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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 (Tg) of the styrene-acrylonitrile-N-phenylmaleimide emulsion copolymer was measured by DSC and TBA. The rheological properties of the copolymer were investigated. The melt flow The index n found that the greater the melt flow index of the copolymer, the greater the difference in Tg between the copolymers determined by the two methods