Effect of the doping medium on blends of polyurethane and polyaniline

被引:20
作者
Malmonge, JA [1 ]
Campoli, CS
Malmonge, LF
Kanda, DHF
Mattoso, LHC
Chierice, GO
机构
[1] UNESP, Dept Quim & Fis, BR-1528500 Ilha Solteira, SP, Brazil
[2] Embrapa Instrumentacao Agropecuaria, BR-13560970 Sao Carlos, SP, Brazil
[3] USP, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
关键词
conducting polymers; polyaniline; doping; blends; polyurethane;
D O I
10.1016/S0379-6779(00)00813-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Flexible and free-standing films from blends of polyurethane, based on castor oil, and polyaniline were obtained with various compositions by casting. Significant increase on conductivity followed by a considerable decrease on doping time was obtained by doping the films in N,N-dimethylformamide (DMF) solution with p-toluene sulphonic acid (TSA) or HCl instead of the conventional doping in aqueous solution. This doping efficiency is proposed to be due to an improved swelling of the blend structure caused by the solvent. The electrical conductivity increases significantly upon polyaniline content increase reaching 10(-2) S/cm for a polyaniline content of about 10% (w/w).
引用
收藏
页码:87 / 88
页数:2
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