Grafting polymer nanoshell onto the exterior surface of mesoporous silica nanoparticles via surface reversible addition-fragmentation chain transfer polymerization

被引：79

作者：

Hong, Chun-Yan ^{[1
]}

Li, Xin ^{[1
]}

Pan, Cai-Yuan ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2007年 / 43卷 / 10期

基金：

中国国家自然科学基金;

关键词：

reversible addition-fragmentation chain transfer (RAFT) polymerization; mesoporous silica nanoparticle (MSN); core-shell nanostructure; polystyrene;

D O I：

10.1016/j.eurpolymj.2007.07.021

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Reversible addition-fragmentation chain transfer (RAFT) functionalities were anchored to the exterior surface of mesoporous silica nanoparticles (MSNs) without changing the mesoporous structure, RAFT polymerization of styrene was subsequently conducted to graft polystyrene (PSt) onto the exterior surface of MSNs, forming a novel core-shell nanostructure with a mesoporous core and a polymer nanoshell. Fourier transform infrared spectroscopy (FT-IR), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) were used to characterize the produced mesoporous core-shell nanostructure, the results showed that the thickness of the nanoshell increased with the increasing time of polymerization. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4114 / 4122

页数：9

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