Humidity sensitive properties of copolymer of quaternary ammonium salt with polyether-salt complex

被引：7

作者：

Lv, Xin ^{[1
,2
]}

Li, Yang ^{[1
,2
]}

Yang, Mujie ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Minist Educ, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

POLYMERS FOR ADVANCED TECHNOLOGIES | 2009年 / 20卷 / 06期

关键词：

humidity sensitive properties; humidity sensor; polyether-salt complex; quaternary ammonium salt; copolymerization; POLY(CHLOROMETHYL STYRENE); POLY(ETHYLENE OXIDE); SENSOR; POLYELECTROLYTES; METHACRYLATE); POLYMERS; FILMS;

D O I：

10.1002/pat.1373

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Quaternized and salt-doped copolymer of 2-(dimethylamino) ethyl methacrylate (DMAEMA) with poly(ethylene glycol) methyl ether methacrylate (PEGMEMA) was used to prepare resistive thin film humidity sensors. Their humidity sensitive properties have been characterized. The effects of the proportion of the comonomer and the amount of doped salt on the humidity sensitive properties of quaternized and salt-doped copolymer have been investigated. The humidity sensitive mechanisms of two different monomer structural units in the copolymer were discussed. The sensors based on the copolymers with different proportions of the comonomers exhibit a variety of conductivity and sensitivity for different humidities. Especially, the sensors exhibit high conductivity even at very low humidity. It is proposed that the good humidity sensitive properties are related to the introduction of salt-doped PEGMEMA in the copolymer. Copyright (C) 2009 John Wiley & Sons, Ltd.

引用

页码：509 / 513

页数：5

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