富马酸混合醇酯-醋酸乙烯酯的制备和表征  

The Synthesis and Properties Characterization of Fumaric Acid Mixed Alcohol Ester-vinyl Acetate

作　　者：石博文[1] 武文娟[1] 谭泽宇 赵海刚[1] 

机构地区：[1]神华宁夏煤业集团有限责任公司,宁夏灵武750411

出　　处：《山东化工》2016年第13期13-17,共5页Shandong Chemical Industry

基　　金：辽宁省教育厅创新团队基金项目(LT2010086)

摘　　要：润滑油降凝剂富马酸混合醇酯-醋酸乙烯酯聚合物的制备,采用了"先聚合,后酯化"的方式来进行实验,首先在引发剂过氧化苯甲酰(BOP)的作用下,富马酸与醋酸乙烯酯进行聚合反应,得到富马酸-醋酸乙烯酯共聚物,之后在催化剂对甲苯磺酸的作用下,与混合醇进行酯化反应,得到富马酸混合醇酯-醋酸乙烯酯聚合物。利用正交和单因素实验设计方法得到了制备该降凝剂的最佳工艺条件。聚合反应最佳工艺条件:富马酸与醋酸乙烯酯反应物质的量比1∶1、引发剂用量1.5%、聚合时间3.5 h、聚合温度70℃、溶剂用量50%。酯化反应最优工艺条件:富马酸-醋酸乙烯酯共聚物与混合醇反应物质的量比为1∶2、溶剂量为50%、催化剂量为1.5%。红外分析表明,制备产物的官能团结构与设计的目标产物官能团相符。将该降凝剂按0.6%(质量分数)的剂量加入到150SN润滑油中,润滑油凝点可降低18℃。The lubrication oil Pour Point Depressant of fumaric acid mixed alcohol ester-vinyl acetate is manufactured.The main principle of this experiment method is ＂first polymerization and then esterification ＂∶ first,under certain conditions,by using toluene as solvent and benzoyl peroxide（BPO） as initiator,fumaric acid-vinyl acetate polymer can be obtained through the polymerization between fumaric acid and vinyl acetate;then toluene-p-sulfonic acid as catalyzer,target product could be gained through esterification between fumaric acid-vinyl acetate polymer and mixed higher alcohols.Through the single factor and orthogonal experiments,the suitable conditions for preparing fumaric acid mixed alcohol ester-vinyl acetate has been obtained..The optimized conditions of polymerization are shown as follows：n（fumaric acid） ∶ n（vinyl acetate） = 1 ∶ 1,w（BPO） = 1.5%（according to the total amount of fumaric acid and vinyl acetate）,w（toluene） = 50%,polymerization temperature = 70℃,polymerization time = 3.5h.The optimized conditions of ester reaction are shown as follows：n（fumaric acid-vinyl acetate polymer） ∶ n（mixed higher alcohols） = 1∶ 2,w（p-toluenesulfonic acid） = 1.5%,w（toluene） = 50%.The IR analysis shows that the functional group of the preparation products matches with the designed target products.SP of the lubrication oil can be lowered by 18℃ when the final product is mixed into 150 SN lubrication oil by 0.6%.

关 键 词：富马酸 醋酸乙烯酯 混合醇 聚合反应 酯化反应 FTIR 

分 类 号：TQ314.24[化学工程—高聚物工业]