Radiation preparation and characterization of temperature- and pH-sensitive hydrogel of N-isopropylacrylamide/β-cyclodextrin copolymer

SHAN Ting; CHEN Jie; YANG Liming; QIAN Qiang; JIE Shaowei; LIN Han; FAN Jinchen; CAO Fangqi

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Radiation preparation and characterization of temperature- and pH-sensitive hydrogel of N-isopropylacrylamide/β-cyclodextrin copolymer

更新时间：2023-03-30

- Radiation preparation and characterization of temperature- and pH-sensitive hydrogel of N-isopropylacrylamide/β-cyclodextrin copolymer
- Journal of Radiation Research and Radiation Processing Vol. 26, Issue 2, Pages: 103-107(2008)
- 作者机构：
  
  1.上海大学环境与化学工程学院　上海　201800
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SHAN Ting, CHEN Jie, YANG Liming, et al. Radiation preparation and characterization of temperature- and pH-sensitive hydrogel of N-isopropylacrylamide/β-cyclodextrin copolymer. [J]. Journal of Radiation Research and Radiation Processing 26(2):103-107(2008)
DOI：

SHAN Ting, CHEN Jie, YANG Liming, et al. Radiation preparation and characterization of temperature- and pH-sensitive hydrogel of N-isopropylacrylamide/β-cyclodextrin copolymer. [J]. Journal of Radiation Research and Radiation Processing 26(2):103-107(2008) DOI：

摘要

采用顺丁烯二酸酐(MAH)对β-环糊精(β-CD)进行改性，合成了丁烯二酸单酯化β-环糊精(MAH-β-CD)。以电子束为辐射源对MAH-β-CD和N-异丙基丙烯酰胺(NIPAAm)混合物水溶液进行辐照，制备了Poly(NIPAAm-co-MAH-β-CD) 水凝胶。研究了辐照剂量对水凝胶溶胀性能的影响；同时研究了温度、pH值和离子强度等因素对水凝胶溶胀率的影响。结果表明，poly(NIPAAm-co-MAH-β-CD)水凝胶具有温度敏感性、pH敏感性和离子强度敏感性。

Abstract

A hydrogel copolymer of N-isopropylacrylamide/β-cyclodextrin was prepared by radiation copolymerization method. β-cyclodextrin (β-CD) based monomer (MAH-β-CD) containing vinyl and carboxyl functional groups was synthesized by modification of β-CD with maleic anhydride (MAH). And then the mixture aqueous solution of NIPAAm and MAH-β-CD was irradiated by electron beams with BIS as cross-linking agent for sample of poly (NIPAAm-co-MAH-β-CD) hydrogel. The effects of temperature, pH and ionic strength on swelling ratio of the hydrogel were determined meanwhile the effect of irradiation absorbed doses on its swelling and deswelling properties was also described. Experimental results show that the copolymer hydrogel possesses temperature, pH and ionic strength sensitive functions.

关键词

β-环糊精N-异丙基丙烯酰胺辐射聚合水凝胶温度敏感性pH敏感性

Keywords

β-CyclodextriN-isopropylacrylamideRadiation polymerizationHydrogelTemperature-sensitivitypH-sensitivity

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