Preparation of cross-linked polystyrene hollow nanospheres via surface-initiated atom transfer radical polymerizations

被引：74

作者：

Fu, GD ^{[1
]}

Shang, ZH ^{[1
]}

Hong, L ^{[1
]}

Kang, ET ^{[1
]}

Neoh, KG ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore

来源：

MACROMOLECULES | 2005年 / 38卷 / 18期

关键词：

D O I：

10.1021/ma0509098

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis of cross-linked polystyrene (PS) hollow nanospheres (HN) by ultraviolet treatment of the SiO 2-g-PS-b-poly(methyl methacrylate) (PMMA) core-shell hybrids was investigated. The cross-linked PS hollow nanospheres remain unagglomerated and stable in organic solvents, such as tetrahydrofuran (THF). The cleaved PS and PS-b-PMMA from the silica surfaces were characterized by gel-permeation chromatography (GPC) and nuclear magnetic resonance (NMR) spectroscopy. It was concluded that the solvent-resistant PS hollow nanospheres are potentially useful in applications such as controlled release and enzyme immobilization and as nanoreactors.

引用

页码：7867 / 7871

页数：5

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