1
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Leo CM, Jang J, Corey EJ, Neary WJ, Bowman JI, Kennemur JG. Comparison of Polypentenamer and Polynorbornene Bottlebrushes in Dilute Solution. ACS POLYMERS AU 2024; 4:235-246. [PMID: 38882033 PMCID: PMC11177302 DOI: 10.1021/acspolymersau.3c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 06/18/2024]
Abstract
Bottlebrush (BB) polymers were synthesized via grafting-from-atom transfer radical polymerization (ATRP) of styrene on polypentenamer and polynorbornene macroinitiators with matched grafting density (n g = 4) and backbone degrees of polymerization (122 ≥ N bb ≥ 61) to produce a comparative study on their respective dilute solution properties as a function of increasing side chain degree of polymerization (116 ≥ N sc ≥ 5). The grafting-from technique produced near quantitative grafting efficiency and narrow dispersity N sc as evidenced by spectroscopic analysis and ring closing metathesis depolymerization of the polypentenamer BBs. The versatility of this synthetic approach permitted a comprehensive survey of power law expressions that arise from monitoring intrinsic viscosity, hydrodynamic radius, and radius of gyration as a function of increasing the molar mass of the BBs by increasing N sc. These values were compared to a series of linear (nongrafted, N sc = 0) macroinitiators in addition to linear grafts. This unique study allowed elucidation of the onset of bottlebrush behavior for two different types of bottlebrush backbones with identical grafting density but inherently different flexibility. In addition, grafting-from ATRP of methyl acrylate on a polypentenamer macroinitiator allowed the observation of the effects of graft chemistry in comparison to polystyrene. Differences in the observed scaling relationships in dilute solution as a function of each of these synthetic variants are discussed.
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Affiliation(s)
- Courtney M Leo
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
| | - Jaehoon Jang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
| | - Ethan J Corey
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
| | - William J Neary
- Department of Chemistry, University of California at Riverside, Riverside, California 92521, United States
| | - Jared I Bowman
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Justin G Kennemur
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32303, United States
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2
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Guillory GA, Marxsen SF, Alamo RG, Kennemur JG. Precise Isotactic or Atactic Pendant Alcohols on a Polyethylene Backbone at Every Fifth Carbon: Synthesis, Crystallization, and Thermal Properties. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gina A. Guillory
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Stephanie F. Marxsen
- Department of Chemical and Biomedical Engineering College of Engineering, Florida A&M University−Florida State University (FAMU-FSU), 2525 Pottsdamer Street, Tallahassee, Florida 32310, United States
| | - Rufina G. Alamo
- Department of Chemical and Biomedical Engineering College of Engineering, Florida A&M University−Florida State University (FAMU-FSU), 2525 Pottsdamer Street, Tallahassee, Florida 32310, United States
| | - Justin G. Kennemur
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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3
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Panyam PKR, Stöhr L, Wang D, Frey W, Buchmeiser MR. Chromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo
N
‐Heterocyclic Carbene Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pradeep K. R. Panyam
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Stöhr
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Dongren Wang
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf Körschtalstr. 26 73770 Denkendorf Germany
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4
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Kesharwani MK, Elser I, Musso JV, Buchmeiser MR, Kästner J. Reaction Mechanism of Ring-Closing Metathesis with a Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalyst. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Ji Y, Zhou T, van de Wouw HL, Klausen RS. Organoborane Strategy for Polymers Bearing Lactone, Ester, and Alcohol Functionality. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02201] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yuyang Ji
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Tiffany Zhou
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Heidi L. van de Wouw
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, Maryland 21218, United States
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6
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Yi N, Chen TTD, Unruangsri J, Zhu Y, Williams CK. Orthogonal functionalization of alternating polyesters: selective patterning of (AB) n sequences. Chem Sci 2019; 10:9974-9980. [PMID: 32015813 PMCID: PMC6968736 DOI: 10.1039/c9sc03756j] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/10/2019] [Indexed: 11/21/2022] Open
Abstract
Precision functionalized polyesters, with defined monomer sequences, are prepared using an orthogonal post-polymerization strategy. These polyesters can be synthesized from bio-derived monomers and are targeted to degrade, by hydrolysis processes, to biocompatible diols and diacids; the new structures enabled by this methodology would be very difficult to synthesize by alternative strategies. A series of 9 well-defined highly alternating AB-type copolyesters, containing terminal and internal alkene functionalities, are synthesized in high conversions by the ring-opening copolymerization of epoxides and cyclic anhydrides. Firstly, the polyesters are functionalized by a selective hydroboration-oxidation reaction to exclusively and quantitatively hydroxylate the terminal alkenes, leaving the alternating internal alkenes unreacted. Subsequently, the internal alkenes are quantitatively transformed into carboxylic acid, amine, alkyl and oligo-ether groups, by thiol-ene reactions, to afford AB polyesters with alternating functional substituents. Three polyesters showing alternating hydrophilic/hydrophobic side-chain sequences self-assemble in solution to form nanostructures that are characterized using transmission electron microscopy and dynamic light scattering methods (R h = 100-300 nm). The selective patterning methodology provides facile, efficient and orthogonal functionalization of alternating polyesters with near-quantitative (AB) n repeat sequences. The method is expected to be generalizable to other polymers and provides access to completely new AB alternating structures with the potential to exploit ligand multi-valency and adjacency to enhance properties.
