期刊
POLYMER
卷 42, 期 21, 页码 9091-9095出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(01)00376-7
关键词
diblock copolymers; nanopores; microdomains
Asymmetric diblock copolymers of polystyrene (PS) and poly(methylmethacrylate) (PMMA), PS(S-b-MMA), having cylindrical microdomains of PMMA, are model systems to generate nanoporous thin films. With controlled interfacial interactions or applied external electric fields, the cylindrical microdomains can be oriented normal to the surface. Exposure to deep UV radiation degrades the PMMA and crosslinks the PS matrix. After rinsing with a selective solvent, a nanoporous film is obtained. By changing the molecular weight, smooth porous films with hexagonal arrays of pores having diameters ranging from 14 to 50 nm were obtained. The results show that molecular weight is a convenient, simple means of controlling pore diameter. (C) 2001 Elsevier Science Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据