聚亚甲基嵌段聚己内酯Janus微球的制备  

Preparation of Janus microspheres based on polymethylene-b-poly(ε-caprolactone)

作　　者：陈健壮[1] 王雪红[1] 支东彦[1] 杨晓玲[1] 庄启昕[1] CHEN Jian-zhuang;WANG Xue-hong;ZHI Dong-yan;YANG Xiao-ling;ZHUANG Qi-xin(National Demonstration Center for Experimental Material Education,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学材料科学与工程学院材料国家级实验教学示范中心,上海200237

出　　处：《化学工程师》2022年第8期7-9,6,共4页Chemical Engineer

基　　金：上海市自然科学基金面上项目(21ZR1415900,18ZR1408200);上海市教育系统工会理论研究课题(2021GHL037);华东理工大学2018年度本科实验实践教学改革与建设项目;大学生创新创业训练计划(S202110251057,S202110251149X,S20050,X20361)。

摘　　要：具有各向异性的聚合物Janus微球在诸多领域展现出了巨大的应用潜力,但其制备与形态调控极具挑战性。该文通过静电喷雾技术成功制备出了聚合物Janus微球。首先,通过链端含有羟基的聚亚甲基(PM-OH)引发ε-己内酯的开环聚合,制备出聚亚甲基嵌段聚己内酯(PM-b-PCL);然后,通过核磁和凝胶渗透色谱对PM-b-PCL的结构和分子量及其分布进行了表征;最后,通过静电喷雾技术制备PM-b-PCL的微球,经过实验参数的优化,成功制备出Janus微球。Anisotropic polymer Janus microspheres have shown great application potential in many fields, but their preparation and morphological manipulation are extremely challenging. In this paper, polymer Janus microspheres was successfully prepared via electrospraying technique. First, polymethylene-block-polycaprolactone(PM-b-PCL)was prepared by the ring-opening polymerization of ε-caprolactone initiated by polymethylene(PMOH) terminated with hydroxyl groups. Then, the structure, molecular weight and distribution of PM-b-PCL were characterized by1H NMR and gel permeation chromatography(GPC). Finally, Janus microspheres of PM-b-PCL were successfully fabricated by electrospraying technology through the optimization of experimental parameters.

关 键 词：静电喷雾 聚合物微球 自组装 嵌段共聚物 

分 类 号：G643.0[文化科学—高等教育学]