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Percec V, Sahoo D. From Frank-Kasper, Quasicrystals, and Biological Membrane Mimics to Reprogramming In Vivo the Living Factory to Target the Delivery of mRNA with One-Component Amphiphilic Janus Dendrimers. Biomacromolecules 2024; 25:1353-1370. [PMID: 38232372 DOI: 10.1021/acs.biomac.3c01390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
This Perspective is dedicated to the 25th Anniversary of Biomacromolecules. It provides a personal view on the developing field of the polymer and biology interface over the 25 years since the journal was launched by the American Chemical Society (ACS). This Perspective is meant to bridge an article published in the first issue of the journal and recent bioinspired developments in the laboratory of the corresponding author. The discovery of supramolecular spherical helices self-organizing into Frank-Kasper and quasicrystals as models of icosahedral viruses, as well as of columnar helical assemblies that mimic rodlike viruses by supramolecular dendrimers, is briefly presented. The transplant of these assemblies from supramolecular dendrimers to block copolymers, giant surfactants, and other self-organized soft matter follows. Amphiphilic self-assembling Janus dendrimers and glycodendrimers as mimics of biological membranes and their glycans are discussed. New concepts derived from them that evolved in the in vivo targeted delivery of mRNA with the simplest one-component synthetic vector systems are introduced. Some synthetic methodologies employed during the synthesis and self-assembly are explained. Unraveling bioinspired applications of novel materials concludes this brief 25th Anniversary Perspective of Biomacromolecules.
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Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Dipankar Sahoo
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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2
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Rey-Tarrío F, Rodríguez R, Quiñoá E, Freire F. Screw sense excess and reversals of helical polymers in solution. Nat Commun 2023; 14:1742. [PMID: 36990975 DOI: 10.1038/s41467-023-37405-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
AbstractThe helix reversal is a structural motif found in helical polymers in the solid state, but whose existence is elusive in solution. Herein, we have shown how the photochemical electrocyclization (PEC) of poly(phenylacetylene)s (PPAs) can be used to determine not only the presence of helix reversals in polymer solution, but also to estimate the screw sense excess. To perform these studies, we used a library of well folded PPAs and different copolymers series made by enantiomeric comonomers that show chiral conflict effect. The results obtained indicate that the PEC of a PPA will depend on the helical scaffold adopted by the PPA backbone and on its folding degree. Then, from these studies it is possible to determine the screw sense excess of a PPA, highly important in applications such as chiral stationary phases in HPLC or asymmetric synthesis.
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3
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Gu Y, Liu L, Wang Y, Zhang C, Dong H, Aoki T. Thermotropic, Reversible, and Highly Selective One-Handed Helical Structure of Hydroxyl Group-Containing Poly(phenylacetylene)s and Its Static Memory. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuanyuan Gu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Lijia Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yudan Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chunhong Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Hongxing Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Toshiki Aoki
- Graduate School of Science and Technology, Niigata University, Nishi-ku, Niigata 950-2181, Japan
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4
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Sakamoto S, Taniguchi T, Sakata Y, Akine S, Nishimura T, Maeda K. Rhodium(I) Complexes Bearing an Aryl‐Substituted 1,3,5‐Hexatriene Chain: Catalysts for Living Polymerization of Phenylacetylene and Potential Helical Chirality of 1,3,5‐Hexatrienes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shiori Sakamoto
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Yoko Sakata
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Shigehisa Akine
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Tatsuya Nishimura
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
- Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
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Percec V, Xiao Q. Helical Chirality of Supramolecular Columns and Spheres Self‐Organizes Complex Liquid Crystals, Crystals, and Quasicrystals. Isr J Chem 2021. [DOI: 10.1002/ijch.202100057] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6323 United States
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6
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Sakamoto S, Taniguchi T, Sakata Y, Akine S, Nishimura T, Maeda K. Rhodium(I) Complexes Bearing an Aryl-Substituted 1,3,5-Hexatriene Chain: Catalysts for Living Polymerization of Phenylacetylene and Potential Helical Chirality of 1,3,5-Hexatrienes. Angew Chem Int Ed Engl 2021; 60:22201-22206. [PMID: 34355472 DOI: 10.1002/anie.202108032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Indexed: 11/06/2022]
Abstract
Unique and bench-stable rhodium(I) complexes bearing an aryl-substituted 1,3,5-hexatriene chain have been synthesized by the reactions of bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer ([Rh(nbd)Cl]2) with aryl boronic acids and diphenylacetylenes in the presence of a 50% aqueous solution of KOH. X-ray crystallographic analysis of the isolated complexes indicated a square-planar structure stabilized by a strong interaction with one of the aryl groups on the 1,3,5-hexatriene chain, which has a helical structure. The helical chirality of the isolated rhodium complexes was confirmed to be sufficiently stable to be resolved by chiral HPLC at room temperature into enantiomers, which showed mirror-imaged CD spectra. It was confirmed that the isolated rhodium complex worked as an initiator for living polymerization of phenylacetylene to give cis-stereoregular poly(phenylacetylene) with a well-controlled molecular weight.
