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Di Sacco F, de Jong L, Pelras T, Portale G. Confined crystallization and polymorphism in iPP thin films. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Shang Z, Yan Y, Jiang J, Wang J, Yin X. Facile fabrication of silk fibroin/graphene oxide composite films and real‐time morphological observation in stretching. J Appl Polym Sci 2021. [DOI: 10.1002/app.51403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Zihan Shang
- College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai China
| | - Yinan Yan
- College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai China
- Nanobiological Medicine Laboratory National Engineering Research Centre for Nanotechnology Shanghai China
| | - Jie Jiang
- Nanobiological Medicine Laboratory National Engineering Research Centre for Nanotechnology Shanghai China
| | - Jielin Wang
- School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai China
| | - Xiaoying Yin
- College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai China
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3
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Li XY, Ding JJ, Liu YP, Tian XY. A new small-angle X-ray scattering model for polymer spherulites with a limited lateral size of the lamellar crystals. IUCrJ 2019; 6:968-983. [PMID: 31576229 PMCID: PMC6760438 DOI: 10.1107/s2052252519011035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
As is well known, polymers commonly form lamellar crystals, and these assemble further into lamellar stacks and spherulites during quiescent crystallization. Fifty years ago, Vonk and Kortleve constructed the classical small-angle X-ray scattering theory (SAXS) for a lamellar system, in which it was assumed that the lamellar stack had an infinite lateral size [Vonk & Kortleve (1967 ▸), Kolloid Z. Z. Polym. 220, 19-24]. Under this assumption, only crystal planes satisfying the Bragg condition can form strong scattering, and the scattering from the lamellar stack arises from the difference between the scattering intensities in the amorphous and crystalline layers, induced by the incident X-ray beam. This assumption is now deemed unreasonable. In a real polymer spherulite, the lamellar crystal commonly has dimensions of only a few hundred nanometres. At such a limited lateral size, lamellar stacks in a broad orientation have similar scattering, so interference between these lamellar stacks must be considered. Scattering from lamellar stacks parallel to the incident X-ray beam also needs to be considered when total reflection occurs. In this study, various scattering contributions from lamellar stacks in a spherulite are determined. It is found that, for a limited lateral size, the scattering induced by the incident X-ray beam is not the main origin of SAXS. It forms double peaks, which are not observed in real scattering because of destructive interference between the lamellar stacks. The scattering induced by the evanescent wave is the main origin. It can form a similar interference pattern to that observed in a real SAXS measurement: a Guinier region in the small-q range, a signal region in the intermediate-q range and a Porod region in the high-q range. It is estimated that, to avoid destructive interference, the lateral size needs to be greater than 11 µm, which cannot be satisfied in a real lamellar system. Therefore, SAXS in a real polymer system arises largely from the scattering induced by the evanescent wave. Evidence for the existence of the evanescent wave was identified in the scattering of isotactic polypropyl-ene. This study corrects a long-term misunderstanding of SAXS in a polymer lamellar system.
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Affiliation(s)
- Xiang-Yang Li
- Institute of Applied Technology, CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230088, People’s Republic of China
| | - Jian-Jun Ding
- Institute of Applied Technology, CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230088, People’s Republic of China
| | - Yan-Ping Liu
- National Center for International Research of Micro–Nano Molding Technology and Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou 450002, People’s Republic of China
| | - Xing-You Tian
- Institute of Applied Technology, CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230088, People’s Republic of China
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Niyom Y, Phakkeeree T, Flood A, Crespy D. Synergy between polymer crystallinity and nanoparticles size for payloads release. J Colloid Interface Sci 2019; 550:139-146. [DOI: 10.1016/j.jcis.2019.04.085] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 11/29/2022]
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Zhang R, Zhuravlev E, Androsch R, Schick C. Visualization of Polymer Crystallization by In Situ Combination of Atomic Force Microscopy and Fast Scanning Calorimetry. Polymers (Basel) 2019; 11:E890. [PMID: 31096647 PMCID: PMC6572680 DOI: 10.3390/polym11050890] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 11/16/2022] Open
Abstract
A chip-based fast scanning calorimeter (FSC) is used as a fast hot-stage in an atomic force microscope (AFM). This way, the morphology of materials with a resolution from micrometers to nanometers after fast thermal treatments becomes accessible. An FSC can treat the sample isothermally or at heating and cooling rates up to 1 MK/s. The short response time of the FSC in the order of milliseconds enables rapid changes from scanning to isothermal modes and vice versa. Additionally, FSC provides crystallization/melting curves of the sample just imaged by AFM. We describe a combined AFM-FSC device, where the AFM sample holder is replaced by the FSC chip-sensor. The sample can be repeatedly annealed at pre-defined temperatures and times and the AFM images can be taken from exactly the same spot of the sample. The AFM-FSC combination is used for the investigation of crystallization of polyamide 66 (PA 66), poly(ether ether ketone) (PEEK), poly(butylene terephthalate) (PBT) and poly(ε-caprolactone) (PCL).
