Humidity sensitive properties of alkoxysilane-crosslinked polyelectrolyte using sol-gel process

被引：35

作者：

Lee, CW

Choi, BK

Gong, MS ^{[1
]}

机构：

[1] Dankook Univ, Dept Chem, Cheonan 330714, Chungnam, South Korea

[2] Dankook Univ, Dept Appl Phys, Seoul 140714, South Korea

来源：

ANALYST | 2004年 / 129卷 / 07期

关键词：

D O I：

10.1039/b404334k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

New trialkoxysilyl group-containing copolymers for humidity-sensitive polyelectrolytes were prepared by copolymerization of [2-(methacryloyloxy) ethyl] trimethyl ammonium chloride (METAC), 3-(trimethoxysilyl) propyl methacrylate (TSPM) and 2-ethylhexyl acrylate (2-EHA). They were self-crosslinkable copolymers composed of different contents of METAC/TSPM/2-EHA = 4/1/ 5 and 4/2/4. The resistance varied from 10(7) to 10(3) Omega between 20% RH and 95% RH, which was required for a humidity sensor operating at ambient humidity. Temperature dependence, hysteresis, response time, water durability and long-term stability at high temperature and humidity were also measured and estimated.

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收藏

页码：651 / 656

页数：6

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