摘要
研究了采用直接热加合法合成聚异丁烯丁二酰亚胺的工艺过程。将活性聚异丁烯与马来酸酐直接反应生成聚异丁烯丁二酸酐,然后再与四乙烯五胺进行胺化反应得到目的产物,过程中不使用毒性大的氯气和不安全的引发剂,使得该法安全且具有污染小、产品中氯质量浓度低于30mg.L-1等优点。实验考察了配料比、温度、聚异丁烯相对分子质量以及反应时间对产物性能的影响,确定了最佳工艺条件。
Synthesis of polyisobutanyl succinimides through hot reaction was researched in this short paper.Polyisobutenylsuccinic anhydride was prepared by the reaction of highly active polyisobutene with maleic anhydride as the first step,and then the obtained products reacted with tetraethylenepentamine to give polyisobutenyl succinimides.No Cl2 was used in this process therefore the synthesis was environment benign and the content of chlorine was lower than 30×10-6.The effects of the compositions,temperature,average molecular weight of polyisobutene and reaction time on the product performances were investigated by experimental study,and optimum technique conditions were determined.
出处
《江苏化工》
2007年第5期23-26,共4页
Jiangsu Chemical Industry
关键词
聚异丁烯丁二酰亚胺
热合法
合成
polyisobutenyl succinimides
hot reaction
synthesis
