Control of pore hydrophilicity in ordered nanoporous polystyrene using an AB/AC block copolymer blending strategy

被引：42

作者：

Mao, HM ^{[1
]}

Arrechea, PL ^{[1
]}

Bailey, TS ^{[1
]}

Johnson, BJS ^{[1
]}

Hillmyer, MA ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

来源：

FARADAY DISCUSSIONS | 2005年 / 128卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1039/b403217a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ordered nanoporous plastics with hydrophilic pore surfaces were prepared by the degradative removal of polylactide from a self-organised, multi-component composite containing two block copolymers: polystyrene-polylactide and polystyrene-polyethylene oxide. The solid-state characterization of blends containing up to 12 wt.% polyethylene oxide was consistent with nanoscopic cylinders of mixed polyethylene oxide and polylactide hexagonally packed in a polystyrene matrix. Orientation of these materials through simple channel die processing resulted in good cylinder alignment. Subsequent methanolysis/ hydrolysis of the polylactide component gave nanoporous polystyrene with polyethylene oxide coated pores. The resulting nanoporous materials were able to imbibe water, in contrast to nanoporous polystyrene with no polyethylene oxide component.

引用

页码：149 / 162

页数：14

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[1] Asphalt modified by SBS triblock copolymer: Structures and properties [J].