کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10618908 | 988199 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polyaniline actuators
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Actuation of polyaniline (PANI)/Au bending bilayers and stretched polyaniline fibers doped with 2-acrylamido-2-methyl-propane-1-sulfonic acid was studied in aqueous methanesulfonic acid. Electrochemical activity was retained even upon repeated cycling into the pernigraniline state, unlike in HCl. The polyaniline expanded 1.6% from the leucoemeraldine state to the emeraldine state, similar to the strain in HCl, and then contracted 0.2% upon entering the pernigraniline state. The polyaniline was not mechanically stable in the pernigraniline state, however: the ultimate tensile strength decreased so much that the actuators were rendered ineffective for lifting a load. In addition, in this electrolyte the creep was considerable even under small loads; the Young's modulus was only 0.4Â GPa in the oxidized state, compared to 1.7Â GPa in HCl.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 151, Issue 1, 31 May 2005, Pages 43-48
Journal: Synthetic Metals - Volume 151, Issue 1, 31 May 2005, Pages 43-48
نویسندگان
Elisabeth Smela, Benjamin R. Mattes,