Analysis of conducting poly(o-methoxyaniline) blends by impedance spectroscopy

被引：1
|
作者：
Machado, Wagner S.
Moreira, Jose C.
Onmori, Roberto K.
Wang, Shu H.
Soares, Demetrio A. W.
机构：
[1] Univ Fed Itajuba, Inst Exact Sci, Dept Chem & Phys, BR-37500903 Itajuba, MG, Brazil
[2] Univ Sao Paulo, Dept Met & Mat Engn, Polytech Sch, Cidade Univ, BR-05508900 Sao Paulo, Brazil
[3] Univ Sao Paulo, Dept Elect Syst Engn, Polytech Sch, BR-05508900 Sao Paulo, Brazil
来源：
MACROMOLECULAR SYMPOSIA | 2006年 / 245卷
关键词：
conducting blends; impedance spectroscopy; poly(o-methoxyaniline);
D O I：
10.1002/masy.200651318
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Impedance measurements were carried out in flexible, conducting and semi crystalline films obtained by casting poly(p-hydroxystyrene)-b-polyisoprene (PHS-b-IR) and p-toluene sulfonic acid (TSA)-doped poly(o-methoxyaniline) (POMTS) mixtures from N,N-dimethylformamide solutions. The measures ac were made in LCR Meter HP4284A equipment, in the range 10(2)-10(6) Hz. The results were analyzed using a program in LabView platform for the attainment of the impedance arcs to obtain the conducting blends parameters. The obtained results had allowed evaluating some characteristics of studied conducting POMTS blends as conductivity ac, dielectric relaxation time, and capacitance. Analysis by optical microscopy (OM) allowed the observation of quasi-spherical particles dispersed morphology for blends with 5 to 50-wt% of POMTS. However, this morphology was not observed for blends presenting more than 50% of POMTS.
引用
收藏
页码：132 / 139
页数：8
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