| 聚醚醚酮酮（PEEKK）－含联苯聚醚醚酮酮（PEBEKK）共聚物的T_g和T_m转变 |
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| 引用本文： | 张宏放,莫志深,那辉,吴忠文. 聚醚醚酮酮（PEEKK）－含联苯聚醚醚酮酮（PEBEKK）共聚物的T_g和T_m转变[J]. 应用化学, 1996, 0(2) |
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| 作者姓名： | 张宏放 莫志深 那辉 吴忠文 |
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| 作者单位： | 中国科学院长春应用化学研究所，吉林大学化学系 |
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| 摘 要： | 不同联苯含量的ＰＥＥＫＫ－ＰＥＢＥＫＫ共聚物的ＤＳＣ结果表明，随着联苯含量的增加，共聚物的玻璃化转变温度几逐渐升高；共聚物的熔点Ｔｍ明显地依赖于联苯含量，当联苯含量ｎＢ＝０．３５时，Ｔｍ值最４小。热处理可以显著地改善共聚物的结晶性，并出现熔融重结晶双峰。
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| 关 键 词： | 含联苯聚醚醚酮酮共聚物，T_g和T_m转变，DCS，热处理 |
Transformation of T_g and T_m for PEEKK-PEBEKK Copolymers with Various Biphenyl Content |
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| Zhang Hongfang, Mo Zhishen. Transformation of T_g and T_m for PEEKK-PEBEKK Copolymers with Various Biphenyl Content[J]. Chinese Journal of Applied Chemistry, 1996, 0(2) |
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| Authors: | Zhang Hongfang Mo Zhishen |
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| Abstract: | Transformational behaviour of Tg and Tm for PEEKK-PEBEKK copolymers with various biphenyl content was studied by using DSC. Results revealed that the glass transition temperature Tg for the copolymers gradually increased with increasing biphenyl content nB. The melting points Tm of the copolymers obviously depended on nB. Tm value was minimum when nB=0. 35. Heat behaviour of the copolymers could be markedly changed by heat treatment. Behaviour of double melting peak for the copolymer resulted from the crystal melting and the recrystallization was also studied. |
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| Keywords: | poly (ether ether Ketone ketone)-poly (ether biphenyl ether ketone ketone) copolymer transformation of T_g and T_m DSC heat treatment |
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