کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1987720 | 1540309 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and properties of temperature-responsive chitosan by controlled free radical polymerization with chitosan-RAFT agent
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
The temperature-responsive chitosan was synthesized by free radical polymerization of N-isopropylacrylamide (NIPAM) at 60 °C in the presence of RAFT-chitosan agent. The chitosan was subsequently modified with phthalic anhydride and with S-1-dodecyl-Sâ²-(α,αâ²-dimethyl-αâ³-acetic acid) trithiocarbonate to serve as reversible addition fragmentation chain transfer (RAFT) agent. The polymerization results show that the graft polymerization proceeded via RAFT process, while the “well-defined” graft polymers were successfully synthesized. The temperature played an important role on the self-assembly in H2O dispersion and the morphologies of chitosan-g-PNIPAMs. To our knowledge, this is the first thermosensitive chitosan prepared from controlled graft modification of chitosan by RAFT polymerization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 43, Issue 4, 1 November 2008, Pages 383-389
Journal: International Journal of Biological Macromolecules - Volume 43, Issue 4, 1 November 2008, Pages 383-389
نویسندگان
Jing Tang, Daoben Hua, Jianxin Cheng, Jing Jiang, Xiulin Zhu,