Preparation of CS/PAAc copolymer hydrogel with irradiation method and characterization of its swelling properties

YANG Liming; SHI Lili; CHEN Jie; WANG Sheng; ZHANG Zhende; XIA Yiben

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Preparation of CS/PAAc copolymer hydrogel with irradiation method and characterization of its swelling properties

更新时间：2023-03-30

- Preparation of CS/PAAc copolymer hydrogel with irradiation method and characterization of its swelling properties
- Journal of Radiation Research and Radiation Processing Vol. 23, Issue 5, Pages: 274-277(2005)
- 作者机构：
  
  1.上海大学环境与化学工程学院化学工程与工艺系　上海　201800
  2.上海大学材料科学与工程学院电子信息材料系　上海　200072
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YANG Liming, SHI Lili, CHEN Jie, et al. Preparation of CS/PAAc copolymer hydrogel with irradiation method and characterization of its swelling properties. [J]. Journal of Radiation Research and Radiation Processing 23(5):274-277(2005)
DOI：

YANG Liming, SHI Lili, CHEN Jie, et al. Preparation of CS/PAAc copolymer hydrogel with irradiation method and characterization of its swelling properties. [J]. Journal of Radiation Research and Radiation Processing 23(5):274-277(2005) DOI：

摘要

采用电子束对壳聚糖和丙烯酸混合水溶液进行辐照，制得了壳聚糖/聚丙烯酸（CS/PAAc）共聚物水凝胶。研究了pH值、各组分配比和辐照剂量等因素对产物溶胀率的影响。结果表明，水凝胶具有pH敏感性，在强酸性（pH≈1）和碱性（pH>7）条件下均表现出较好的溶胀性；而在pH 2—5范围内溶胀率较小。同时，随着辐照剂量的增大，产物的溶胀率也随之增大，在酸性条件下表现并不明显，而当pH>6时增大效果较显著。

Abstract

Chitosan/poly(acrylic acid) (CS/PAAc) copolymer hydrogel was prepared by E-beam irradiation of mixed aqueous solution of chitosan and acrylic acid. The effect of pH, composition and irradiation dose on the equilibrated swelling ratio of the hydrogels was determined. Experimental results show that the hydrogels swelled well in both lower pH (pH≈1) and higher pH (pH>6), however, they shrunk in the range of pH 2—5.

关键词

壳聚糖聚丙烯酸辐照水凝胶pH敏感性

Keywords

ChitosanPoly(acrylic acid)IrradiationHydrogelspH-sensitivity

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