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Affiliation(s)
- Shiori Sakamoto
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technology, JAPAN
| | - Tsuyoshi Taniguchi
- Kanazawa University, Institute of Medical, Pharmaceutical and Health Science, Kakuma-machi, 920-1192, Kanazawa, JAPAN
| | - Yoko Sakata
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technoloty, JAPAN
| | - Shigehisa Akine
- Kanazawa University: Kanazawa Daigaku, Nano Life Science Institute, JAPAN
| | - Tatsuya Nishimura
- Kanazawa University Graduate School of Natural Science and Technology: Kanazawa Daigaku Daigakuin Shizen Kagaku Kenkyuka, Graduate School of Natural Science and Technology, JAPAN
| | - Katsuhiro Maeda
- Kanazawa University: Kanazawa Daigaku, Nano Life Science Institute, JAPAN
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Hong J, Kim S, Park G, Lee Y, Kim H, Kim S, Lee TW, Kim C, You Y. Chiral polymer hosts for circularly polarized electroluminescence devices. Chem Sci 2021; 12:8668-8681. [PMID: 34257865 PMCID: PMC8246120 DOI: 10.1039/d1sc02095a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/11/2021] [Indexed: 11/21/2022] Open
Abstract
Polymer electroluminescence devices producing circularly polarized luminescence (CP PLEDs) have valuable photonic applications. The fabrication of a CP PLED requires a polymer host that provides the appropriate chiral environment around the emitting dopant. However, chemical strategies for the design of chiral polymer hosts remain underdeveloped. We have developed new polymer hosts for CP PLED applications. These polymers were prepared through a free-radical polymerization of 3-vinylcarbazole with a chiral N-alkyl unit. This chiral unit forces the carbazole repeat units to form mutually helical half-sandwich conformers with preferred (P)-helical sense along the polymer main chain. Electronic circular dichroism measurements demonstrate the occurrence of chirality transfer from chiral monomers to achiral monomers during chain growth. The (P)-helical-sense-enriched polymer interacts diastereoselectively with an enantiomeric pair of new phosphorescent (R)- and (S)-dopants. The magnitude of the Kuhn dissymmetry factor (gabs) for the (P)-helically-enriched polymer film doped with the (R)-dopant was found to be one order of magnitude higher than that of the film doped with the (S)-dopant. Photoluminescence dissymmetry factors (gPL) of the order of 10−3 were recorded for the doped films, but the magnitude of diastereomeric enhancement decreased to that of gabs. The chiral polymer host permits faster energy transfer to the phosphorescent dopants than the achiral polymer host. Our photophysical and morphological investigations indicate that the acceleration in the chiral polymer host is due to its longer Förster radius and improved compatibility with the dopants. Finally, multilayer CP PLEDs were fabricated and evaluated. Devices based on the chiral polymer host with the (R)- and (S)-dopants exhibit electroluminescence dissymmetry factors (gEL) of 1.09 × 10−4 and −1.02 × 10−4 at a wavelength of 540 nm, respectively. Although challenges remain in the development of polymer hosts for CP PLEDs, our research demonstrates that chiroptical performances can be amplified by using chiral polymer hosts. Polymer electroluminescence devices producing circularly polarized luminescence (CP PLEDs) have valuable photonic applications.![]()
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Affiliation(s)
