کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5359627 1503635 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimizing conditions of preparation of thermoresponsive SiO2-POEGMA particles via AGET-ATRP
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Optimizing conditions of preparation of thermoresponsive SiO2-POEGMA particles via AGET-ATRP
چکیده انگلیسی


- Thermosensitive SiO2 nanoparticles were prepared with POEGMA via AGET-ATRP.
- Reaction conditions were optimized.
- Thermosensitive properties of SiO2-POEGMA particles were pronounced.

Thermosensitive poly(ethylene glycol) methyl ether methacrylate (POEGMA) was grafted on SiO2 nanoparticles using activators generated by electron transfer atom transfer radical polymerization (AGET-ATRP) technique. The effects of the amount of ligand, catalyst, ascorbic acid and monomer, as well as the reaction temperature and time were systematically investigated and optimized to get a high grafting density. The structure of the hybrid materials was characterized by Fourier transform infrared (FTIR) spectroscopy, and the morphology was characterized by transmission electron microscopy (TEM) observations. Thermosensitive properties of SiO2-POEGMA particles were investigated at different grafting densities by turbidity measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 329, 28 February 2015, Pages 234-239
نویسندگان
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