کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5211253 1382942 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controlled synthesis of thermoresponsive polymer via RAFT polymerization of an acrylamide containing l-proline moiety
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Controlled synthesis of thermoresponsive polymer via RAFT polymerization of an acrylamide containing l-proline moiety
چکیده انگلیسی
Reversible addition-fragmentation chain transfer (RAFT) polymerization of N-acryloyl-l-proline methyl ester (A-Pro-OMe) was investigated in order to find suitable conditions to achieve controlled synthesis of amino acid-based polymers with pre-determined molecular weight, narrow polydispersity, well-defined chain end structure, and characteristic thermoresponsive property. The effect of various parameters, such as chain transfer agent (CTA)/initiator ratio, solvent, and temperature, on RAFT polymerization of A-Pro-OMe was examined using benzyl dithiobenzoate as a CTA. Chain-end structure of the resulting poly(A-Pro-OMe) was confirmed by 1H NMR analysis, MALDI-TOF mass spectroscopy, and chain extension experiment. Thermally induced phase separation behaviors of poly(A-Pro-OMe)s prepared by RAFT and conventional free radical polymerizations were also studied in aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 67, Issue 10, October 2007, Pages 916-927
نویسندگان
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