辐射合成水凝胶材料的动力学进程及影响因素

CIESC Journal

辐射合成水凝胶材料的动力学进程及影响因素

刘钰铭,杨月琪,祁颖

上海科技大学,上海科技大学,上海科技大学上海 ,上海 ,上海

出版日期:1989-10-25 发布日期:1989-10-25

The Kinetics and the Factors Affecting Radiation Synthesis of Hydrogel Material

Liu Yuming Yang Yueqi and Qi Yin(Shanghai University of Science and Technology, Shanghai)

Online:1989-10-25 Published:1989-10-25

摘要/Abstract

摘要： 本文主要介绍以电子加速器的高剂量率电子射线合成水凝胶材料的研究,主要结果如下: 1.在动力学进程中,当转化率约20％时才产生凝胶。完成动力学进程所需辐照剂量只需0.5—2.0×10~0rad,辐照时间为1—4分钟; 2.聚合初速率(V_0)与剂最率(Ⅰ)的关系如下:HEMA+EGDMA体系:V_0∞I~(0.53); HEMA+IOMA+EGDMA体系:V_0∞I~(0.48); HEMA+IOAM+EGDMA+RH体系:V_0∞I~(0.50); 3.在聚合物链中引入疏水性单体,可以大大改善水凝胶材料的强度,但含水量相应降低。 4.本材料已用于超薄型软接触镜的生产。

Abstract: This paper presents a study on synthesis of a hydrogel material hy high dose rate electron beam produced by accelerator. The main results are as follows:1. The polymerization system produces the gel when the conversion attains approximately 20%.The radiation doae which completes this kinetic process is only 0.5-2.0Mrad, in other words, the radition time requires only 1-4min.2. The relationship between the initial rate of polymerization (V) and dose rate (I) are as follows:HEMA+EGDMA system: V_0∞I~(0.53) HEMA +EHMA+EGDMA system: V_0∞I~(0.48) HEMA+ EHMA+ EGDMA + RH system: V-0∞I~(0.5)3. When the compounding includes the hydrophobie monomer such as butyl acrylate, the mechanical strength of soft lens made from the hydrogel material is increased while the water absorption is decreased.4. The hydrogel material have been used for the manufacture of the soft contact lenses.

刘钰铭,杨月琪,祁颖. 辐射合成水凝胶材料的动力学进程及影响因素 [J]. CIESC Journal.

Liu Yuming Yang Yueqi and Qi Yin(Shanghai University of Science and Technology, Shanghai). The Kinetics and the Factors Affecting Radiation Synthesis of Hydrogel Material[J]. .