کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10618816 988188 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical properties and conductivity of poly(3-methylpyrrole/ClO4)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Electrochemical properties and conductivity of poly(3-methylpyrrole/ClO4)
چکیده انگلیسی
Electrosynthesis of conducting poly(3-methylpyrrole) has been carried out at fixed potentials of 0.5 and 0.6 V in a NaClO4 acetonitrile solution. The electrochemical behaviour of doped-polymer films has been analysed considering the influence of the negative and positive potential limits as well as the scan rate on the voltammograms recorded in acetonitrile. From these studies a mechanism for the redox processes is proposed. Polymer morphology has been examined by scanning electron microscopy, which reveals a cauliflower and compact texture depending on the potential of synthesis and deposition time. Kinetic of conductivity decay with aging time has been determined to be dependent of exp(−t1/2) with a characteristic time of the degradation process around 20 days.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 151, Issue 2, 14 June 2005, Pages 100-105
نویسندگان
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