Confined Crystallization Behaviors of Cross-linked Comb-like Copolymers

Xian-jing Gong; De-an Shi; Ying-kui Yang; Tao Jiang; Yan-feng Meng; RobertK.Y. Li; Shi-chun Jiang

doi:10.1007/s10118-016-1815-3

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Confined Crystallization Behaviors of Cross-linked Comb-like Copolymers

PAPERS | Updated：2021-05-12

- Confined Crystallization Behaviors of Cross-linked Comb-like Copolymers
- Chinese Journal of Polymer Science Vol. 34, Issue 8, Pages: 1039-1046(2016)
- Affiliations：
  
  a.School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
  b.Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Collaborative Innovation Center for Advanced Origanic Chemical Materials, Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062, China
  c.School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
  d.Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China
- Author bio：
  
  De-an Shi (施德安), E-mail: deanshi2012@yahoo.com
  Shi-chun Jiang (蒋世春), E-mail: scjiang@tju.edu.cn
- Funds：
- DOI：10.1007/s10118-016-1815-3
  CLC：
- Received：16 February 2016，
  
  Revised：2016-3-10，
  
  Accepted：10 March 2016，
  
  Published：2016-08
- Accepted：
Scan QR Code
Xian-jing Gong, De-an Shi, Ying-kui Yang, et al. Confined Crystallization Behaviors of Cross-linked Comb-like Copolymers[J]. Chinese Journal of Polymer Science, 2016, 34(8): 1039-1046.
DOI：

Xian-jing Gong, De-an Shi, Ying-kui Yang, et al. Confined Crystallization Behaviors of Cross-linked Comb-like Copolymers[J]. Chinese Journal of Polymer Science, 2016, 34(8): 1039-1046. DOI： 10.1007/s10118-016-1815-3.

摘要

Abstract

Cross-linked PEG-based copolymers were obtained

via

synthesis of polyethylene glycol (PEG) and methoxy polyethylene glycol (MPEG) by the bridging and/or cross-linking agent of 2

4-tolylene diisocyanate (TDI) and/or hexamethylene-1

6-diisocyanate homopolymer (HDI trimer). The effects on the crystallization behaviors of the samples could be found with the changes in molecular weight of MC-PEG and molecular weight of SC-PEG in certain cross-linked density. It is revealed that the samples appear not to crystallize when the molecular weight of MC-PEG and SC-PEG are 1000 g/mol or less than that. The samples begin to crystallize when the molecular weight of either MC-PEG or SC-PEG reaches 2000 g/mol. The crystallinity of crystallized MC-PEG decreases with the increasing molecular weight of uncrystallized SC-PEG and the crystallinity of crystallized SC-PEG declines with the rise of molecular weight of uncrystallizable MC-PEG. The chains of SC-PEG (

=2000 g/mol) can fold and align easilier than those of MC-PEG (

=2000 g/mol)

when the content of PEG is the same.

关键词

Keywords

references

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