- Jayeon Hong
- Division of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University Seoul 03760 Republic of Korea
| | - Sangsub Kim
- Graduate School of Convergence Science and Technology, Inter-University Semiconductor Research Center, Seoul National University Seoul 08826 Republic of Korea
| | - Gyurim Park
- Division of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University Seoul 03760 Republic of Korea
| | - Yongmoon Lee
- Graduate School of Convergence Science and Technology, Inter-University Semiconductor Research Center, Seoul National University Seoul 08826 Republic of Korea
| | - Hyungchae Kim
- Graduate School of Convergence Science and Technology, Inter-University Semiconductor Research Center, Seoul National University Seoul 08826 Republic of Korea
| | - Sungjin Kim
- Department of Materials Science and Engineering, Seoul National University Seoul 08826 Republic of Korea
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Seoul National University Seoul 08826 Republic of Korea.,School of Chemical and Biological Engineering, Research Institute of Advanced Materials, Institute of Engineering Research, Nano Systems Institute (NSI), Seoul National University Seoul 08826 Republic of Korea
| | - Changsoon Kim
- Graduate School of Convergence Science and Technology, Inter-University Semiconductor Research Center, Seoul National University Seoul 08826 Republic of Korea
| | - Youngmin You
- Division of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University Seoul 03760 Republic of Korea
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8
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Rey‐Tarrío F, Rodríguez R, Quiñoá E, Riguera R, Freire F. Photochemical Electrocyclization of Poly(phenylacetylene)s: Unwinding Helices to Elucidate their 3D Structure in Solution. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014780] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Francisco Rey‐Tarrío
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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9
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Rey-Tarrío F, Rodríguez R, Quiñoá E, Riguera R, Freire F. Photochemical Electrocyclization of Poly(phenylacetylene)s: Unwinding Helices to Elucidate their 3D Structure in Solution. Angew Chem Int Ed Engl 2021; 60:8095-8103. [PMID: 33332770 DOI: 10.1002/anie.202014780] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/03/2020] [Indexed: 12/16/2022]
Abstract
Photochemical electrocyclization of poly(phenylacetylene)s (PPAs) is used for the structural elucidation of a polyene backbone. This method not only allows classification of PPAs in cis-cisoidal (ω1 <90°) or cis-transoidal structures (ω1 >90°), but also approximating ω1 . A PPA solution is illuminated with visible light and monitoring the photochemical electrocyclization of the PPA helix by measuring the ECD spectra at different times. PPAs with a cis-cisoidal structure show a reduction of the ECD signal of at least 50 % before 30 min of irradiation, while cis-transoidal helices need much longer time because the transoidal bond must be isomerized. The different cis-cisoidal and cis-transoidal helices require different times to decrease their ECD signal by 50 % (t1/2 ), depending on the degree of compression or stretching of the helix, establishing a relationship between the secondary structure adopted by PPA (ω1 ) and the time required to lose the ECD vinylic signal by light irradiation.