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Affiliation(s)
- Rui Zhang
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
| | - Evgeny Zhuravlev
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Key Laboratory of High-Performance Polymer Materials and Technology of Ministry of Education, and The State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China.
- Shenyang Research Institute, Nanjing University, Shenyang 224300, China.
| | - René Androsch
- Interdisciplinary Center for Transfer-oriented Research in Natural Sciences (IWE TFN), Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany.
| | - Christoph Schick
- Institute of Physics and Competence Centre CALOR, University of Rostock, 18051 Rostock, Germany.
- Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia.
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Affiliation(s)
| | | | | | - Hui Zhang
- College of Materials Science and Engineering, Donghua University, 201620 Shanghai, China
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Samanta P, Srivastava R, Nandan B. Block copolymer compatibilization driven frustrated crystallization in electrospun nanofibers of polystyrene/poly(ethylene oxide) blends. RSC Adv 2018; 8:17989-18007. [PMID: 35542103 PMCID: PMC9080552 DOI: 10.1039/c8ra02391c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/08/2018] [Indexed: 11/21/2022] Open
Abstract
The confined crystallization behaviour of poly(ethylene oxide) (PEO) has been studied in electrospun nanofibers of the phase-separated blends of polystyrene (PS) and PEO compatibilized with polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer. The PS was present as the majority component such that the electrospun nanofibers consisted of PEO domains dispersed in the PS matrix. The phase separation in the blend occurred under the radial constraint of the nanofibers which led to the formation of small-sized fibrillar PEO domains. The use of block copolymer compatibilizer resulted in a noticeable decrease in the PEO domain size in the as-spun nanofibers. Moreover, the decrease in the domain size and domain connectivity was more substantial in the thermally annealed blend nanofibers due to the suppression of the domain coalescence mechanism resulting from the localization of the PS-b-PEO block copolymer at the interface. Consequently, the fraction of PEO domains crystallizing via homogeneous nucleation increased in the compatibilized blend nanofibers due to the presence of higher number of heterogeneity free PEO domains and disruption in their spatial connectivity. Interestingly, in the compatibilized blend nanofibers consisting of low molecular weight PEO, additional crystallization event attributed to surface nucleation was observed. The surface nucleation, plausibly, resulted from the formation of wet-brush structures where the PEO homopolymers homogeneously wet the PEO blocks present at the interface. In such a scenario, the PEO crystallization occurred via surface nucleation at the domain interface. The surface nucleated crystallization was absent in the compatibilized blend nanofibers composed of high molecular weight PEO presumably due to the formation of morphology with dry-brush structures. Confined crystallization behaviour of poly(ethylene oxide) (PEO) was studied in electrospun nanofibers of the phase-separated blends of polystyrene (PS) and PEO compatibilized with polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer.![]()
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Affiliation(s)
- Pratick Samanta
- Department of Textile Technology, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Rajiv Srivastava
- Department of Textile Technology, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Bhanu Nandan
- Department of Textile Technology, Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
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8
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Wang Z, Dong X, Liu G, Xing Q, Cavallo D, Jiang Q, Müller AJ, Wang D. Interfacial nucleation in iPP/PB-1 blends promotes the formation of polybutene-1 trigonal crystals. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.078] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Shi G, Liu G, Su C, Chen H, Chen Y, Su Y, Müller AJ, Wang D. Reexamining the Crystallization of Poly(ε-caprolactone) and Isotactic Polypropylene under Hard Confinement: Nucleation and Orientation. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02284] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Guangyu Shi
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Guoming Liu
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Cui Su
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haiming Chen
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Chen
- Institute
of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yunlan Su
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Alejandro J. Müller
- POLYMAT
and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque
Foundation for Science, Bilbao, Spain
| | - Dujin Wang
- CAS
Key Laboratory of Engineering Plastics, CAS Research/Education Center
for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of
Chinese Academy of Sciences, Beijing 100049, P. R. China
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10
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Abstract
The pathway of crystal nucleation significantly influences the structure and properties of semi-crystalline polymers. Crystal nucleation is normally heterogeneous at low supercooling, and homogeneous at high supercooling, of the polymer melt. Homogeneous nucleation in bulk polymers has been, so far, hardly accessible experimentally, and was even doubted to occur at all. This topical review summarizes experimental findings on homogeneous crystal nucleation in polymers. Recently developed fast scanning calorimetry, with cooling and heating rates up to 106 K s-1, allows for detailed investigations of nucleation near and even below the glass transition temperature, including analysis of nuclei stability. As for other materials, the maximum homogeneous nucleation rate for polymers is located close to the glass transition temperature. In the experiments discussed here, it is shown that polymer nucleation is homogeneous at such temperatures. Homogeneous nucleation in polymers is discussed in the framework of the classical nucleation theory. The majority of our observations are consistent with the theory. The discrepancies may guide further research, particularly experiments to progress theoretical development. Progress in the understanding of homogeneous nucleation is much needed, since most of the modelling approaches dealing with polymer crystallization exclusively consider homogeneous nucleation. This is also the basis for advancing theoretical approaches to the much more complex phenomena governing heterogeneous nucleation.
