聚醚醚酮酮（PEEKK）和含联苯结构聚醚醚酮酮（PEBEKK）共聚物的SAXS研究  

SAXS Studies of Poly(Ether Ether Ketone Ketone) and Poly(Ether Biphenyl Ether Ketone Ketone) Copolymers

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

机构地区：[1]中国科学院长春应用化学研究所,吉林大学化学系

出　　处：《应用化学》1996年第1期58-61,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学重点基金

摘　　要：应用一维电子密度相关函数方法，对含不同联苯结构的ＰＥＥＫＫ－ＰＥＢＥＫＫ共聚物样品小角Ｘ射线散射（ＳＡＸＳ）去模糊强度分析计算表明：ＰＥＥＫＫ－ＰＥＢＥＫＫ共聚物的聚集态结构明显地依赖于共聚物中联苯含量。当联苯含量ｎｂ＝０．３５时，积分不变量Ｑ，长周期Ｌ，平均结晶片层厚ｄ，电子密度差η_ｃ－η_ａ和结晶度Ｗ_（ｃ，ｘ）值为最小，比表面积Ｏ_ｓ为最大。Structural studies of poly(ether ether ketone ketone) and poly(ether biphenyl ether ketone ketone) copolymers by means of SAXS and one dimensional electron density correlation function methods revealed that the structure of the aggregated state of copolymers depended closely on the biphenyl content(n_b) in the copolymers. When n_b=0.35,the invariant Q,long period L,average crystal lamellae d and electron density difference ηc-ηa(obtained by SAXS analysis) and the degree of crystallinity W_(c,x) gave minimum values, but the specific inner surfaces O_s possessed maximum values.

关 键 词：PEEKK PEBEKK SAXS 共聚物 结晶度 

分 类 号：O632.32[理学—高分子化学] O631.13[理学—化学]