研究简报

ABC三嵌段共聚物的聚合诱导自组装研究

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  • 华东理工大学材料科学与工程学院 上海 200237

收稿日期: 2016-05-14

  修回日期: 2016-05-22

  网络出版日期: 2016-05-24

基金资助

国家自然科学基金(Nos.51573046、51622301)、中央高校基本科研专项资金(Nos.B14018、WD1213002)、上海市曙光学者计划(No.14SG29)资助项目.

Polymerization-Induced Self-Assembly of ABC Triblock Copolymer

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  • School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237

Received date: 2016-05-14

  Revised date: 2016-05-22

  Online published: 2016-05-24

Supported by

Project supported by the National Natural Science Foundation of China (Nos.51573046, 51622301), the Fundamental Research Funds for the Central Universities (Nos.B14018, WD1213002) and the Project of Shanghai Municipality (No.14SG29).

摘要

聚合诱导自组装(PISA)是一种在高浓度溶液中可连续大量制备纳米材料的新技术,结合计算模拟方法,研究其动力学过程可强化对PISA的认识和调控.通过耗散粒子动力学(DPD)模拟,研究了ABC三嵌段共聚物的聚合诱导自组装过程.先利用亲溶剂A链段引发B单体聚合,随着疏溶剂B链段的增长,AB二嵌段共聚物可组装并发生聚集体结构的连续转变,由球形胶束→蠕虫状胶束→层状结构→囊泡.再将C单体逐步聚合到AB共聚物上,调控C链段的亲疏溶剂性,可聚合诱导组装或解组装形成不同的ABC三嵌段共聚物聚集体.

本文引用格式

黄锋, 徐鹏翔, 吕翌晟, 林绍梁 . ABC三嵌段共聚物的聚合诱导自组装研究[J]. 有机化学, 2016 , 36(9) : 2220 -2224 . DOI: 10.6023/cjoc201605023

Abstract

Polymerization-induced self-assembly (PISA) is a new robust strategy to produce concentrated dispersions of block copolymer nano-objects. Insight into the dynamic process can promote the development of PISA by computer simulations. In this work, dissipative particle dynamics simulations (DPD) with a reaction model were employed to investigate the PISA behavior of ABC triblock copolymer. The polymerization of solvophobic B block was firstly performed using solvophilic macromolecular initiator A to fabricate AB copolymer. The continuous morphology transition from spherical micelle to wormlike micelle, to lamellae and finally to vesicle was observed during the process. Then, the polymerization of C block was further carried out and induced the different ABC triblock copolymer aggregates by tuning the interaction between C block and solvent (solvophobic or solvophilic).

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