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Affiliation(s)
- Francisco Rey-Tarrío
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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10
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Percec V, Xiao Q. Helical Self-Organizations and Emerging Functions in Architectures, Biological and Synthetic Macromolecules. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210015] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
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11
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Percec V, Xiao Q, Lligadas G, Monteiro MJ. Perfecting self-organization of covalent and supramolecular mega macromolecules via sequence-defined and monodisperse components. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Palomo L, Rodríguez R, Medina S, Quiñoá E, Casado J, Freire F, Ramírez FJ. Raman Optical Activity (ROA) as a New Tool to Elucidate the Helical Structure of Poly(phenylacetylene)s. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000651] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Luis Palomo
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Samara Medina
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Juan Casado
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela Santiago de Compostela 15782 Spain
| | - Francisco J. Ramírez
- Departamento de Química Física Facultad de Ciencias Universidad de Málaga Campus de Teatinos Málaga 29071 Spain
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Palomo L, Rodríguez R, Medina S, Quiñoá E, Casado J, Freire F, Ramírez FJ. Raman Optical Activity (ROA) as a New Tool to Elucidate the Helical Structure of Poly(phenylacetylene)s. Angew Chem Int Ed Engl 2020; 59:9080-9087. [PMID: 32125060 DOI: 10.1002/anie.202000651] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/18/2020] [Indexed: 02/02/2023]
Abstract
Poly(phenylacetylene)s are a family of helical polymers constituted by conjugated double bonds. Raman spectra of these polymers show a structural fingerprint of the polyene backbone which, in combination with its helical orientation, makes them good candidates to be studied by Raman optical activity (ROA). Four different well-known poly(phenylacetylene)s adopting different scaffolds and ten different helical senses have been prepared. Raman and ROA spectra were recorded and allowed to establish ROA-spectrum/helical-sense relationships: a left/right-handed orientation of the polyene backbone (Mhelix /Phelix ) produces a triplet of positive/negative ROA bands. Raman and ROA spectra of each polymer exhibited the same profile, and the sign of the ROA spectrum was opposite to the lowest-energy electronic circular dichroism (ECD) band, indicating a resonance effect. Resonance ROA appears then as an indicator of the helical sense of poly(phenylacetylene)s, especially for those with an extra Cotton band in the ECD spectrum, where a wrong helical sense is assigned based on ECD, while ROA alerts of this misassignment.
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Affiliation(s)
- Luis Palomo
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, Málaga, 29071, Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Samara Medina
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, Málaga, 29071, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Juan Casado
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, Málaga, 29071, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materials Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Francisco J Ramírez
- Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, Málaga, 29071, Spain
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14
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Percec V. Merging Macromolecular and Supramolecular Chemistry into Bioinspired Synthesis of Complex Systems. Isr J Chem 2020. [DOI: 10.1002/ijch.202000004] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry and Laboratory for Research on the Structure of MatterUniversity of Pennsylvania, Philadelphia Pennsylvania 19104-6323 United States
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15
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Ishidate R, Markvoort AJ, Maeda K, Yashima E. Unexpectedly Strong Chiral Amplification of Chiral/Achiral and Chiral/Chiral Copolymers of Biphenylylacetylenes and Further Enhancement/Inversion and Memory of the Macromolecular Helicity. J Am Chem Soc 2019; 141:7605-7614. [DOI: 10.1021/jacs.9b02904] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ryoma Ishidate
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
| | - Albert J. Markvoort
- Institute for Complex Molecular Systems and Computational Biology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | - Eiji Yashima
- Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
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16
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Ishiwari F, Nakazono K, Koyama Y, Takata T. Induction of Single-Handed Helicity of Polyacetylenes Using Mechanically Chiral Rotaxanes as Chiral Sources. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707926] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Fumitaka Ishiwari
- Department of Chemical Science and Engineering; Tokyo Institute of Technology; Ookayama, Meguro-ku Tokyo 152-8552 Japan
- Present address: Laboratory for Chemistry and Life Science; Institute of Innovative Research; Tokyo Institute of Technology; 4259 Nagatsuta Midori-ku Yokohama 226-8503 Japan
| | - Kazuko Nakazono
- Department of Chemical Science and Engineering; Tokyo Institute of Technology; Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Yasuhito Koyama
- Department of Chemical Science and Engineering; Tokyo Institute of Technology; Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering; Tokyo Institute of Technology; Ookayama, Meguro-ku Tokyo 152-8552 Japan
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17
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Ishiwari F, Nakazono K, Koyama Y, Takata T. Induction of Single-Handed Helicity of Polyacetylenes Using Mechanically Chiral Rotaxanes as Chiral Sources. Angew Chem Int Ed Engl 2017; 56:14858-14862. [PMID: 28973787 DOI: 10.1002/anie.201707926] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/12/2017] [Indexed: 12/13/2022]
Abstract
Effective induction of preferred-handed helicity of polyacetylenes by pendant mechanically chiral rotaxanes is discussed. Polyacetylenes possessing optically active mechanically chiral rotaxanes in the side chains were synthesized by the polymerization of the corresponding enantiopure [2]rotaxane-type ethynyl monomers prepared by the chiral-phase HPLC separations. The CD Cotton effects revealed that the polyacetylenes took preferred-handed helical conformations depending on the rotaxane chirality. The preferred-handed helix was not disturbed by an additional chiral substituent on the rotaxane side chain. These results demonstrate the significance and utility of mechanically chiral rotaxanes for the effective construction of asymmetric fields.
