Zi-Xiang Dai, Zi-Yue Gao, Xiao-Kai Ye, Jian-Long Wen, Yong-Qiang Ming, Yi-Jing Nie
{"title":"Segment Miscibility Variations Dominating Stereocomplex Crystallization in Polymer Blends with Different Initial Chain Conformations","authors":"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","DOIUrl":null,"url":null,"abstract":"<div><p>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.</p></div>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":"43 9","pages":"1690 - 1698"},"PeriodicalIF":4.0000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10118-025-3387-6","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
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.
期刊介绍:
Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985.
CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.