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Radiation synthesis and characterization of polyacrylic acid hydrogels 被引量：1

Radiation synthesis and characterization of polyacrylic acid hydrogels
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摘要 The pH-sensitive polyacrylic acid (PAA) hydrogels were synthesized by gamma-ray irradiation at an am- bient temperature. The influences of dose, monomer concentration, cross-linking agent content, pH, and ionic strength on the swelling ratio (SR) of the PAA hydrogels were investigated in detail. The results show that the SR of the hy- drogel decreases with an increase in the dose, monomer concentration, and cross-linking agent content. In alkaline so- lution, the SR of the hydrogels is much higher than that in acid solution. Also, the ionic strength can influence the SR of the hydrogels. The more the concentration, the lower the The pH-sensitive polyacrylic acid （PAA） hydrogels were synthesized by gamma-ray irradiation at an ambient temperature. The influences of dose, monomer concentration, cross-linking agent content, pH, and ionic strength on the swelling ratio （SR） of the PAA hydrogels were investigated in detail. The results show that the SR of the hydrogel decreases with an increase in the dose, monomer concentration, and cross-linking agent content. In alkaline solution, the SR of the hydrogels is much higher than that in acid solution. Also, the ionic strength can influence the SR of the hydrogels. The more the concentration, the lower the SR.
作者 YANG Mingcheng SONG Hongyan ZHU Chengshen HE Suqin
机构地区 School of Materials Science and Engineering Isotope Institute of Henan Academy of Sciences
出处 《Nuclear Science and Techniques》 SCIE CAS CSCD 2007年第2期82-85,共4页 核技术（英文）
基金 Supported by Natural Science Foundation of Henan Province (0611023900)
关键词 聚丙烯酸 水凝胶 辐射合成 特性 pH-sensitive behavior, Polyacrylic acid hydrogels, Radiation synthesis
分类号 O644 [理学—物理化学] O631 [理学—高分子化学]
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参考文献12

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同被引文献16

  • 1赵育,陈国华,孙明昆,晋治涛,高从堦.pH敏感性羟乙基甲壳素/聚丙烯酸水凝胶的制备及其释药性能研究[J].生物医学工程学杂志,2006,23(2):338-341. 被引量：4
  • 2李秀瑜,吴文辉,王建全,王著,牛春梅.pH敏感瓜胶/聚丙烯酸半互穿网络水凝胶的溶胀动力学[J].高分子材料科学与工程,2006,22(2):177-180. 被引量：9
  • 3SONG Hongyan,YANG Mingcheng,ZHU Chengshen,HE Suqin,GAO Ya.Synthesis and properties of p(NIPA-co-NVP)/clay hydrogels by radiation polymerization[J].Nuclear Science and Techniques,2007,18(1):55-58. 被引量：4
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  • 7HOFFMAN A S.Applications of thermally reversible polymers and hydrogels in therapeutics and diagnostics[J].Journal of Controlled Release,1987,6(1):297-305.
  • 8SANTIGO F,ANTONOO E,MUCIENTE S,et al.Preparation of composites and nanocomposites based on bentonite and poly(sodium acrylate):effect of amount of bentonite on the swelling behavior[J].European Polymer Journal,2007,43(1):1-9.
  • 9XIANG Y Q,PENG Z Q,CHEN D J.A new polymer/clay nano-composite hydrogel with improved response rate and tensile mechanical properties[J].European Polymer Journal,2006,42(9):2125-2132.
  • 10PFISTER L A,PAPALOIZO S M,MERKLE H P,et al.Hydrogel never conduis produced from alginate/chitosan complexes[J].Journal of Biomedical Materials Research Part A,2007,80A(3):932-937.

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Nuclear Science and Techniques
2007年 第2期

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