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Affiliation(s)
- Fumitaka Ishiwari
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.,Present address: Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Kazuko Nakazono
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Yasuhito Koyama
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
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18
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Freire F, Quiñoá E, Riguera R. Chiral nanostructure in polymers under different deposition conditions observed using atomic force microscopy of monolayers: poly(phenylacetylene)s as a case study. Chem Commun (Camb) 2017; 53:481-492. [PMID: 27827473 DOI: 10.1039/c6cc05598b] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Dynamic poly(phenylacetylene)s (PPAs) adopt helical structures with different elongation or helical senses depending on the types of pendants. Hence, a good knowledge of the parameters that define their structures becomes a key factor in the understanding of their properties and functions. Herein, the techniques used for the study of the secondary structure of PPAs using atomic-force microscopy (AFM) are presented, with special attention directed towards the methods used for the preparation of monolayers, and their consequences in the quality of the AFM images. Thus, monolayers formed by drop casting, spin coating followed by crystallization or annealing, Langmuir-Blodgett and Langmuir-Schaefer methods, onto highly oriented pyrolytic graphite (HOPG) or mica, are described, together with the AFM images and the resulting helical structure obtained for different PPAs. Furthermore, some conclusions are drawn both on the adequacy of the different techniques for the formation of monolayers and on the solid supports utilized to elucidate the secondary structure of different PPAs.
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Affiliation(s)
- F Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - E Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - R Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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19
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Andreopoulou KA, Peterca M, Wilson DA, Partridge BE, Heiney PA, Percec V. Demonstrating the 81-Helicity and Nanomechanical Function of Self-Organizable Dendronized Polymethacrylates and Polyacrylates. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01216] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Katerina A. Andreopoulou
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Benjamin E. Partridge
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Paul A. Heiney
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry and ‡Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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20
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Wang S, Chen J, Feng X, Shi G, Zhang J, Wan X. Conformation Shift Switches the Chiral Amplification of Helical Copoly(phenylacetylene)s from Abnormal to Normal “Sergeants-and-Soldiers” Effect. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01028] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sheng Wang
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Junxian Chen
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xuanyu Feng
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ge Shi
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Zhang
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xinhua Wan
- Beijing National Laboratory
for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics
of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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21
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Wang S, Feng X, Zhang J, Yu P, Guo Z, Li Z, Wan X. Helical Conformations of Poly(3,5-disubstituted phenylacetylene)s Tuned by Pendant Structure and Solvent. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00615] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sheng Wang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xuanyu Feng
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jie Zhang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ping Yu
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Zongxia Guo
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Zhibo Li
- School
of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, China
| | - Xinhua Wan
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Polymer
Chemistry and Physics of Ministry of Education, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
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22
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Affiliation(s)
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology
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23
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Liu B, Chen Z, Lin L, Han Y, Pang J, Jiang Z. Synthesis and characterization of poly(arylene ether ketone)s with 3,6-diphenyl-9 H-carbazole pendants using C–N coupling reaction. HIGH PERFORM POLYM 2016. [DOI: 10.1177/0954008316655592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
3,6-Diphenyl-9 H-carbazole pendants are grafted herein to poly(arylene ether ketone)s (PAEKs) via the Ullmann C–N coupling reaction. To the best of our knowledge, this is the first time that PAEKs containing a carbazole pendant (Cz) have been synthesized through the Ullmann C–N coupling reaction. The high molecular weights of PAEK-Cz (PAEKs with 3,6-diphenyl-9 H-carbazole pendants) are inherited from their precursors, owing to the high reactivity of their monomers. The obtained PAEK-Cz- x polymers exhibit good solubility in most common organic solvents and excellent thermal stabilities, with the 5% weight loss temperatures for all products being above 598°C under a nitrogen atmosphere. The glass transition temperatures are all above 199°C and can be controlled by adjusting the feed ratio of monomers. The polymer membranes obtained by the casting method are tough and thus have strong potential for practical applications.
