文献类型：期刊文献

英文题名：Synthesis and self-assembly of a novel fluorinated triphilic block copolymer

作者：Li, Xinxin[1];Yang, Yanhua[1];Li, Guojun[1];Lin, Shaoliang[1,2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2014

卷号：5

期号：15

起止页码：4553

外文期刊名：POLYMER CHEMISTRY

收录：;EI(收录号：20142817928726);WOS:【SCI-EXPANDED(收录号:WOS:000339044000018)】；

基金：This work was supported by National Natural Science Foundation of China (51103044). Support from Projects of Shanghai Municipality (11QA1401600, 12JC1403102 and 13ZZ041) and Fundamental Research Funds for the Central Universities (20100074120001, NCET-12-0857 and WD1213002) is also appreciated.

语种：英文

外文关键词：Chains - Dimethylformamide - High resolution transmission electron microscopy - Esters - Light scattering - Light transmission - Self assembly

摘要：A novel fluorinated diblock tercopolymer was synthesized by the reversible addition fragmentation chain transfer method, incorporating methacrylic acid, methyl methacrylate, and perfluoroalkyl ethyl methylacrylate blocks as hydrophilic, lipophilic, and fluorophilic units, respectively. Depending upon the specific triphilic balance, under control solution conditions, the block copolymer self-assembled in dimethylformamide/water dispersions induced an evolution from spheres to wormlike structures, and finally to novel nail-shaped structures, as verified by transmission electron microscopy and dynamic light scattering. The control mechanism is explained in terms of the effect of each property on the forces that govern the formation of any given morphology, namely the core-chain stretching, strong incompatibility between the lipophilic blocks and the fluorophilic blocks, and interfacial tension.