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Affiliation(s)
- C Schick
- Institute of Physics, University of Rostock, Albert-Einstein-Str. 23-24, 18051 Rostock, Germany. Faculty of Interdisciplinary Research, Competence Centre CALOR, University of Rostock, Albert-Einstein-Str. 25, 18051 Rostock, Germany. Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
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Kato R, Nakagawa S, Marubayashi H, Nojima S. Isothermal Crystallization Kinetics of Poly(ε-caprolactone) Blocks Confined in Cylindrical Microdomain Structures as a Function of Confinement Size and Molecular Weight. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00877] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ryota Kato
- Department
of Organic and Polymeric Materials and ‡Department of Chemical Science
and Engineering, Tokyo Institute of Technology, H-125, 2-12-1 Ookayama Meguro-Ku, Tokyo 152-8552, Japan
| | - Shintaro Nakagawa
- Department
of Organic and Polymeric Materials and ‡Department of Chemical Science
and Engineering, Tokyo Institute of Technology, H-125, 2-12-1 Ookayama Meguro-Ku, Tokyo 152-8552, Japan
| | - Hironori Marubayashi
- Department
of Organic and Polymeric Materials and ‡Department of Chemical Science
and Engineering, Tokyo Institute of Technology, H-125, 2-12-1 Ookayama Meguro-Ku, Tokyo 152-8552, Japan
| | - Shuichi Nojima
- Department
of Organic and Polymeric Materials and ‡Department of Chemical Science
and Engineering, Tokyo Institute of Technology, H-125, 2-12-1 Ookayama Meguro-Ku, Tokyo 152-8552, Japan
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12
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13
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14
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Feng S, Chen Y, Meng C, Mai B, Wu Q, Gao H, Liang G, Zhu F. Study on the condensed state physics of poly( ε -caprolactone) nano-aggregates in aqueous dispersions. J Colloid Interface Sci 2015; 450:264-71. [DOI: 10.1016/j.jcis.2015.03.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/11/2015] [Accepted: 03/11/2015] [Indexed: 11/17/2022]
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15
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Guan Y, Liu G, Ding G, Yang T, Müller AJ, Wang D. Enhanced Crystallization from the Glassy State of Poly(l-lactic acid) Confined in Anodic Alumina Oxide Nanopores. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00108] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Guan
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Engineering Plastics, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guoming Liu
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Engineering Plastics, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Guqiao Ding
- State Key Laboratory of Functional Materials
for Informatics, Shanghai Institute of Microsystem and Information
Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Tieying Yang
- Shanghai Synchrotron Radiation Facility,
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Alejandro J. Müller
- POLYMAT
and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE - Basque Foundation for Science, Bilbao, Spain
| | - Dujin Wang
- Beijing National Laboratory for Molecular
Sciences, CAS Key Laboratory of Engineering Plastics, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Wang J, Li Z, Pérez RA, Müller AJ, Zhang B, Grayson SM, Hu W. Comparing crystallization rates between linear and cyclic poly(epsilon-caprolactones) via fast-scan chip-calorimeter measurements. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.02.039] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Chen L, Jiang J, Wei L, Wang X, Xue G, Zhou D. Confined Nucleation and Crystallization Kinetics in Lamellar Crystalline–Amorphous Diblock Copolymer Poly(ε-caprolactone)-b-poly(4-vinylpyridine). Macromolecules 2015. [DOI: 10.1021/ma5025945] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lanlan Chen
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
| | - Jing Jiang
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
| | - Lai Wei
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
- School
of Physical Science and Technology, Xinjiang Laboratory of Phase Transitions
and Microstructures in Condensed Matters, Yili Normal University, Yining 835000, P. R. China
| | - Xiaoliang Wang
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
| | - Gi Xue
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
| | - Dongshan Zhou
- Department
of Polymer Science and Engineering, School of Chemistry and Chemical
Engineering, Key Laboratory of High Performance Polymer Materials
and Technology, MOE, State Key Laboratory of Co-ordination Chemistry,Nanjing University, Nanjing 210093, P. R. China
- School
of Physical Science and Technology, Xinjiang Laboratory of Phase Transitions
and Microstructures in Condensed Matters, Yili Normal University, Yining 835000, P. R. China
