Electrical and morphological characterization of poly (monosubstituted)acetylene based membranes: application as humidity and organic vapors sensors

被引：28
作者：
Fratoddi, I
Altamura, P
Bearzotti, A
Furlani, A
Russo, MV
机构：
[1] Univ Roma La Sapienza, Dept Chem, I-00185 Rome, Italy
[2] PSM, CNR, Res Area Tor Vergata, I-00133 Rome, Italy
来源：
THIN SOLID FILMS | 2004年 / 458卷 / 1-2期
关键词：
polymers; sensors;
D O I：
10.1016/j.tsf.2003.12.065
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The responses of resistive-type sensors based on two poly (monosubstituted)acetylenes, namely poly (N,N-dimethylpropargylamine) (Pd-PDMPA) and poly(propargylalcohol) (PPOH), to relative humidity (r.h.%) and to alcohol vapors were investigated. The polymeric materials Pd-PDMPA and PPOH were doped with HCl or with SnCl2 and I-2, respectively. HCl-doped Pd-PDMPA exhibited detectable response to r.h. percentages as low as 2% and a variation of five orders of magnitude in the r.h. range 0-90%. PPOH doped with SnCl, or 12 varied its conductivity of about four orders of magnitude in the full range of r.h. Both doped polymers showed sensitivity to methanol. A morphological characterization was carried out in order to correlate the differences in the electrical behavior. (C) 2003 Elsevier B.V. All rights reserved.
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页码：292 / 298
页数：7
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