Phosphonic acid-functionalized hollow silica spheres by nitroxide mediated polymerization

被引：10

作者：

Pu, Hongting ^{[1
]}

Pan, Haiyan ^{[1
]}

Qin, Yujie ^{[1
]}

Wan, Decheng ^{[1
]}

Yuan, Junjie ^{[1
]}

机构：

[1] Tongji Univ, Inst Funct Polymers, Sch Mat Sci & Engn, Shanghai 200092, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 13期

关键词：

Hollow silica spheres; Nanoparticles; Poly(vinylbenzyl phosphonic acid); P-VINYLBENZYL PHOSPHONATE; RADICAL POLYMERIZATION; PROTON; MEMBRANES; POLYMERS; WATER;

D O I：

10.1016/j.matlet.2010.04.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new strategy to prepare phosphonic acid-functionalized hollow silica spheres is proposed via nitroxide mediated polymerization of diisopropyl p-vinylbenzyl phosphonate on the surface of hollow silica spheres (HSSs) and hydrolysis thereafter The thickness of the organic layer of PVBPA can be controlled by the quantity of the monomers The structure and morphology of poly(vinylbenzyl phosphonic acid) (PVBPA) grafted HSSs (HPSSs) are confirmed by FUR and TEM. The addition of HPSS in PVBPA membranes can improve the water retentivity of the composite membranes The composite membranes with HPSSs exhibit higher water uptake and proton conductivity than the pure PVBPA membranes (C) 2010 Elsevier B V All rights reserved

引用

页码：1510 / 1512

页数：3

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