Characterization of hybrid composite membrane based polymer/precursor/SiO2

被引：6

作者：

Thanganathan, Uma ^{[1
]}

Nishina, Yuta ^{[1
]}

Kimura, Kunio ^{[2
]}

Hayakawa, Satoshi ^{[3
]}

Bobba, Rambabu ^{[4
,5
]}

机构：

[1] Okayama Univ, RCIS, Kita Ku, Okayama 7008530, Japan

[2] Okayama Univ, Grad Sch Environm Sci, Kita Ku, Okayama 7008530, Japan

[3] Okayama Univ, Biomat Lab, Grad Sch Nat Sci & Technol, Kita Ku, Okayama 7008530, Japan

[4] Southern Univ, Dept Phys, Solid State Ion Lab, Baton Rouge, LA 70813 USA

[5] A&M Coll, Baton Rouge, LA 70813 USA

来源：

MATERIALS LETTERS | 2012年 / 81卷

关键词：

3-glycidyloxypropyltrimethoxysilane; Poly(vinylalcohol); TEOS; Proton conductivity; POLY(VINYL ALCOHOL); EXCHANGE MEMBRANES; ACID; SILICA; PERMEABILITY; SPECTROSCOPY; DEHYDRATION; CHITOSAN;

D O I：

10.1016/j.matlet.2012.04.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New class of hybrid composite was synthesized via sol-gel process with the combination of poly(vinyl alcohol) (PVA), TEOS, 3-glycidyloxypropyltrimethoxysilane (GPTMS) reacted with the cross-linking agent glutaraldehyde. The composites demonstrated a maximum high proton conductivity of 1.7 x 10(-2) S cm(-1) at 140 degrees C and a relative humidity of 50% RH. The swelling ratio was calculated in dry and wet conditions, and the composites were found capable of swelling. The structural formation of the composites was studied by techniques such as FTIR, TGA and impedance spectroscopy, and it was concluded that these PVA-SiO2/GPTMS/GA composite membranes exhibited excellent thermal, mechanical and conductivity properties. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：88 / 91

页数：4

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