کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
597472 | 1454066 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrorheological properties of aminated chitosans
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper focused on effects of amine and Ï-orbital for enhancing electrorheological properties. Various aminated chitosans were synthesized by coupling of diethylenetriamine, melamine, and Bismarck brown R onto chitosan in this study. After comparing the shear stress of all prepared ER fluids, melamine and Bismarck brown R coupled chitosans showed higher shear stress than other ER chitosan derivatives. Because amine group is cation, cation-Ï interaction could be expected for enhancing shear stress together with Ï-Ï stacking. And these aminated chitosans showed low current density and conductivity due to the cation-Ï interaction not to the Ï-Ï stacking.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 305, Issues 1â3, 15 September 2007, Pages 120-125
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 305, Issues 1â3, 15 September 2007, Pages 120-125
نویسندگان
Young Gun Ko, Bo Hyun Sung, Ung Su Choi,