RADIATION GRAFTING OF DEGDMA AND HEMA ONTO SILLICON RUBBER BY DIRECT METHOD

Du Cong; Li Zunling; Lu Wei; Ma Ruide

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RADIATION GRAFTING OF DEGDMA AND HEMA ONTO SILLICON RUBBER BY DIRECT METHOD

更新时间：2023-04-23

- RADIATION GRAFTING OF DEGDMA AND HEMA ONTO SILLICON RUBBER BY DIRECT METHOD
- Journal of Radiation Research and Radiation Processing Vol. 2, Issue 1, Pages: 27-31(1984)
- 作者机构：
  
  1.上海科学技术大学
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Du Cong, Li Zunling, Lu Wei, et al. RADIATION GRAFTING OF DEGDMA AND HEMA ONTO SILLICON RUBBER BY DIRECT METHOD. [J]. Journal of Radiation Research and Radiation Processing 2(1):27-31(1984)
DOI：

Du Cong, Li Zunling, Lu Wei, et al. RADIATION GRAFTING OF DEGDMA AND HEMA ONTO SILLICON RUBBER BY DIRECT METHOD. [J]. Journal of Radiation Research and Radiation Processing 2(1):27-31(1984) DOI：

摘要

本文主要报道采用,60,Coγ射线将DEGDMA和DEGDMA, HEMA混合单体分别在乙醇／水（1:1 w/w）体系中，与硅橡胶管共辐射接枝。,从所得实验结果指出：单体和链转移剂(四氯化碳）在体系中浓度增大接枝率提高，当Cu,++,浓度为0.075 ,N,(当量浓度）时，接枝率曲线上出现峰值。在同一辐射剂量时，剂量率增大，接枝率有所下降。在同一剂量率时，接枝率随辐射剂量增大而提高。DEGDMA和HEMA混合单体在乙醇／水(1:1w/w）体系中，DEGDMA含量增多，接枝率有所提高，HEMA增多，接枝物的水含量增高。

Abstract

This paper mainly reports the γ-induced radiation grafting of diethylene glycol dimethacrylate (DEGDMA) and its mixture with ,β,-hydroxyethyl methacrylate (HEMA) in ethanol/water (1:1,W,/,W,) systems onto silicon rubber by direct method.,The results show that the grafting yield is increased with the radiation dose, and concentration of monomer and the concentration of transfer agent in systems.,When the concentration of cu,++, ions reached 0.075,N, a maximum graftion yield was observed.,At the same radiation dose, the degree of grafting decreased with the increase of dose rate. However, at the same dose rate, the grafting level increased with dose.,The water content in grafts increased with the concentration of hydrophilic HEMA in the mixture of monomers.,It is advantageous to increase the grafting level in ethanol/water (1:1 ,W,/,W,) by increasing the concentration of hydrophobic DEGDMA.

关键词

生物材料辐射接枝共聚物水凝胶

Keywords

BiomaterialsRadiation graft copolymersHydrogels

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