Use of compatible polymer blends to fabricate arrays of carbon black-polymer composite vapor detectors

被引：80

作者：

Doleman, BJ ^{[1
]}

Sanner, RD ^{[1
]}

Severin, EJ ^{[1
]}

Grubbs, RH ^{[1
]}

Lewis, NS ^{[1
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

ANALYTICAL CHEMISTRY | 1998年 / 70卷 / 13期

关键词：

D O I：

10.1021/ac971238h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Compatible blends of poly(vinyl acetate) and poly(methyl methacrylate) have been used to produce a series of electrically conducting carbon black composites whose resistance is sensitive to the nature and concentration of an analyte in the vapor phase. The dc electrical resistance response of the composites was found to be a nonlinear function of the mole fraction of poly(vinyl acetate) in the blend. These compatible blend composite detectors provided additional analyte discrimination information relative to a reference detector array that only contained composites formed using the pure polymer phases. The added discrimination power provided by the compatible blend detectors, and thus the added diversity of the enhanced detector array, was quantified through use of a statistical metric to assess the performance of detector arrays in various vapor classification tasks.

引用

页码：2560 / 2564

页数：5

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