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苯乙烯(S)和马来酸酐(MA)自由基引发共聚反应,生成共聚物SMA,是典型的交替共聚。本文介绍了在40t/a的苯乙烯类本体聚合装置试验生产SMA的流程,探讨了影响SMA本体引发连续共聚合工艺的因素。同时,通过对生成物SMA的性能测试,分析得出苯乙烯—马来酸酐共聚物SMA的耐热性明显高于苯乙烯单体均聚物聚苯乙烯(PS),使得苯乙烯类树脂在耐热性方面扩大了使用范围。
Styrene (S) and maleic anhydride (MA) free radical initiated copolymerization, resulting in copolymer SMA, is a typical alternating copolymerization. In this paper, the process of SMA production in a 40t / a styrenic bulk polymerization plant was introduced. The factors affecting the initiation of continuous copolymerization of SMA bulk were discussed. At the same time, through the performance test of the resultant SMA, the heat resistance of the styrene-maleic anhydride copolymer SMA is obviously higher than that of the styrene monomer homopolymer polystyrene (PS), so that the styrene resin Heat resistance has expanded the use of.