摘要
探讨了马来酸酐-醋酸乙烯酯共聚物的水相合成。以防垢率为指标,通过正交实验,确定的最佳合成条件为:反应温度65℃,反应时间3 h,m(引发剂):m(单体)=16:100,n(马来酸酐):n(醋酸乙烯酯)=5.0:5.0。讨论了在引发剂体系中引入还原剂构成氧化-还原体系对产品性能的影响。实验结果表明,当以m(还原剂):m(过硫酸铵)=0.6:1的氧化还原体系作引发剂时所得产品的溴值小于10 gBr／(100 g);当防垢剂质量浓度为5 mg／L时,防垢率达到96％,水相法合成产品达到溶剂法合成产品的性能指标;产品热稳定性较好,在150℃条件下处理5 h,与热处理前的防垢效果基本相当,说明该产品具有一定的耐温性。
The copolymer of maleic anhydride and vinyl acetate was synthesized with water as solvent. Synthetic conditions were discussed by using antifouling rate as target. The optimum condition was an initiating-agent/monomer weight ratio of 16/100, a reaction temperature of 65℃ , a reaction time of 3h, and a maleic-anhydride/vinyl-acetate molar ratio of 5. 0/5. 0 obtained from orthogonal tests. The influence of introducing reducing agent on product performance was investigated. The experimental results indicated that the product bromine value was less than 10gBr/(100g) at a reducing-agent/ ammonium-supersulfate weight ratio of 0. 6/1 as the initiating agent; the antifouling rate reached 96% at a concentration of antifouling agent of 5mg/L. The product showed good thermal stability, which antifouling effect after treating at 150℃ for 5h was almost equal to that of without heat treatment. The product performance reached the index of the product synthesized by solvent method.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2004年第9期58-60,共3页
Petroleum Processing and Petrochemicals
基金
"十五"国家科技攻关项目(2002BA312B)。
