Resistive humidity sensor from copolymers containing quaternary ammonium salt (I): Three component copolymers

被引：0

作者：

Lee, Dong-Geun ^{[1
]}

Lim, Tae-Ho ^{[1
]}

Jeon, Young-Min ^{[1
]}

Gong, Myoung-Seon ^{[1
]}

机构：

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

来源：

POLYMER-KOREA | 2007年 / 31卷 / 03期

关键词：

humidity sensor; 3-component copolymers; ammonium salt; isocyanate crosslinker;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The resistive-type polymeric humidity sensors were prepared from the copolymers of [2-[(methacryloyloxy) ethyl]dimethyl]propylammonium bromide (MEPAB), [2-[(methacryloyloxy)ethyl]-2-hydroxyethyl] dimethylammonium bromide (MEHDAB), n-butyl methylacrylate (MBA), 2 hydroxyethyl methylacrylate (HEMA) and styrene. Four kinds of copolymers, ie, MEPAB/styrene/ MEHDAB, MEHDAB/BMA/HEMA., MEPAB/BMA/MEHDAB, and MEPAB/styrene/HEMA crosslinked with blocked-isocyanate on the Ag/Pd electrode/alumina substrate showed good durability at high humidities. The various electrical properties such as frequency dependency, temperature dependency, hysteresis, response time and water durability were examined. In the case of copolymer MEPAB/ BMA/MEHDAB = 3/6/1, the resistance was varied from 2.9 M Omega to 1.84k Omega at 25 degrees C in the range of 30 similar to 90%RH and this copolymers showed a good linearity and low hysteresis.

引用

页码：194 / 200

页数：7

共 38 条

[1] Bae JS, 1996, POLYM-KOREA, V20, P996
[2] Humidity-sensitive properties of gel polyelectrolyte based on cross-linked copolymers containing both ammonium salt and amine function
Gong, MS
Lee, CW
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2003, 77 (03) : 719 - 725
[3] Humidity-sensitive properties of phosphonium salt-containing polyelectrolytes
Gong, MS
Lee, CW
Joo, SW
Choi, BK
[J]. JOURNAL OF MATERIALS SCIENCE, 2002, 37 (21) : 4615 - 4620
[4] Humidity sensor using mutually reactive copolymers containing quaternary ammonium salt and reactive function
Gong, MS
Joo, SW
Choi, BK
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2002, 86 (01) : 81 - 87
[5] Humidity sensor using cross-linked polyelectrolyte prepared from mutually reactive copolymers containing phosphonium salt
Gong, MS
Park, JS
Lee, MH
Rhee, HW
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2002, 86 (2-3) : 160 - 167
[6] Humidity-sensitive properties of a cross-linked polyelectrolyte prepared from mutually reactive copolymers
Gong, MS
Joo, SW
Choi, BK
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (04) : 902 - 906
[7] Humidity sensor using cross-linked copolymers containing viologen moiety
Gong, MS
Lee, MH
Rhee, HW
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2001, 73 (2-3) : 185 - 191
[8] GONG MS, 2002, SENSOR ACTUAT B-CHEM, V88, P21
[9] HIGIKIGAWA H, 1983, SENSOR ACTUATOR, V4, P307
[10] JO JS, 1992, POLYMER, V16, P266

← 1 2 3 4 →