Functionalized Nanoporous Thin Films and Fibers from Photocleavable Block Copolymers Featuring Activated Esters

被引：69

作者：

Zhao, Hui ^{[1
]}

Gu, Weiyin ^{[2
]}

Thielke, Michael W. ^{[1
]}

Sterner, Elizabeth ^{[2
]}

Tsai, Tsunghan ^{[2
]}

Russell, Thomas P. ^{[2
]}

Coughlin, E. Bryan ^{[2
]}

Theato, Patrick ^{[1
]}

机构：

[1] Univ Hamburg, Inst Tech & Macromol Chem, D-20146 Hamburg, Germany

[2] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA

来源：

MACROMOLECULES | 2013年 / 46卷 / 13期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

POLYMER; MEMBRANES; FILTRATION; NANOCOMPOSITES; DIFFUSION; TRANSPORT; HYDROGEN; METHANE; ROUTE;

D O I：

10.1021/ma400659h

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of poly(pentafluorophenyl (methyl)acrylates)-block-poly-(ethylene oxide) with o-nitrobenzyl ester photocleavable junctions (PPFP(M)A-hv-PEO) were synthesized by RAFT polymerization. The block copolymers were used to fabricate thin films and fibers by spin-coating and electrospinning, respectively. After solvent annealing, UV exposure, and washing with methanol/water to remove the minor PEO block, nanoporous structures were obtained. Both the porous thin films and fibers remained reactive to amine substitution of the pentafluorophenyl esters under mild conditions, which was confirmed by XPS, fluorescence confocal microscopy, FT-IR, and contact angle measurements.

引用

页码：5195 / 5201

页数：7

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