磺酸甜菜碱型两性离子单体DEPS的合成与表征

Synthesis and Characterization of Zwitterionic Monomer DEPS

以甲基丙烯酸-N,N-二乙基胺基乙酯和1,3-丙烷磺内酯为原料,乙腈为溶剂,一步法合成了甲基丙烯酰氧乙基-N,N-二乙基丙磺酸盐(DEPS),其结构经红外光谱、核磁共振和元素分析等表征和确证。结果表明,DEPS含有“C=C”、酯基、季铵离子以及磺酸基团,为具有磺酸甜菜碱结构特征的两性离子单体。

The compound of N,N-diethyl-N-methacryloxyethyl-N-(3-sulfopropyl)ammonium was synthesized through the reaction of N,N-diethylaminoethyl methacrylate and 1,3-propane sulfone using acetonitrile as solvent,and characterized with IR,^(1)H NMR and elementary analysis.The results showed that double bond and sulfobetaine group was present in the molecule of N,N-diethyl-N-methacryloxyethyl-N-(3-sulfopropyl)ammonium.This obtained compound had the structural characteristic of sulfo ammonium zwitterionic monmer.