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Zhao JC, Xing B, Peng Z, Zhang JM. A real-time AFM study on crystal nucleation and growth in nanodroplets of isotactic polypropylene. Chin J Polym Sci 2013. [DOI: 10.1007/s10118-013-1330-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu R, Li ZY, Mai BY, Wu Q, Liang GD, Gao HY, Zhu FM. Crystalline-coil diblock copolymers of syndiotactic polypropylene-b- poly(ethylene oxide): synthesis, solution self-assembly, and confined crystallization in nanosized micelle cores. J Polym Res 2013. [DOI: 10.1007/s10965-012-0064-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhao J, Wang Z, Niu Y, Hsiao BS, Piccarolo S. Phase Transitions in Prequenched Mesomorphic Isotactic Polypropylene during Heating and Annealing Processes As Revealed by Simultaneous Synchrotron SAXS and WAXD Technique. J Phys Chem B 2011; 116:147-53. [DOI: 10.1021/jp210499d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junchai Zhao
- School of Material Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, P. R. China
| | - Zhigang Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui Province 230026, P. R. China
| | - Yanhua Niu
- National Institute of Clean-and-Low-Carbon Energy, Beijing, 100011, P. R. China
| | - Benjamin S. Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Stefano Piccarolo
- Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università degli Studi di Palermo, Viale delle Scienze Ed.6 90128 Palermo, Italy
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Córdova ME, Lorenzo AT, Müller AJ, Gani L, Tencé-Girault S, Leibler L. The Influence of Blend Morphology (Co-Continuous or Sub-Micrometer Droplets Dispersions) on the Nucleation and Crystallization Kinetics of Double Crystalline Polyethylene/Polyamide Blends Prepared by Reactive Extrusion. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100039] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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24
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Zhang G, Cao Y, Jin L, Zheng P, Van Horn RM, Lotz B, Cheng SZ, Wang W. Crystal growth pattern changes in low molecular weight poly(ethylene oxide) ultrathin films. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.01.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cavallo D, Portale G, Balzano L, Azzurri F, Bras W, Peters GW, Alfonso GC. Real-Time WAXD Detection of Mesophase Development during Quenching of Propene/Ethylene Copolymers. Macromolecules 2010. [DOI: 10.1021/ma1022499] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dario Cavallo
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy
| | - Giuseppe Portale
- Netherlands Organization for Scientific Research (NWO) DUBBLE CRG, European Synchrotron Radiation Facility, BP 220, F-38043, Grenoble Cedex, France
| | - Luigi Balzano
- Department of Mechanical Engineering, Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Fiorenza Azzurri
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy
| | - Wim Bras
- Netherlands Organization for Scientific Research (NWO) DUBBLE CRG, European Synchrotron Radiation Facility, BP 220, F-38043, Grenoble Cedex, France
| | - Gerrit W. Peters
- Department of Mechanical Engineering, Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Giovanni C. Alfonso
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso, 31-16146 Genova, Italy
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Chen R, Li L, Zhao J. Single chain diffusion of poly(ethylene oxide) in its monolayers before and after crystallization. Langmuir 2010; 26:5951-5956. [PMID: 20039653 DOI: 10.1021/la903897v] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Lateral diffusion of single chain related to the crystallization process of poly(ethylene oxide) (PEO) in its monolayers on silica surfaces is studied by single molecule fluorescence microscopy and single molecule tracking techniques. Diffusion of PEO chains is observed in the supercooled state before crystallization as well as in the noncrystalline regions after crystallization. In the postcrystallization monolayers, the diffusion coefficient of PEO chains is an order of magnitude lower than that in the supercooled state before crystallization. The origin is attributed to the change of polymer surface concentration due to the consumption of polymer molecules in the crystal formation. This is supported by the results showing a monotonous decrease of diffusion coefficient with the thickness decrease of the monolayer in its supercooled state. The PEO chains take a more flattened conformation under lower surface concentration and stick stronger to the surface. As a consequence, the diffusion rate is reduced. The results clearly demonstrate a strong mutual effect between the crystallization process and the mass transportation for the polymer crystallization under surface confinement.
