Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations

Zi-Xiang Dai; Zi-Yue Gao; Xiao-Kai Ye; Jian-Long Wen; Yong-Qiang Ming; Yi-Jing Nie

doi:10.1007/s10118-025-3387-6

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Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations

RESEARCH ARTICLE | Updated：2025-08-25

- Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations
- Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations
- 高分子科学（英文） 2025年43卷第9期页码：1690-1698
- Affiliations：
  
  Institute of Polymer Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
- Author bio：
  
  nieyijing@ujs.edu.cn
- Funds：
  
  This study was financially supported by the National Natural Science Foundation of China (No. 52173020), the Qing Lan Project of Jiangsu Province of China (No. [2022]29) and the Jiangsu Provincial Science and Technology Plan Special Fund (No. BE2022128).
- DOI：10.1007/s10118-025-3387-6
  中图分类号：
- 收稿：2025-04-30，
  
  修回：2025-05-16，
  
  录用：2025-05-21，
  
  网络首发：2025-07-18，
  
  纸质出版：2025-09-05
- Accepted：
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Dai, Z. X.; Gao, Z. Y.; Ye, X. K.; Wen, J. L.; Ming, Y. Q.; Nie, Y. J. Segment miscibility variations dominating stereocomplex crystallization in polymer blends with different initial chain conformations. Chinese J. Polym. Sci. 2025, 43, 1690–1698

Zi-Xiang Dai, Zi-Yue Gao, Xiao-Kai Ye, et al. Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations[J]. Chinese Journal of Polymer Science, 2025, 43(9): 1690-1698.
Dai, Z. X.; Gao, Z. Y.; Ye, X. K.; Wen, J. L.; Ming, Y. Q.; Nie, Y. J. Segment miscibility variations dominating stereocomplex crystallization in polymer blends with different initial chain conformations. Chinese J. Polym. Sci. 2025, 43, 1690–1698 DOI： 10.1007/s10118-025-3387-6.

Zi-Xiang Dai, Zi-Yue Gao, Xiao-Kai Ye, et al. Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations[J]. Chinese Journal of Polymer Science, 2025, 43(9): 1690-1698. DOI： 10.1007/s10118-025-3387-6.

摘要

Based on dynamic Monte Carlo simulations

it was demonstrated that the SC fraction is closely correlated with the average mixing parameters during crystallization. In other words

the average segment miscibility in the crystallization process is the key factor controlling the formation ability of SCs.

Abstract

Understanding the mechanisms that influence the formation of stereocomplex crystals (SCs) in poly(lactic acid) (PLA) is critical for achieving effective regulation of SC content. In the current simulations

we constructed polymer blends with different initial chain conformations and then obtained four groups of polymer blend systems with similar segment miscibility but different chain extension degrees by controlling the high-temperature relaxation time. The simulation results indicate that the fraction of SCs formed in these systems is closely correlated with the average mixing parameters during the crystallization process rather than the initial chain extension degrees. In other words

the average segment miscibility in the crystallization process is the key factor controlling the formation ability of SCs.

关键词

Keywords

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