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Affiliation(s)
| | | | | | | | | | - Zhenhua Jiang
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, People’s Republic of China
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24
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25
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Liu X, Wang J, Yang S, Men Y, Sun P, Chen EQ. Entropy effect of alkyl tails on phase behaviors of side-chain-jacketed polyacetylenes: Columnar phase and isotropic phase reentry. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.02.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Affiliation(s)
- Félix Freire
- Department
of Organic Chemistry
and Center for Research in Biological Chemistry and Molecular Materials
(CIQUS), University of Santiago de Compostela, E-15782 Santiago
de Compostela, Spain
| | - Emilio Quiñoá
- Department
of Organic Chemistry
and Center for Research in Biological Chemistry and Molecular Materials
(CIQUS), University of Santiago de Compostela, E-15782 Santiago
de Compostela, Spain
| | - Ricardo Riguera
- Department
of Organic Chemistry
and Center for Research in Biological Chemistry and Molecular Materials
(CIQUS), University of Santiago de Compostela, E-15782 Santiago
de Compostela, Spain
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27
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Barkley DA, Koga T, Rudick JG. Homeotropically Aligned Self-Organizing Dendronized Polymer. Macromolecules 2015. [DOI: 10.1021/ma502522s] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Deborah A. Barkley
- Department
of Chemistry and ‡Department of Materials Science and Engineering, Stony Brook University, Stony
Brook, New York 11794-3400, United States
| | - Tadanori Koga
- Department
of Chemistry and ‡Department of Materials Science and Engineering, Stony Brook University, Stony
Brook, New York 11794-3400, United States
| | - Jonathan G. Rudick
- Department
of Chemistry and ‡Department of Materials Science and Engineering, Stony Brook University, Stony
Brook, New York 11794-3400, United States
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28
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Sasaki T, Yoshida Y, Mawatari Y, Tabata M. Remarkably Stretched Cis–Transoid Helices Generated in Solid Phase and Solution of Poly(carbazole acetylene) Prepared Using an Organorhodium Catalyst in Toluene. Macromolecules 2015. [DOI: 10.1021/ma5024654] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takahiro Sasaki
- Department
of Applied Chemistry, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Yoshiaki Yoshida
- Department
of Applied Chemistry, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Yasuteru Mawatari
- Department
of Applied Chemistry, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
- Research
Center for Environmentally Friendly Materials Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
| | - Masayoshi Tabata
- Department
of Applied Chemistry, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
- Research
Center for Environmentally Friendly Materials Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
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29
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Zhang C, Wang H, Yang T, Ma R, Liu L, Sakai R, Satoh T, Kakuchi T, Okamoto Y. Synthesis and chiral recognition of helical poly(phenylacetylene)s bearingl-phenylglycinol and its phenylcarbamates as pendants. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27506] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Chunhong Zhang
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
| | - Hailun Wang
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
| | - Taotao Yang
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
| | - Rui Ma
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
| | - Lijia Liu
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
| | - Ryosuke Sakai
- Department of Materials Chemistry; Asahikawa National College of Technology; Asahikawa 071-8142 Japan
| | - Toshifumi Satoh
- Division of Biotechnology and Macromolecular Chemistry; Graduate School of Chemical Sciences and Engineering, Faculty of Engineering, Hokkaido University; Sapporo 060-8628 Japan
| | - Toyoji Kakuchi
- Division of Biotechnology and Macromolecular Chemistry; Graduate School of Chemical Sciences and Engineering, Faculty of Engineering, Hokkaido University; Sapporo 060-8628 Japan
| | - Yoshio Okamoto
- Polymer Materials Research Center, Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University; Harbin 150001 China
- Nagoya University; Furo-cho Chikusa-ku Nagoya 464-8603 Japan
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30
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Suzuki Y, Miyagi Y, Shiotsuki M, Inai Y, Masuda T, Sanda F. Synthesis and helical structures of poly(ω-alkynamide)s having chiral side chains: effect of solvent on their screw-sense inversion. Chemistry 2014; 20:15131-43. [PMID: 25264082 DOI: 10.1002/chem.201402628] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Indexed: 11/06/2022]
Abstract
