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202105006.pdf
文章编号： 1672-6987（2021）05-0035-06； DOI： 10.16351/j.1672-6987.2021.05.006
陈佃昆， 程绚莺， 谢传欣*(青岛科技大学 环境与安全工程学院，山东 青岛 266042）
摘要： 将过氧化环己酮热转化成的聚6-羟基己酸进行酯化，通过相转移催化的理论和方法，探究了反应时间、温度和催化剂等对酯化反应的影响，并通过FT-IR、1H NMR对产物进行了表征，最终确定了一条以18-冠醚-6（聚6-羟基己酸质量的1%）为催化剂，聚6-羟基己酸与2-溴乙醇质量比3∶1，在90 ℃，反应2 h条件下酯化率为99%的最佳酯化路线。
关键词： 聚6-羟基己酸； 相转移； 酯化； 聚6-羟基己酸酯
中图分类号： TQ 216文献标志码： A
引用格式： 陈佃昆， 程绚莺， 谢传欣. 聚6-羟基己酸酯化反应［J］. 青岛科技大学学报(自然科学版), 2021, 42(5): 35-40.
CHEN Diankun， CHENG Xuanying， XIE Chuanxin. Esterification reaction of poly 6-hydroxycaproate［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2021， 42（5）： 35-40.
Esterification Reaction of Poly 6-Hydroxycaproate
CHEN Diankun， CHENG Xuanying， XIE Chuanxin
(College of Environment and Safety Engineering，Qingdao University of Science and Technology, Qingdao 266042， China)
Abstract: The poly 6-hydroxycaproic acid, which is thermally converted into cyclohexanone peroxide, is esterified. Through the theory and method of phase transfer catalysis, the effects of reaction time, temperature and catalyst on the esterification reaction are explored. And the product are characterized by FT-IR and 1HNMR. Finally, it is determined a product with 18-crown-6 (1% of the mass of poly 6-hydroxyhexanoic acid) as the catalyst, and the mass ratio of poly 6-hydroxyhexanoic acid to 2-bromoethanol is 3∶1. The best esterified route with an esterification rate of 99% at 90 ℃ and 2 h reaction conditions provides a basis for the diversified production of polycaprolactone polyols synthesized by cyclohexanone peroxide.
Key words: poly 6-hydroxyhexanoic acid; phase transfer; esterification; poly 6-hydroxyhexanoate
收稿日期： 2020-11-29
作者简介： 陈佃昆（1995—），男，硕士研究生.*通信联系人.