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Affiliation(s)
- Ni Yi
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK .
| | - Thomas T D Chen
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK .
| | - Junjuda Unruangsri
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW7 1AZ , UK
| | - Yunqing Zhu
- Department of Chemistry , Imperial College London , South Kensington Campus , London , SW7 1AZ , UK
| | - Charlotte K Williams
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK .
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7
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Abstract
This Viewpoint highlights the viability and increasing variety of functionalized polypentenamers as unique and valuable materials created through enthalpy-driven ring-opening metathesis polymerization (ROMP) of low ring strain cyclopentene monomers. The terms "low ring strain" and "enthalpy-driven" are typically conflicting ideologies for successful ROMP; however, these monomers possess a heightened sensitivity to reaction conditions, which may be leveraged in a number of ways to provide performance elastomers with good yield and precise functional topologies. Over the last several years, a rekindled interest in these systems has led to a renaissance of research aimed at improving their synthesis and exploring their potential. Their chemistry, applications, and future outlook are discussed.
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Affiliation(s)
- William J. Neary
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Justin G. Kennemur
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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8
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Neary WJ, Fultz BA, Kennemur JG. Well-Defined and Precision-Grafted Bottlebrush Polypentenamers from Variable Temperature ROMP and ATRP. ACS Macro Lett 2018; 7:1080-1086. [PMID: 35632939 DOI: 10.1021/acsmacrolett.8b00576] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Polypentenamer macroinitiators are synthesized through variable temperature ring opening metathesis polymerization of 3-cyclopentenyl α-bromoisobutyrate, which has sufficient ring strain (ΔHp = -22.6 kJ mol-1) to produce targeted molar mass (<5% from theoretical), low dispersity (1.17 ≤ Đ ≤ 1.23), and high conversion (∼72%). An initiation site for atom-transfer radical polymerization at every fifth backbone carbon allows "grafting-from" of styrene with quantitative initiation and linear molar mass increase with time. These bottlebrushes retain a low dispersity (Đ ≤ 1.34) at varying graft degrees of polymerization (5 ≤ Nsc ≤ 49) and have a glass transition temperature highly sensitized to graft length. Extension of the grafts with methyl methacrylate produces a core-shell brush polymer with high molar mass (>1000 kg mol-1) and Đ = 1.33. This system exhibits high synthetic versatility and control with a unique flexible backbone to expand the suite of densely grafted polymers.
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Affiliation(s)
- William J. Neary
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Brandon A. Fultz
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Justin G. Kennemur
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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9
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Brits S, Neary WJ, Palui G, Kennemur JG. A new echelon of precision polypentenamers: highly isotactic branching on every five carbons. Polym Chem 2018. [DOI: 10.1039/c7py01922j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A systematic study shows that bulky allylic substituents on cyclopentene monomers affords a highly precise microstructure after ring-opening metathesis polymerization.