New ω-alkynamides, (S)-HC≡CCH2CONHCH2CH(CH3)CH2CH3 (1) and (S)-HC≡CCH2CH2CONHCH(CH3)CH2CH2CH2CH2CH3 (2) were synthesized and polymerized with a rhodium catalyst in CHCl3 to obtain cis-stereoregular poly(ω-alkynamide)s (poly(1) and poly(2)). Polarimetric, CD, and IR spectroscopic studies revealed that in solution the polymers adopted predominantly one-handed helical structures stabilized by intramolecular hydrogen bonds between the pendent amide groups. This behavior was similar to that of the corresponding poly(N-alkynylamide) counterparts (poly(3) and poly(4)) reported previously, whereas the helical senses were opposite to each other. The helical structures of the poly(ω-alkynamide)s were stable upon heating similar to those of the poly(N-alkynylamide)s, but the solvent response was completely different. An increase in MeOH content in CHCl3/MeOH resulted in inversion of the predominant screw-sense for poly(1) and poly(2). Conversely, poly(3) was transformed into a random coil, and poly(4) maintained the predominant screw-sense irrespective of MeOH content. The solvent dependence of predominant screw-sense for poly(1) and poly(2) was reasonably explained by molecular orbital studies using the conductor-like screening model (COSMO).
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Affiliation(s)
- Yuji Suzuki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8510 (Japan)
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31
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Barata PD, Prata JV. New entities for sensory chemistry based on calix[4]arene-carbazole conjugates: from synthesis to applications. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.804185] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Patrícia D. Barata
- Laboratório de Química Orgânica, Departamento de Engenharia Química and Centro de Investigação de Engenharia Química e Biotecnologia, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007, Lisboa, Portugal
| | - José V. Prata
- Laboratório de Química Orgânica, Departamento de Engenharia Química and Centro de Investigação de Engenharia Química e Biotecnologia, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007, Lisboa, Portugal
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32
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Xu A, Hu G, Hu Y, Zhang X, Liu K, Kuang G, Zhang A. Remarkable Structure Effects on Chiroptical Properties of Polyisocyanides Carrying Proline Pendants. Chem Asian J 2013; 8:2003-14. [DOI: 10.1002/asia.201300297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Indexed: 11/11/2022]
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33
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Roche C, Percec V. Complex Adaptable Systems based on Self‐Assembling Dendrimers and Dendrons: Toward Dynamic Materials. Isr J Chem 2013. [DOI: 10.1002/ijch.201200099] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cécile Roche
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104‐6323 (USA) phone: +1 215‐573‐5527 fax: +1 215‐573‐7888
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104‐6323 (USA) phone: +1 215‐573‐5527 fax: +1 215‐573‐7888
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34
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Leiras S, Freire F, Seco JM, Quiñoá E, Riguera R. Controlled modulation of the helical sense and the elongation of poly(phenylacetylene)s by polar and donor effects. Chem Sci 2013. [DOI: 10.1039/c3sc50835h] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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From Synthetic Macromolecules to Biological-Like Complex Systems. HIERARCHICAL MACROMOLECULAR STRUCTURES: 60 YEARS AFTER THE STAUDINGER NOBEL PRIZE I 2013. [DOI: 10.1007/12_2013_273] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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36
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Nanomechanical Function Arising from the Complex Architecture of Dendronized Helical Polymers. HIERARCHICAL MACROMOLECULAR STRUCTURES: 60 YEARS AFTER THE STAUDINGER NOBEL PRIZE II 2013. [DOI: 10.1007/12_2013_241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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37
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Yu ZQ, Lam JWY, Zhao K, Zhu CZ, Yang S, Lin JS, Li BS, Liu JH, Chen EQ, Tang BZ. Mesogen jacketed liquid crystalline polyacetylene containing triphenylene discogen: synthesis and phase structure. Polym Chem 2013. [DOI: 10.1039/c2py20535a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Hosono N, Gillissen MAJ, Li Y, Sheiko SS, Palmans ARA, Meijer EW. Orthogonal Self-Assembly in Folding Block Copolymers. J Am Chem Soc 2012. [DOI: 10.1021/ja310422w] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nobuhiko Hosono
- Institute for Complex Molecular
Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600
MB Eindhoven, The Netherlands
| | - Martijn A. J. Gillissen
- Institute for Complex Molecular
Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600
MB Eindhoven, The Netherlands
| | - Yuanchao Li
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel
Hill, North Carolina 27599-3290, United States
| | - Sergei S. Sheiko
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel
Hill, North Carolina 27599-3290, United States
| | - Anja R. A. Palmans
- Institute for Complex Molecular
Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600
MB Eindhoven, The Netherlands
| | - E. W. Meijer
- Institute for Complex Molecular
Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600