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Affiliation(s)
- Rui Chen
- Beijing Laboratory of Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Oliani W, Lima L, Parra D, Dias D, Lugão A. Study of the morphology, thermal and mechanical properties of irradiated isotactic polypropylene films. Radiat Phys Chem Oxf Engl 1993 2010. [DOI: 10.1016/j.radphyschem.2009.08.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jiang K, Xie B, Fu D, Luo F, Liu G, Su Y, Wang D. Solid−Solid Phase Transition of n-Alkanes in Multiple Nanoscale Confinement. J Phys Chem B 2009; 114:1388-92. [DOI: 10.1021/jp9111475] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Baoquan Xie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Dongsheng Fu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Faliang Luo
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Guoming Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yunlan Su
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Dujin Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China, and Graduate School of Chinese Academy of Sciences, Beijing 100190, P. R. China
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Li Y, Dong M, Otzen DE, Yao Y, Liu B, Besenbacher F, Mamdouh W. Influence of tunable external stimuli on the self-assembly of guanosine supramolecular nanostructures studied by atomic force microscope. Langmuir 2009; 25:13432-13437. [PMID: 19499943 DOI: 10.1021/la900640f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The self-assembly of guanosine (G) molecules on solid surfaces is investigated by tapping-mode atomic force microscopy (AFM) upon controlling and introducing external factors (stimuli) to the G stock solution such as incubation time, presence/absence of metal cations, and mechanical shaking. Surprisingly, at different stages of incubation time at room temperature and in the absence of any metal cations in the G stock solution, which are known to be one of the governing factors in forming G-nanostructures, two assembly pathways resulting into two distinct supramolecular nanostructures were revealed. Astonishingly, by introducing a mechanical shaking of the tube containing the G stock solution, one-dimensional (1D) wires of G molecules are observed by AFM, and very interestingly, novel "branched" supramolecular nanostructures are formed. We have also observed that the later branched G nanostructures can grow further into a two-dimensional (2D) thin film by increasing the incubation time of the G stock solution at room temperature after it is exposed to the external mechanical stimuli. The self-assembled nanostructures of G molecules are changed significantly by tuning the assembly conditions, which show that it is indeed possible to grow complex 2D nanostructures from simple nucleoside molecules.
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Affiliation(s)
- Yinli Li
- Institute of Photo-Biophysics, Physics and Electronics Department, Henan University, 475004, Kaifeng, China
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Zhao J, Qiu J, Niu Y, Wang Z. Evolutions of morphology and crystalline ordering upon annealing of quenched isotactic polypropylene. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21773] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kailas L, Ratcliffe E, Hayhurst E, Walker M, Foster S, Hobbs J. Immobilizing live bacteria for AFM imaging of cellular processes. Ultramicroscopy 2009; 109:775-80. [DOI: 10.1016/j.ultramic.2009.01.012] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 01/21/2009] [Accepted: 01/28/2009] [Indexed: 11/22/2022]
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Reddy KR, Tashiro K, Sakurai T, Yamaguchi N, Sasaki S, Masunaga H, Takata M. Isothermal Crystallization Behavior of Isotactic Polypropylene H/D Blends as Viewed from Time-Resolved FTIR and Synchrotron SAXS/WAXD Measurements. Macromolecules 2009. [DOI: 10.1021/ma900265u] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kummetha Raghunatha Reddy
- Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Kohji Tashiro
- Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan
| | - Takashi Sakurai
- Petrochemicals Research Laboratory, Sumitomo Chemical Co. Ltd. Kitasode, Sodegaura, Chiba 299-0295, Japan
| | - Noboru Yamaguchi
- Petrochemicals Research Laboratory, Sumitomo Chemical Co. Ltd. Kitasode, Sodegaura, Chiba 299-0295, Japan
| | - Sono Sasaki
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo-gun, Hyogo, 679-5198, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo-gun, Hyogo, 679-5198, Japan
| | - Masaki Takata
- Japan Synchrotron Radiation Research Institute (JASRI), Sayo-gun, Hyogo, 679-5198, Japan
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Hu W, Cai T, Ma Y, Hobbs JK, Farrance O, Reiter G. Polymer crystallization under nano-confinement of droplets studied by molecular simulations. Faraday Discuss 2009; 143:129-41; discussion 169-86. [DOI: 10.1039/b901378d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nojima S, Inokawa D, Kawamura T, Nitta KH. Dynamic Mechanical Study of Block Copolymer Crystallization Confined within Spherical Nanodomains. Polym J 2008. [DOI: 10.1295/polymj.pj2008139] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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