Preparation of polystyrene grafted silica nanoparticles by two-steps UV induced reaction

被引：29

作者：

Liu, P ^{[1
]}

Su, ZX ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 167卷 / 2-3期

关键词：

polystyrene grafted silica nanoparticles; monomer-iniferter; surface-initiated; controlled/"living; radical polymerization; UV irradiation;

D O I：

10.1016/j.jphotochem.2004.05.030

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：

Polystyrene grafted silica nanoparticles (PSSNs) were prepared by the followed two steps: methacryloxypropyl silica nanoparticles (MPSNs) were modified with the monomer-iniferter, 4-vinylbenzyl N,N-diethyldithiocarbamate (VBDC) under UV irradiation. Then the VBDC modified silica nanoparticles (VBDCSNs) were used as iniferter for the surface-initiated (SI) controlled/"living" radical polymerization of styrene. A percentage of grafting (PG%) of 315.7% was achieved with a conversion of styrene of about 35% after 18 h UV irradiation. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：237 / 240

页数：4

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