High Pressure DTA Study on the Melting and Crystallization of Poly(ε-caprolactone) in a Mixture with Poly(styrene-co-acrylonitrile)
High Pressure DTA Study on the Melting and Crystallization of Poly(ε-caprolactone) in a Mixture with Poly(styrene-co-acrylonitrile)
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聚(ε-己内酯)与聚(苯乙烯-丙烯腈)混合物的熔融和结晶的高压DTA研究
DOI：
10.1295/polymj.21.781
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发表时间：
1989
期刊：
影响因子：
2.8
通讯作者：
C. Nakafuku
中科院分区：
文献类型：
--
作者：
C. Nakafuku
采用高压差热分析（DTA）方法研究了聚（苯乙烯-丙烯腈）（SAN）共混对聚己内酯（PCL）在500 MPa高压下熔融和结晶过程的影响。在0.1 MPa下结晶的PCL的熔融温度的压力系数为0.179 K MPa-1，并且其随着混合物中PCL含量的减少而略微增加。在高达500 MPa的高压下测定了二元混合物在PCL熔融和结晶方面的相图。随着SAN含量的增加，PCL的DTA曲线结晶放热峰向低温侧移动，峰宽变宽，且在高压下这一趋势更为明显。
The effects of mixing of poly(styrene-co-acrylonitrile) (SAN) on the melting and crystallization process of poly(ε-caprolactone) (PCL) were studied under high pressures up to 500 MPa by high pressure differential thermal analysis (DTA). The pressure coefficient of the melting temperature of PCL crystallized at 0.1 MPa was 0.179 K MPa−1 and it slightly increased with decreasing PCL content in the mixture. The phase diagram of the binary mixture in terms of melting and crystallization of PCL was determined under high pressure up to 500 MPa. The exothermic peak of crystallization of PCL in DTA curve shifts to the low temperature side and becomes broad with increasing SAN content in the mixture and this trend is remarkable at elevated pressure.