文献类型：期刊文献

英文题名：Self-Assembly of Rod-Coil Block Copolymers on Carbon Nanotubes: A Route toward Diverse Surface Nanostructures

作者：Han, Yang[1];Cai, Chunhua[1];Lin, Jiaping[1];Gong, Shuting[1];Xu, Wenheng[1];Hu, Rui[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, State Key Lab Bioreactor Engn,Minist Educ, Key Lab Ultrafine Mat,Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：39

期号：10

外文期刊名：MACROMOLECULAR RAPID COMMUNICATIONS

收录：;EI(收录号：20181605028931);WOS:【SCI-EXPANDED(收录号:WOS:000434152400009)】；

基金：This work was supported by the National Natural Science Foundation of China (51573049 and 21474029). Support from the Project of Shanghai Municipality (15QA1401400) and Fundamental Research Funds for the Central Universities (222201717021) is also appreciated.

语种：英文

外文关键词：aqueous dispersion; carbon nanotube; rod-coil block copolymer; self-assembly; surface nanostructure

摘要：In this work, it is reported that poly(-benzyl-l-glutamate)-block-poly(ethylene glycol) (PBLG-b-PEG) rod-coil block copolymers (BCPs) can disperse carbon nanotubes (CNTs) in solution and form various surface nanostructures on the CNTs via solution self-assembly. In an organic solvent that dissolves the BCPs, the PBLG rod blocks adsorb on CNT surfaces, and the BCPs form conformal coatings. Then, by the introduction of water, a selective solvent for PEG blocks, the BCPs in the coatings further self-assemble into diverse surface nanostructures, such as helices (left-handed or right-handed), gyros, spheres, and rings. The morphology of the surface nanostructure can be tailored by initial organic solvent composition, preparation temperature, feeding ratio of BCPs to CNTs, degree of polymerization of PBLG blocks, and diameter of the CNTs.