文献类型：期刊文献

英文题名：Ordered Surface Nanostructures Self-Assembled from Rod-Coil Block Copolymers on Microspheres

作者：Xu, Wenheng[1];Xu, Zhanwen[1];Cai, Chunhua[1];Lin, Jiaping[1];Zhang, Shengmiao[1];Zhang, Liangshun[1];Lin, Shaoliang[1];Yao, Yuan[1];Qi, Huimin[1]

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

年份：2019

卷号：10

期号：20

起止页码：6375

外文期刊名：JOURNAL OF PHYSICAL CHEMISTRY LETTERS

收录：;EI(收录号：20194107528110);WOS:【SCI-EXPANDED(收录号:WOS:000492425100058)】；

基金：This work was supported by the National Natural Science Foundation of China (51573049, 51833003, 51621002, and 21975073).

语种：英文

外文关键词：Block copolymers - Microspheres - Polyethylene glycols - Nanostructures - Polystyrenes

摘要：An ordered surface nanostructure endows materials advanced functions. However, fabricating ordered surface-patterned particles via the polymer self-assembly approach is a challenge. Here we report that poly(y-benzyl-L-glutamate)-block-poly(ethylene glycol) rod-coil block copolymers are able to form uniform-surface micelles on polystyrene microspheres through a solution self-assembly approach. The size of the surface micelles can be varied by the molecular weight of the block copolymers. These surface micelles are arranged in a manner consistent with the Euler theorem. Most of the micelles are six-fold coordinated, and the number difference between the five-fold and the seven-fold coordination is 12. Simulations on model systems qualitatively reproduced the experimental findings and provided direct observations for the surface-patterned particles, including the polymer chain packing manner in surface micelles at the molecular level and the array feature of the surface micelles through 2D projections of the surface patterns.