Chain Flexibility and Connectivity: The Uniqueness of Polymer Crystallization

Liang-Bin Li

doi:10.1007/s10118-022-2804-3

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Chain Flexibility and Connectivity: The Uniqueness of Polymer Crystallization

REVIEW | Updated：2022-12-19

- Chain Flexibility and Connectivity: The Uniqueness of Polymer Crystallization
- Chinese Journal of Polymer Science Vol. 41, Issue 1, Pages: 7-13(2023)
- Affiliations：
  
  National Synchrotron Radiation Laboratory, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  lbli@ustc.edu.cn
- Funds：
- DOI：10.1007/s10118-022-2804-3
  CLC：
- Received：27 April 2022，
  
  Revised：2022-5-9，
  
  Accepted：19 May 2022，
  
  Online First：25 August 2022，
  
  Published：01 January 2023
- Accepted：
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Li, L. B. Chain flexibility and connectivity: the uniqueness of polymer crystallization. Chinese J. Polym. Sci. 2023, 41, 7–13

Liang-Bin Li. Chain Flexibility and Connectivity: The Uniqueness of Polymer Crystallization[J]. Chinese Journal of Polymer Science, 2023, 41(1): 7-13.
Li, L. B. Chain flexibility and connectivity: the uniqueness of polymer crystallization. Chinese J. Polym. Sci. 2023, 41, 7–13 DOI： 10.1007/s10118-022-2804-3.

Liang-Bin Li. Chain Flexibility and Connectivity: The Uniqueness of Polymer Crystallization[J]. Chinese Journal of Polymer Science, 2023, 41(1): 7-13. DOI： 10.1007/s10118-022-2804-3.

摘要

Chain flexibility and connectivity are two peculiar characteristics of polymers. For chain connectivity

entanglement free energy theory makes a step forward in bridging crystallization with entanglement network. How entanglement affect nucleation in polymer network and why interlamellar amorphous layer always accompany the formation of crystal layer may be better understood.

Abstract

Theory of polymer crystallization is listed as one of the top ten current challenges in polymer community. Clarifying the uniqueness of polymer crystallization should be the first step to search for the roadmap for targeting this challenge. Chain flexibility and connectivity are two peculiar characteristics of polymers

which differentiate their dynamics and structures from that of small molecules. The uniqueness of polymer crystallization must also stem from these two peculiar characteristics

which

however

has not been attracted significant attention. A local structure order may be essential in assisting the transformation of flexible chain to rigid segment with conformational ordering. The entanglement pressure and entanglement free energy may help to understand how entanglement affect nucleation in polymer network and why the interlamellar amorphous layer always accompany the formation of crystal layer. Some recommendations will be given for future study.

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