کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5185907 1381090 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conducting hydrogels with enhanced mechanical strength
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Conducting hydrogels with enhanced mechanical strength
چکیده انگلیسی

Mechanically strong triple-network (TN) hydrogels composed of poly(acrylic acid) (PAA) and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) have been fabricated with conductive PEDOT-PSS hydrogel acting as the third network. As-prepared PAA/PEDOT-PSS TN hydrogels display a compressive fracture stress as high as 1.8 MPa and still keep the electrical functionality of the conducting component. The success of PEDOT-PSS hydrogel in strengthening the materials is ascribed to the entangled microstructure of the triple networks and the variable molecular structure of the conducting polymer. A preliminary strengthening mechanism is proposed based upon the experimental results and the DN and/or TN theories. In addition, the applicability of the TN hydrogels in electrosensors and supercapacitors is briefly discussed. The present findings have successfully demonstrated the functionalization of mechanically strong hydrogels, and are of crucial significance in the development of DN and TN hydrogels both academically and practically.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 50, Issue 22, 20 October 2009, Pages 5236-5241
نویسندگان
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