离子液体的合成及其对瓜尔胶的溶解性能  

Synthesis of ionic liquids and its application for dissolving guar gum

作　　者：周静[1] 杜彬[1] 彭树华 何建平 邓明宇 王克[1] 

机构地区：[1]四川大学高分子研究所,四川成都610065 [2]京昆油田科技开发公司,江苏昆山215300

出　　处：《化学研究与应用》2013年第1期125-129,共5页Chemical Research and Application

摘　　要：本文合成了氯化1-烯丙基-2-丙烯基-4,5-二氢化咪唑(AihimCl),氯化1-丁基-2-丙烯基-4,5-二氢化咪唑(BihimCl),氯化1-己基-2-丙烯基-4,5-二氢化咪唑(HihimCl),氯化1-辛基-2-丙烯基-4,5-二氢化咪唑(OihimCl)四种离子液体;并用傅立叶转换红外光谱(FT-IR),核磁共振氢谱(1H NMR)和碳谱(13C NMR)表征了其结构;研究了这四种离子液体对瓜尔胶(GG)的溶解性,并用偏光显微镜观察了其溶解过程,瓜尔胶在BihimCl中的溶解度可达5.5%;比较了瓜尔胶在四种离子液体中的溶解速度,在BihimCl和OihimCl中的溶解速度比在AihimCl和HihimCl中快,6小时后都能够完全溶解。1-allyl-2-isoallyl-4, 5-dihydro-imidazole chloride （ AihimC1 ）, 1-butyl-2-isoaUyl-4, 5-dihydro-imidazole chloride （ Bi- himC1 ）, 1-hexyl-2-isoallyl-4, 5-dihydro-imidazole chloride （ HihimC1 ） and 1-oetyl-2-isoallyl-4, 5-dihydro-imidazole chloride （OihimC1）were synthesized as solvent for guar gum. Their chemical structures were characterized by FT-IR, 1H NMR and 13C NMIL The solubility of guar gum in the ionic liquids was investigated by means of polarizing optic.,d microscopy（POM）. The solubil- ity of guar gum in BihimC1 was up to 5.5%. The dissolution velocity of guar gum in BihimC1 and OihimC1 was higher than that in AihimCl and HihimC1. After 6 hours guar gum could be dissolved completely.

关 键 词：氢化咪唑类离子液体 合成 瓜尔胶 溶解 

分 类 号：O636.12[理学—高分子化学]