کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5186485 | 1381106 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-step preparation of organosilica@chitosan crosslinked nanospheres
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
A one-step way to prepare organosilica@chitosan crosslinked nanospheres was developed through self-assembly of amphiphilic copolymers synthesized by concurrent grafting polymerization and sol-gel reaction. The core 'organosilica' was formed by hydrolysis and condensation of an alkyloxosilane-3-(trimethoxysilyl) propyl methacrylate (TMSPM) that was simultaneously polymerized using chitosan/tert-butyl hydroperoxide (TBHP) as redox-pair initiator. The well-defined nanospheres had adjustable sizes below 100Â nm, and had not harmful residues impeding medical applications. This synthesis method simplified the preparation of silica@polymer spheres by eliminating the previous core-forming step, and could apply many water-soluble biopolymers containing -NH2 groups as the shell materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 4, 8 February 2006, Pages 947-950
Journal: Polymer - Volume 47, Issue 4, 8 February 2006, Pages 947-950
نویسندگان
Bin Fei, Haifeng Lu, John H. Xin,