| PEEK-PEDEK嵌段共聚物的合成与热性能研究 |
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| 引用本文： | 王汉夫,赵晓刚,刘新才,陈梁,王力风,陈春海,吴忠文.PEEK-PEDEK嵌段共聚物的合成与热性能研究[J].高等学校化学学报,2004,25(6):1156-1159. |
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| 作者姓名： | 王汉夫 赵晓刚 刘新才 陈梁 王力风 陈春海 吴忠文 |
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| 作者单位： | 吉林大学化学学院, 长春 130023 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 0 10 40 0 3 )资助 |
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| 摘 要： | 在亲核取代基础上通过分步加料法合成了一系列联苯含量不同的PEEK-PEDEK嵌段共聚物,并对其热性能与结晶行为进行了初步研究.结果表明,联苯的引入明显提高了聚合物的玻璃化转变温度;聚合物的熔点随联苯含量的增加呈先下降后上升的变化规律,体系在联苯含量为20%处出现最低共熔点.
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| 关 键 词： | 聚醚醚酮(PEEK) 嵌段共聚物 动态扫描示差热分析(DSC) 广角X射线衍射分析(WAXD) |
| 文章编号： | 0251-0790(2004)06-1156-04 |
| 收稿时间： | 2003-04-07 |
Synthesis and Thermal Properties of PEEK-PEDEK Block Copolymers |
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| WANG Han-Fu,ZHAO Xiao-Gang,LIU Xin-Cai,CHEN Liang,WANG Li-Feng,CHEN Chun-Hai,WU Zhong-Wen.Synthesis and Thermal Properties of PEEK-PEDEK Block Copolymers[J].Chemical Research In Chinese Universities,2004,25(6):1156-1159. |
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| Authors: | WANG Han-Fu ZHAO Xiao-Gang LIU Xin-Cai CHEN Liang WANG Li-Feng CHEN Chun-Hai WU Zhong-Wen |
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| Institution: | College of Chemistry, Jilin University, Changchun 130023, China |
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| Abstract: | A series of PEEK-PEDEK block copolymers were synthesized by one step method. Their crystallization and melting behavior were analyzed by Differential Scanning Calorimeter (DSC) and Wide Angle X-ray Diffraction (WAXD). The results show that the glass transition temperature of the copolymer increases obviously as a result of the introduction of biphenyl (BP) units. With the increasing of BP molar fraction,the melting point presents a down and up trend whereas the lowest melting point turns out at a point where the molar fraction of biphenyl is 20%. WT5HZ] |
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| Keywords: | PEEK Block copolymer DSC WAXD |
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