کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1258295 | 971610 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design, synthesis and characterization of a novel pH-sensitive hydrogel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel degradable pH-sensitive hydrogel with pendent carboxyl groups was designed and synthesized from ethylenediaminetetraacetic dianhydride (EDTAh) and butanediamine (BDA) with dicyclohexylcarbodiimide (DCC) as a condensating agent and BDA as a crosslinking agent. The obtained polymers were characterized by 13C NMR, 1H NMR and FTIR. The swelling experiments of the hydrogel in pH 3, 7, and 12 media indicated much higher swelling ratio in pH 12 media than in pH 3 and pH 7 media, exhibiting sound pH sensitivity. The pH sensitivity of this type of hydrogel may be regulated through controlling the type and the dose of the crosslinking agent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 19, Issue 12, December 2008, Pages 1475–1478
Journal: Chinese Chemical Letters - Volume 19, Issue 12, December 2008, Pages 1475–1478
نویسندگان
Jiao Xia Sun, Yan Feng Luo, Hui Peng, Zhi Wei Han,