Synthesis and characterization of pH and temperature sensitive hydrogel based on poly(N-isopropylacrylamide), poly(蓻-caprolactone), methylacrylic acid, and methoxyl poly(ethylene glycol)
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- 作者：Xu Xu (11098)
Jia Song (11098)
Ke Wang (11098)
YingChun Gu (21098)
Feng Luo (11098)
XiaoHai Tang (31098)
Ping Xie (41098)
ZhiYong Qian (11098) - 关键词：biodegradable ; hydrogel ; pH/thermo ; sensitive ; degradation ; swelling/deswelling.
- 刊名：Macromolecular Research
- 出版年：2013
- 出版时间：August 2013
- 年：2013
- 卷：21
- 期：8
- 页码：870-877
- 全文大小：1343KB
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Jia Song (11098)
Ke Wang (11098)
YingChun Gu (21098)
Feng Luo (11098)
XiaoHai Tang (31098)
Ping Xie (41098)
ZhiYong Qian (11098)
11098. State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, 610041, P. R. China
21098. Mobiles Station for the Biology Post-Doctors, School of Life Sciences, Sichuan University, Chengdu, 610064, P. R. China
31098. ChongQing Lummy Pharmaceutical Co., Ltd, ChongQing, P. R. China
41098. State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, 610064, P. R. China - ISSN：2092-7673
文摘
In this paper, a novel biodegradable and pH/thermo-sensitive hydrogel based on poly(蓻-caprolactone), methoxyl poly(ethylene glycol), methylacrylic acid and N-isopropylacrylamide was prepared by UV-initiated free radical polymerization. The hydrogels were characterized by Fourier transforms infrared ray. The thermal responsibility was investigated with the help of differential scanning calorimetry. Swelling behavior in aqueous medium with different pH value was studied in detail. When the pH value of the aqueous medium was increased from 1.2 to 7.2, the swelling ratio of the hydrogels increased accordingly. The morphology was observed by scanning electron microscopy, and the hydrolytic degradation behavior in different aqueous media (pH 1.2 and pH 7.2) was also investigated in detail. The prepared biodegradable pH/thermo-sensitive hydrogel based on poly(蓻-caprolactone), methoxyl poly(ethylene glycol), methylacrylic acid and N-isopropylacrylamide hold great promise in the development of a smart drug delivery system.