甲醛与环氧氯丙烷交替共聚物制备及其表征  

Preparation and Characterization of Alternating Copolymers of Formaldehyde and Epichlorohydrin

作　　者：张雨柱 曾敬 周立民[1] 杨隽[1] Zhang Yuzhu;Zeng Jing;Zhou Limin;Yang Jun(School of Materials Science and Engineering,Wuhan Institute of Technology,Hubei,430205)

机构地区：[1]武汉工程大学材料科学与工程学院,湖北430205

出　　处：《当代化工研究》2024年第7期160-162,共3页Modern Chemical Research

基　　金：武汉工程大学第十四届教育创新基金“甲醛-环氧化合物共聚物制备及其降解性能研究”(项目编号:CX2022219)。

摘　　要：采用自制的三氟化硼-二苯基亚砜复合物催化剂,以三聚甲醛与环氧氯丙烷通过阳离子开环聚合的方法共聚合成出一种新型甲醛与环氧氯丙烷交替共聚物,并探究了不同反应条件对共聚结果的影响。采用了傅里叶红外光谱、核磁共振谱、凝胶渗透色谱等对所得共聚物的结构进行了表征。结果表明,该聚合反应在甲醛与催化剂摩尔比例为50:1、甲醛与环氧氯丙烷摩尔比例为1:1、反应时间为8 h、反应温度为25℃的条件下进行反应产率可达到84.52%。由凝胶渗透色谱结果表明,该条件下共聚物的Mn=3.60×10^(3),分子量分布指数PDI=1.32。傅里叶红外光谱、核磁共振谱分析的结果表明,该共聚物为交替共聚物。With a catalyst,boron-trifluoride-diphenyl sulfoxide complex,a new alternating formaldehyde and epichlorohydrin copolymer was copolymerized with trioxane and epichlorohydrin by cationic ring-opening copolymerization.The effects of different reaction conditions on the copolymerization results were investigated.The structure of the resulting copolymer was characterized with IR spectroscopy,1H-NMR spectroscopy and GPC.The results showed that the optimal conditions are ratio of formaldehyde to catalyst 50:1,ratio of formaldehyde to epichlorohydrin 1:1,reaction time 8 h and reaction temperature 25℃.The yield is 84.52% in this condition.The results of GPC showed that the copolymer were Mn=3.60×10^(3) and PDI=1.32.The results of NMR spectroscopy indicated that the copolymer was an alternating copolymer.

关 键 词：三聚甲醛 环氧氯丙烷 甲醛和环氧氯丙烷共聚物 三氟化硼-二苯亚砜复合物 

分 类 号：TQ[化学工程]