PREPARATION OF THERMO-SENSITIVE HYDROGEL BY PREIRRADIATION GRAFTING

Wu Minghong; Chen Jie; Ding Zhongli; Bao Borong; Ma Zueteh

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PREPARATION OF THERMO-SENSITIVE HYDROGEL BY PREIRRADIATION GRAFTING

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- PREPARATION OF THERMO-SENSITIVE HYDROGEL BY PREIRRADIATION GRAFTING
- Journal of Radiation Research and Radiation Processing Vol. 14, Issue 3, Pages: 129-133(1996)
- 作者机构：
  
  上海大学射线应用研究所　上海　201800
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1996-08，
  
  Received：31 October 1995，
  
  Revised：12 February 1996，
- 稿件说明：
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Wu Minghong, Chen Jie, Ding Zhongli, et al. PREPARATION OF THERMO-SENSITIVE HYDROGEL BY PREIRRADIATION GRAFTING. [J]. Journal of Radiation Research and Radiation Processing, 1996,14(3):129-133.
DOI：

Wu Minghong, Chen Jie, Ding Zhongli, et al. PREPARATION OF THERMO-SENSITIVE HYDROGEL BY PREIRRADIATION GRAFTING. [J]. Journal of Radiation Research and Radiation Processing, 1996,14(3):129-133. DOI：

摘要

通过空气中预辐照乙烯-醋酸乙烯共聚物（EVA）试片，将单体N-异丙基丙烯酰胺（NIPAAm）接枝到EVA表面上，得到一种新型的具有良好的热敏性及机械性能的水凝胶。研究了各种因素对接枝反应及热敏性能的影响。结果表明：接枝体系具有一般预辐照液-固两相接枝体系的共性；接枝NIPAAm后的EVA与NIPAAm水凝胶相比，不仅机械性能得到了改善，而且其表面具有比NIPAAm水凝胶更加灵敏的热敏性。

Abstract

In this paper

a new thermo-sensitive hydrogel that N-isopropyl -acrylamide (NIPAAm) was grafted onto ethylene-vinylacetate copolymer (EVA) by preirradiation grafting was obtained

and the effect of reaction condition on grafting reaction and thermo-sensive were discussed. The experimental results showed that the grafting reaction on EVA with NIPAAm has common characteristics of preirradiation grafting reaction. Compared with the poly-NIPAAm gel

the grafted EVA with NIPAAm behave the better mechanical strength and the more swift response to the change of temperature.

关键词

辐射接枝生物医用材料热敏性EVA

Keywords

Irradiation graftingBiological medical materialThermo-sensitiveEthylene-vinylacetate copolymers (EVA)

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Shanghai Institute of Nuclear Research, Acadima Sinica

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