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Affiliation(s)
- Stefan Brits
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - William J. Neary
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Goutam Palui
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Justin G. Kennemur
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
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10
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Song S, Zhang Z, Liu X, Fu Z, Xu J, Fan Z. Synthesis and characterization of functional polyethylene with regularly distributed thioester pendants via ring-opening metathesis polymerization. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28870] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Shaofei Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhen Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Xiaoyu Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhisheng Fu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
| | - Zhiqiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 China
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11
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Song S, Xing Z, Cheng Z, Fu Z, Xu J, Fan Z. Functional polyethylene with regularly distributed ester pendants via ring-opening metathesis polymerization of ester functionalized cyclopentene: Synthesis and characterization. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Ciftci M, Wang D, Buchmeiser M, Yagci Y. Modification of Polyolefins by Click Chemistry. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700279] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mustafa Ciftci
- Faculty of Science and Letters; Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
| | - Dongren Wang
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Yusuf Yagci
- Faculty of Science and Letters; Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department; Faculty of Science; King Abdulaziz University; PO Box 80203 Jeddah 21589 Saudi Arabia
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13
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Hlil AR, Balogh J, Moncho S, Su HL, Tuba R, Brothers EN, Al-Hashimi M, Bazzi HS. Ring opening metathesis polymerization (ROMP) of five- to eight-membered cyclic olefins: Computational, thermodynamic, and experimental approach. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28695] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Antsar R. Hlil
- Department of Chemistry; Texas A&M University at Qatar; Doha Qatar
| | - Janos Balogh
- Department of Chemistry; Texas A&M University at Qatar; Doha Qatar
| | - Salvador Moncho
- Department of Chemistry; Texas A&M University at Qatar; Doha Qatar
| | - Haw-Lih Su
- Department of Chemistry; Texas A&M University at Qatar; Doha Qatar
| | - Robert Tuba
- Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences; Budapest Hungary
| | | | | | - Hassan S. Bazzi
- Department of Chemistry; Texas A&M University at Qatar; Doha Qatar
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14
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Neary WJ, Kennemur JG. Variable Temperature ROMP: Leveraging Low Ring Strain Thermodynamics To Achieve Well-Defined Polypentenamers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01148] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- William J. Neary
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
| | - Justin G. Kennemur
- Department of Chemistry and
Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, United States
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15
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van der Ende M, Wang D, Frey W, Buchmeiser MR. Pentamethylcyclopentadienyl Titanium(IV) Amido Pyridylene Phenylene and Pentamethylcyclopentadienyl Titanacyclopropane Amido Complexes and their Behavior in the Polymerization of Ethylene and Cyclic Olefins. ChemCatChem 2017. [DOI: 10.1002/cctc.201601495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Melita van der Ende
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Dongren Wang
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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16
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Buchmeiser MR. Tandem Ring-Opening Metathesis - Vinyl Insertion Polymerization: Fundamentals and Application to Functional Polyolefins. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600672] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
- Institute of Textile Chemistry and Chemical Fibers; Körschtalstr. 26 D-73770 Denkendorf Germany
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17
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Song S, Fu Z, Xu J, Fan Z. Synthesis of functional polyolefins via ring-opening metathesis polymerization of ester-functionalized cyclopentene and its copolymerization with cyclic comonomers. Polym Chem 2017. [DOI: 10.1039/c7py01330b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Viaring-opening metathesis polymerization, functionalized polyolefins were synthesized by homopolymerization of alkoxycarbonyl cyclopentene and its copolymerizations with other cyclic olefins.
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Affiliation(s)
- Shaofei Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhisheng Fu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhiqiang Fan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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18
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Ciftci M, Arslan M, Buchmeiser M, Yagci Y. Polyethylene- g-Polystyrene Copolymers by Combination of ROMP, Mn 2(CO) 10-Assisted TEMPO Substitution and NMRP. ACS Macro Lett 2016; 5:946-949. [PMID: 35607209 DOI: 10.1021/acsmacrolett.6b00460] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis of polyethylene-graft-polystyrene copolymers by a multistep "grafting from" approach is described. In the first step, a bromo-functional polyethylene (PE-Br) was synthesized via ring-opening metathesis polymerization (ROMP) of cis-cyclooctene (COE) and quantitative hydrobromination. Subsequent irradiation of PE-Br under visible light in the presence of dimanganese decacarbonyl (Mn2(CO)10) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) resulted in the formation of TEMPO-substituted polyethylene (PE-TEMPO). Polystyrene (PS) chains were then grown via nitroxide mediated radical polymerization (NMRP) from the PE-TEMPO precursor to give desired PE-g-PS copolymers in a controlled manner. The intermediates at each step and final graft copolymers were characterized by 1H NMR, FT-IR, GPC, and DSC analyses.
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Affiliation(s)
- Mustafa Ciftci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
| | - Mustafa Arslan
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
| | - Michael Buchmeiser
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70550 Denkendorf, Germany
| | - Yusuf Yagci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
- Center
of Excellence for Advanced Materials Research (CEAMR) and Chemistry
Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
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19
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Neary WJ, Kennemur JG. A Precision Ethylene-Styrene Copolymer with High Styrene Content from Ring-Opening Metathesis Polymerization of 4-Phenylcyclopentene. Macromol Rapid Commun 2016; 37:975-9. [PMID: 27120434 DOI: 10.1002/marc.201600121] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/04/2016] [Indexed: 11/07/2022]
Abstract
Ring-opening metathesis polymerization of 4-phenylcyclopentene is investigated for the first time under various conditions. Thermodynamic analysis reveals a polymerization enthalpy and entropy sufficient for high molar mass and conversions at lower temperatures. In one example, neat polymerization using Hoveyda-Grubbs second generation catalyst at -15 °C yields 81% conversion to poly(4-phenylcyclopentene) (P4PCP) with a number average molar mass of 151 kg mol(-1) and dispersity of 1.77. Quantitative homogeneous hydrogenation of P4PCP results in a precision ethylene-styrene copolymer (H2 -P4PCP) with a phenyl branch at every fifth carbon along the backbone. This equates to a perfectly alternating trimethylene-styrene sequence with 71.2% w/w styrene content that is inaccessible through molecular catalyst copolymerization strategies. Differential scanning calorimetry confirms P4PCP and H2 -P4PCP are amorphous materials with similar glass transition temperatures (Tg ) of 17 ± 2 °C. Both materials present well-defined styrenic analogs for application in specialty materials or composites where lower softening temperatures may be desired.
