Alcohol vapor sensory properties of nanostructured conjugated polymers

被引：34

作者：

Bearzotti, Andrea ^{[1
]}

Macagnano, Antonella ^{[1
]}

Pantalei, Simone ^{[1
]}

Zampetti, Emiliano ^{[1
]}

Venditti, Iole

Fratoddi, Ilaria ^{[2
]}

Russo, Maria Vittoria ^{[2
]}

机构：

[1] IMM CNR, Res Area Tor Vergata, I-00133 Rome, Italy

[2] Univ Roma La Sapienza, Dept Chem, I-00189 Rome, Italy

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 47期

关键词：

D O I：

10.1088/0953-8984/20/47/474207

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The response to relative humidity (RH) and alcohol vapors of resistive-type sensors based on nanobeads of conjugated polymers, namely polyphenylacetylene (PPA) and copolymer poly[phenylacetylene-(co-2-hydroxyethyl methacrylate)] (P(PA/HEMA)), were investigated. Sensors based on ordered arrays of these nanostructured polymeric materials showed stable and reproducible current intensity variations in the range 10-90% of relative humidity at room temperature. Both polymers also showed sensitivity to aliphatic chain primary alcohols, and a fine tuning of the sensor response was obtained by varying the chain length of the alcohol in relation to the polarity. The nanostructured feature of polymeric-based membranes seems to have an effect on the sensing response and an enhancement of the sensitivity was observed for the response to water and alcohol vapor variations with respect to previous studies based on amorphous polyphenylacetylene. High stability of the polymeric nanostructured membranes was detected with no aging after two weeks in continuum stressing measurement conditions.

引用

页数：6

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