聚醚醚酮酮和含联苯聚醚醚酮酮共聚物的熔融热  

Studies on the Fusion Heat of Poly(ether ether ketone ketone)Poly(ether biphenyl ether ketone ketone) Copolymers

作　　者：那辉[1] 吴忠文[1] 张宏放[1] 杨宝泉[1] 王尚尔[1] 莫志深[1] 

机构地区：[1]吉林大学化学系,中国科学院长春应用化学研究所

出　　处：《高等学校化学学报》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

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.

关 键 词：熔融热 DSC 聚醚醚酮酮 联苯聚醚醚酮酮 共聚物 

分 类 号：O633.1[理学—高分子化学] O642.1[理学—化学]