کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1650959 | 1517332 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dual-color polystyrene microspheres by two-stage dispersion copolymerization
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Dual-color monodisperse polystyrene microspheres have been prepared by two-stage dispersion polymerization, whose addition of the dye-comonomer was deferred until the nucleation stage was complete. Two dyes were covalently incorporated into microspheres by copolymerization without disturbing the final particle size and size distribution. No dye leakage occurs for the microsphere suspension because of covalent bonding of dye molecules. By varying the dye concentrations in microspheres, we obtained fluorescent microspheres with two distinguishing parts of fluorescence and varied fluorescent intensity ratios under a single-wavelength excitation. The microspheres present intense fluorescence for the large amount of encapsulated dye molecules.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 62, Issues 17–18, 30 June 2008, Pages 2603–2606
Journal: Materials Letters - Volume 62, Issues 17–18, 30 June 2008, Pages 2603–2606
نویسندگان
Weibing Wu, Mingliang Wang, Yueming Sun, Wei Huang, Chunxiang Xu, Yiping Cui,