کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7105899 | 1460485 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of polystyrene-grafted nanosilica via nitroxide radical coupling reaction and its application in UV-curable acrylate-based coating systems
ترجمه فارسی عنوان
سنتز نانوسیلیکاسیون پلی استایرن به واسطه واکنش جفتگیری رادیکال نیتروکسید و کاربرد آن در سیستم های پوشش محافظتی مبتنی بر اشعه ماوراء بنفش
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کلمات کلیدی
نانوسایلیکا، واکنش پیوند رادیکال نیتروکسید، مواد معدنی غیر آلی مواد ترکیبی، عکسبرداری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The fabrication of polystyrene-grafted nanosilica (SiO2âgâPS) via nitroxide radical coupling (NRC) reaction was presented in this study. First, nanosilica anchored with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO)-based nitroxide radicals was synthesized by hydrolysis-condensation reaction between TEMPO-based nitroxide radical functional triethoxysilyl coupling agents and nanosilica. Then, the pre-synthesized, well-defined PS with bromide end group which was obtained by atom-transfer radical polymerization (ATRP) was grafted onto the functionalized nanosilica in the presence of CuBr/PMDETA. The structure, surface morphologies and particle size of the obtained hybrid nanoparticles were investigated by characterization methods The grafting yield by this method achieved up to 37.5% in the given conditions, which is approximated to the ones obtained by 'grafting to' route. A comprehensive study of UV-curable formula based on acrylates/polymer-grafted nanosilica were also discussed to find a possible correlation among the viscosity, curing kinetics, mechanical and thermal properties of the final hybrid organic-inorganic coatings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Organic Coatings - Volume 119, June 2018, Pages 76-84
Journal: Progress in Organic Coatings - Volume 119, June 2018, Pages 76-84
نویسندگان
Jiahui Su, Yan Yang, Yingyin Chen, Xingfa Zeng, Hongping Xiang, Yanyan Cui, Xiaoxuan Liu,