کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9559325 | 1381159 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bottom-up synthesis of PS-CNF nanocomposites
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Polystyrene-carbon nanofiber (CNF) nanocomposites have been synthesized by a 'bottom-up' method through electrostatic assembly. First, a cationic polystyrene (PS) latex was synthesized by conventional emulsion polymerization. The latex was mixed with an aqueous suspension of oxidized CNF. PS-CNF nanocomposites were obtained by heterocoagulation due to the electrostatic interaction between cationic PS latex and anionic CNF. Thermal properties were characterized by DSC and TGA, while morphologies of the nanocomposites were studied by SEM. Electrical resistivity results showed that the percolation threshold in our PS-CNF nanocomposites was below 2Â wt% (1Â vol%). This low percolation threshold is related to the dispersion, and thus a superior network formation of CNF in PS matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 3, 26 January 2005, Pages 799-810
Journal: Polymer - Volume 46, Issue 3, 26 January 2005, Pages 799-810
نویسندگان
Yijin Xu, Bernadette Higgins, William J. Brittain,