MB Eindhoven, The Netherlands
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39
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Han Y, Chen L, Chen Y. Diketopyrrolopyrrole-based liquid crystalline conjugated donor-acceptor copolymers with reduced band gap for polymer solar cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26394] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Hu JS, Li D, Zhang WC, Meng QB. Synthesis, structure, and properties of chiral liquid crystal monomers and polymers based on menthol. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26350] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Sogawa H, Shiotsuki M, Sanda F. α-Propargyl amino acid-derived optically active novel substituted polyacetylenes: Synthesis, secondary structures, and responsiveness to ions. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25975] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Percec V, Imam MR, Peterca M, Leowanawat P. Self-Organizable Vesicular Columns Assembled from Polymers Dendronized with Semifluorinated Janus Dendrimers Act As Reverse Thermal Actuators. J Am Chem Soc 2012; 134:4408-20. [DOI: 10.1021/ja2118267] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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43
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Wu H, Zhang L, Xu Y, Ma Z, Shen Z, Fan X, Zhou Q. Amphiphilic mesogen-jacketed liquid crystalline polymers: Design, synthesis, and self-assembly behaviors. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25946] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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You J, Li G, Wang Z. Dendrimers with tetraphenylsilane core and 9-phenylcarbazole-based dendrons: synthesis, photophysics, and electrochemical behavior. RSC Adv 2012. [DOI: 10.1039/c2ra21439c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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45
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46
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Ishiwari F, Fukasawa KI, Sato T, Nakazono K, Koyama Y, Takata T. A Rational Design for the Directed Helicity Change of Polyacetylene Using Dynamic Rotaxane Mobility by Means of Through-Space Chirality Transfer. Chemistry 2011; 17:12067-75. [DOI: 10.1002/chem.201101727] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 11/09/2022]
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47
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Zhang XA, Chen MR, Zhao H, Gao Y, Wei Q, Zhang S, Qin A, Sun JZ, Tang BZ. A Facile Synthetic Route to Functional Poly(phenylacetylene)s with Tunable Structures and Properties. Macromolecules 2011. [DOI: 10.1021/ma2014657] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao A Zhang
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Min Rui Chen
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Hui Zhao
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Yuan Gao
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Qiang Wei
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Shuang Zhang
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Anjun Qin
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Jing Zhi Sun
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
| | - Ben Zhong Tang
- Department of Polymer Science and Engineering, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
- Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
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48
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Mikami K, Daikuhara H, Inagaki Y, Yokoyama A, Yokozawa T. Chiral Amplification Based on Sergeants and Soldiers Effect in Helically Folded Poly(naphthalenecarboxamide). Macromolecules 2011. [DOI: 10.1021/ma200055g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Koichiro Mikami
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Hiroaki Daikuhara
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Yuko Inagaki
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Akihiro Yokoyama
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Tsutomu Yokozawa
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
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49
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Chen Z, Ono RJ, Wiggins KM, Cui H, Rong C, Bielawski CW, Jiang Z. Synthesis and characterization of polyketones containing pendant carbazoles. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.02.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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50
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Jim CKW, Lam JWY, Leung CWT, Qin A, Mahtab F, Tang BZ. Helical and Luminescent Disubstituted Polyacetylenes: Synthesis, Helicity, and Light Emission of Poly(diphenylacetylene)s Bearing Chiral Menthyl Pendant Groups. Macromolecules 2011. [DOI: 10.1021/ma200075y] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cathy K. W. Jim
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W. Y. Lam
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Chris W. T. Leung
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Anjun Qin
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Faisal Mahtab
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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