کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
594302 1453977 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facile and green method for polystyrene grafted multi-walled carbon nanotubes and their electroresponse
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Facile and green method for polystyrene grafted multi-walled carbon nanotubes and their electroresponse
چکیده انگلیسی

Polystyrene (PS) microspheres with a mean diameter of 69 nm were prepared by emulsion polymerization. The PS microspheres were successfully decorated to multi-walled carbon nanotubes (MWNTs) induced by benzoyl peroxide in water during a high temperature refluxing process under nitrogen atmosphere. The as-prepared multi-walled carbon nanotube/polystyrene (MWNT/PS) nanocomposites were characterized by FTIR spectroscopy, Raman spectroscopy, SEM, TEM, differential scanning calorimetry (DSC), and electrical resistance measurements. The results reveal that PS microspheres are mainly covalently grafted onto the walls of MWNTs. The PS-decorated MWNTs show high solubility in toluene and xylene without sedimentation after 24 h. With MWNTs in the hybrids, PS achieved a considerable increase in electrical conductivity and glass-transition temperature (Tg). In particular, the obtained MWNT/PS composites were examined for electrorheological (ER) fluids, which showed thin and dense chains of particles after the application of an electric field. The facile and environmentally friendly technique presented in the present study could be an effective and promising method for the functionalization of MWNTs by other polymers.

The MWNT/PS composites showed thin and dense chains of particles after the application of an electric field. The facile and environmentally friendly technique presented in the present study could be an effective and promising method for the functionalization of MWNTs by other polymers.Figure optionsDownload as PowerPoint slideHighlights
► Facile and green method for functionalization of MWNTs.
► MWNTs greatly increase the electrical and thermal properties of PS microspheres.
► The MWNTs/PS show high solubility in toluene and xylene without sedimentation.
► The MWNTs/PS nanocoposites serve as eminent electrorheological (ER) material.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 396, 20 February 2012, Pages 177–181
نویسندگان
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