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Urea sensing film prepared by extrusion from DBSA-doped poly aniline-poly (styrene-co-potassium acrylate) in a poly(n-butyl methacrylate) matrix

被引：11
作者：
Castillo-Ortega, M. M.
Del Castillo-Castro, T.
Ibarra-Bracamontes, V. J.
Nuno-Donlucas, S. M.
Puig, J. E.
Herrera-Franco, P. J.
机构：
[1] Univ Sonora, Dept Investigac Polimers & Mat, Hermosillo 83000, Sonora CP, Mexico
[2] Univ Guadalajara, CUCEI, Dept Ingn Quim, Guadalajara 44430, Jalisco, Mexico
[3] Ctr Invest Cientif Yucatan, Unit Mat, Merida 97200, Yucatan CP, Mexico
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2007年 / 125卷 / 02期
关键词：
polyaniline; composites; urea sensing film; extrusion;
D O I：
10.1016/j.snb.2007.02.049
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Films of n-dodecylbenzene sulfonic acid-doped polyaniline (PANIDBSA), poly(styrene-co-potassium acrylate) (PSAK) and poly(n-butyl methacrylate) (PBMA) were prepared by extrusion at different weight ratios. The electrical, mechanical and morphological properties of the films were studied and compared with those of films of PANIDBSA-PBMA in which the ionomer (PSAK) was not included. The PSAK incorporation improves the electrical properties, the tensile strength and the homogeneity of the films. The 50% PANIDBSA-PSAK composites showed good sensing capability toward NH3 and urea aqueous solutions. The urea sensitivity of the films was also evaluated in serum samples. The results show a good agreement with those of the standard method implemented in clinical laboratories. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：538 / 543
页数：6
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