کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5435326 1509346 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhancement of polypyrrole linear actuation with poly(ethylene oxide)
ترجمه فارسی عنوان
افزایش عملیات خطی پلی پیلور با پلی (اتیلن اکسید)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی


- Polyethylene oxides in electropolymerization forming more compact PPy films.
- Linear actuators of PPy-PEO/DBS showing significant increase in strain.
- The ion diffusion coefficient and strain rate is improved in PPy-PEO/DBS.

In the present paper, we report the electro-chemo-mechanical deformation (ECMD) measurements of pristine polypyrrole (PPy) and polypyrrole/poly(ethylene oxide) composite films doped with dodecylbenzenesulfonate (DBS) under isotonic (constant force) conditions. The PPy/DBS and PPy-PEO/DBS films, the latter made from a polymerization solution containing 5 wt% PEO, were actuated potentiodynamically in an aqueous solution containing lithium bis-trifluoromethane-sulfonimide (LiTFSI). The obtained composite films were characterized with scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy and Fourier transform infrared spectroscopy (FTIR). The results confirmed the successful incorporation of PEO within the PPy film. The composite films showed a remarkable improvement in maximum strain achieved (of 7.7%), nearly double that of the pristine PPy/DBS film, had a higher conductivity, higher ion diffusion coefficient and faster strain rate. The ECMD measurements for both the pristine as well as the PEO-composite films showed cation driven actuation involving the migration of Li+ cations in the aqueous electrolyte.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 232, October 2017, Pages 1-7
نویسندگان
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