用DSC和TBA两种方法测定了苯乙烯-丙烯腈-N-苯基马来酰亚胺乳液共聚物的玻璃化温度Tg，研究了共聚物的流变性能,测定了共聚物的熔体流动指数n,发现共聚物的熔体流动指数越大,两种方法测定的共聚物的Tg的差值越大。
The glass transition temperature of styrene-acrylonitrile-N-phenyl-maleimide emulsion copolymer was determined by DSC and TBA method. The terpolymer′s rheological property and flow index n were studied. The result shows that Tg increases with the increasing PMI content while TgTBA and TgDSC of terpolymers showed different tends. The rheological studies show that TgTBA-TgDSC increases with the increasing of the terpolymer′s flow index.
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