摘要
根据Ｆｌｏｒｙ热力学统计理论和比容－熔融热作国法，由ＤＳＣ结果得到了不同联苯含量的聚醚醚酮酮－含联苯聚醚醚酮酮（ＰＥＥＫＫ－ＰＥＢＥＫＫ）共聚物的熔融热，两种方法获得的结果吻合。在此基础上给出了ＰＥＥＫＫ－ＰＥＢＥＫＫ共聚物不同联苯含量的熔点计算表达式。结果还表明，随着联苯含量ｎＢ，的变化，明显改变；当ｎＢ＝０．３５时，ＰＥＥＫＫＰＥＢＥＫＫ共聚物的值最小。
on the basis of DSC measurements,th.values of the fusion heat for PEEKK-PEBEKK copolymers with various biphenyl contents were obtained by using thermodynamics statistical theory proposed by Flory and graphical method of the specific volume-fusion heat.The results reveal that values determined by these two methods for PEEKK-PEBEKK copolymers with various biphenyl content are nearly the same,and that values are closely dependent on biphenyl content.value is minimum at nB=0.35.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第7期1133-1136,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
熔融热
DSC
聚醚醚酮酮
联苯聚醚醚酮酮
共聚物
Poly(ether ether ketoner ketone)-poly(ether biphenyl ether ketone ketone)copolymer,Fusion heat,DSC
