کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5211143 | 1382938 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In situ formation of thermosensitive P(NIPAAm-co-GMA)/PEI hydrogels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A strategy for in situ chemical gelation of poly(N-isopropylacrylamide-co-glycidyl methacrylate)/polyethylenimine (P(NIPAAm-co-GMA)/PEI) polymers has been demonstrated. Two kinds of P(NIPAAm-co-GMA) with epoxy pendant groups were prepared. When the solution of P(NIPAAm-co-GMA) was mixed with branched polyethylenimine (PEI, Mw 800), the cross-linking between the epoxy functional groups and amines, a type of nucleophilic substitution reaction occurred. The corresponding gelation process was confirmed via rheology. The in situ formed hydrogels were studied via scanning electric microscopy (SEM) and the equilibrium swelling ratio, swelling kinetics, and temperature response kinetics were examined. The strategy described here presents a potential alternative to the traditional synthesis techniques for the in situ formation of thermosensitive hydrogels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 69, Issue 1, January 2009, Pages 14-19
Journal: Reactive and Functional Polymers - Volume 69, Issue 1, January 2009, Pages 14-19
نویسندگان
Zong-Chun Wang, Xiao-Ding Xu, Chang-Sheng Chen, Gan-Rui Wang, Si-Xue Cheng, Xian-Zheng Zhang, Ren-Xi Zhuo,