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Affiliation(s)
- William J Neary
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, DLC 118, Tallahassee, FL, 32306, USA
| | - Justin G Kennemur
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, DLC 118, Tallahassee, FL, 32306, USA
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20
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Mugemana C, Bukhryakov KV, Bertrand O, Vu KB, Gohy JF, Hadjichristidis N, Rodionov VO. Ring opening metathesis polymerization of cyclopentene using a ruthenium catalyst confined by a branched polymer architecture. Polym Chem 2016. [DOI: 10.1039/c6py00389c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A Grubbs-type Ru alkene metathesis catalyst has been covalently anchored in the core of a globular star polymer. The spatially-confined catalyst is capable of efficient ring-opening metathesis polymerization of cyclopentene, a low-strain monomer.
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Affiliation(s)
- Clément Mugemana
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal
- Kingdom of Saudi Arabia
| | - Konstantin V. Bukhryakov
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal
- Kingdom of Saudi Arabia
| | - Olivier Bertrand
- Université Catholique de Louvain
- Institute of Condensed Matter and Nanosciences (IMCN)
- Bio and soft matter (BSMA)
- Louvain-la-Neuve
- Belgium
| | - Khanh B. Vu
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal
- Kingdom of Saudi Arabia
| | - Jean-François Gohy
- Université Catholique de Louvain
- Institute of Condensed Matter and Nanosciences (IMCN)
- Bio and soft matter (BSMA)
- Louvain-la-Neuve
- Belgium
| | - Nikos Hadjichristidis
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal
- Kingdom of Saudi Arabia
| | - Valentin O. Rodionov
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal
- Kingdom of Saudi Arabia
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21
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Zhao Y, Chen J, Zhu W, Zhang K. Unique post-functionalization method for ROMP polymers based on Triazolinedione Alder-ene chemistry. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Ciftci M, Kork S, Xu G, Buchmeiser MR, Yagci Y. Polyethylene-g-poly(cyclohexene oxide) by Mechanistic Transformation from ROMP to Visible Light-Induced Free Radical Promoted Cationic Polymerization. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00086] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Mustafa Ciftci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
| | - Senem Kork
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
| | - Guangjuan Xu
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwladring 55, D-70550 Denkendorf, Germany
| | - Michael R. Buchmeiser
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwladring 55, D-70550 Denkendorf, Germany
| | - Yusuf Yagci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul, Turkey
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23
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Xu G, Narayana GV, Speiser M, Wang D, Zou Y, Buchmeiser MR. Poly(ethylene)-co-Poly(norborn-2-ene) Prepared by Group IV Bisamido and Half-Sandwich Amido Complexes with Pendant Aminoborane Groups: Vinyl Insertion vs Ring-Opening Metathesis Polymerization. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guangjuan Xu
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Gurram Venkata Narayana
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Maria Speiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Dongren Wang
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Yuanlin Zou
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
- Institute of Textile Chemistry and Chemical Fibers; Körschtalstrasse 26 D-73770 Denkendorf Germany
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25
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Ciftci M, Batat P, Demirel AL, Xu G, Buchmeiser M, Yagci Y. Visible Light-Induced Grafting from Polyolefins. Macromolecules 2013. [DOI: 10.1021/ma401431h] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Mustafa Ciftci
- Department of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
| | - Pınar Batat
- Koc University, Chemistry Department, Rumelifeneri Yolu,
Sariyer,TR-34450, Istanbul,
Turkey
| | - A. Levent Demirel
- Koc University, Chemistry Department, Rumelifeneri Yolu,
Sariyer,TR-34450, Istanbul,
Turkey
| | - Guangjuan Xu
- Institute of Polymer
Chemistry, University of Stuttgart, Pfaffenwaldring
55, 70569,
Stuttgart, Germany
| | - Michael Buchmeiser
- Institute of Polymer
Chemistry, University of Stuttgart, Pfaffenwaldring
55, 70569,
Stuttgart, Germany
- Institute of Textile Chemistry and Chemical Fibers, Körschtalstr.
26, D-73770 Denkendorf, Germany
| | - Yusuf Yagci
- Department of Chemistry, Istanbul Technical University, Maslak, TR-34469, Istanbul,
Turkey
- Center of Excellence for Advanced
Materials Research (CEAMR) and Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, 21589,
Saudi Arabia
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