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	PEO/PDMAEMA组成的半互穿网凝胶的辐射合成与电场响应性研究; Radiation synthesis and electron responsive characterstics of semi-IPNS composed of polyethylene oxide and poly(2-dimethylaminoethyl metracrylate)
	刘主根 ; 伊敏 ; 翟茂林 ; 哈鸿飞
	2004
关键词	甲基丙烯酸二甲氨基乙酯(DMAEMA) 聚环氧乙烷(PEO) 半互穿网凝胶 电场响应性 药物释放体系 2-dimethylaminoethyl methacrylate DMAEMA poly( ethylene oxide) PEO semi-interpenetrating polymer networks (semi-IPNs) electric responsiveness drug delivery systems
英文摘要	利用γ辐射引发溶液聚合合成了 3种不同聚环氧乙烷 (PEO)含量的聚环氧乙烷 聚甲基丙烯酸N 二甲氨基乙酯 (PEO PDMAEMA)的半互穿网凝胶 (Semi IPNs) ,通过实验找到了合成这种半互穿网凝胶的最佳条件 .实验中发现PEO含量对凝胶的平衡溶胀度 (EDS)有明显的影响 ,当加入少量的PEO(～ 3wt% )时EDS明显增大 ,后随着PEO含量的逐渐增加 ,EDS又逐渐减小并趋于稳定 .这种Semi IPNs的凝胶有明显的电场响应性 ,其中PEO含量的不同 ,电场响应的效果也有明显的差别 ,以PEO与DMAEMA初始料液比为5∶95的凝胶电场响应性最好 .利用这种凝胶对中药三...; Three Semi-interpenetrating polymer networks (Semi-IPNs) composed of poly (2-dimethylaminoethyl methacrylate) ( PDMAEMA), and poly (ethylene oxide), PEO, were synthesized by gamma-radiation technology. The optimum synthesizing conditions have been found in the work. The equilibrium swelling ratio, EDS, of the Semi-IPNs was effected by the weight ratio between PEO and DMAEMA. When there was a little PEO (similar to3 wt%) in the Semi-IPNs, the EDS of Semi-IPNs was much larger than that of PDMAEMA,as the weight ratio of PEO in Semi-IPNs increased the EDS of Semi-IPNs decreased gradually and tended to be stable. The Semi-IPNs showed obvious electric-responsiveness, and the effect was dependent on the weight ratio of PEO in the Semi-IPNs. The electric-responsiveness was the most remarkable when the weight ratio of PEO was 5% in Semi-IPNs. The Semi-IPNs were used successfully in entraping and electric field controled release of a Chinese traditional medicine, saponins.; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 0; 04; 585-589
语种	中文
出处	万方 ; 知网 ; SCI
出版者	高分子学报
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/80077]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	刘主根,伊敏,翟茂林,等. PEO/PDMAEMA组成的半互穿网凝胶的辐射合成与电场响应性研究, Radiation synthesis and electron responsive characterstics of semi-IPNS composed of polyethylene oxide and poly(2-dimethylaminoethyl metracrylate). 2004-01-01.

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