高等学校化学学报2001，Vol.22Issue(1)：139-142,4.
k-型卡拉胶/聚乙烯吡咯烷酮共混水凝胶的辐射制备及性质研究
燬tudies on Radiation Preparation and Characteristics of k-Carrageenan/PVP Blend Hydrogel
翟茂林 1哈鸿飞 1吉井文男 2幕内惠三2
作者信息
- 1. 北京大学技术物理系,
- 2. 日本原子力研究所高崎所
- 折叠
摘要
Abstract
In this work,a series of hydrogels in the form of rod were prepared from κ-carrageenan(KC) and poly(N-vinyl pyrrolidone) (PVP) by gamma radiation with 60Co γ source at room temperature.The properties of the prepared hydrogels,such as the gel strength,gel fraction and swelling behavior were investigated.High molecular weight PVP (k-90) blending with KC could produces excellent hydrogels,but low molecular weight PVP (k-30) dosen't.With increasing KC content in the prepared hydrogel,both the gel strength and the equilibrium degree of swelling were improved.The experimental analyses showed that the crosslinking reaction of PVP(k-90) was quicker than the degradation of KC at low dose(less than 30 kGy),and the degradation of KC was inhibited in PVP/KC mixture system.An interpenetrating polymer network (IPN) hydrogel composed of PVP (a chemically crosslinked network) and KC (a physically crosslinked network) was proposed.In addition,the dose influenced greatly the preparation of the hydrogel.关键词
共混水凝胶/凝胶强度/溶胀行为/辐射制备分类
化学化工引用本文复制引用
翟茂林,哈鸿飞,吉井文男,幕内惠三..k-型卡拉胶/聚乙烯吡咯烷酮共混水凝胶的辐射制备及性质研究[J].高等学校化学学报,2001,22(1):139-142,4.
