Comparison of the structure and thermal properties of a poly(aryl ether ketone ether ketone naphthyl ketone) with those of poly(aryl ether ketone ether ketone ketone)
Comparison of the structure and thermal properties of a poly(aryl ether ketone ether ketone naphthyl ketone) with those of poly(aryl ether ketone ether ketone ketone)
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聚芳醚酮醚酮萘酮与聚芳醚酮醚酮酮的结构和热性能比较
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发表时间：
2007
期刊：
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通讯作者：
M. Koch
中科院分区：
文献类型：
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作者：
M. Dosière;Didier Villers;M. Zolotukhin;M. Koch
聚(氧-1，4-苯氧基-1，4-苯氧基-1，4-亚苯基-2，6-萘甲酰基-1，4-亚苯基)或2，6-聚芳醚酮(2，6-PEKEKNK)是一种聚芳醚酮类聚合物，与PEKEKK不同，它在2位和6位分别与两个酮基相连。以2，6-萘二甲酸氯化物和4，4‘-二(4-苯氧基)二苯甲酮为原料，在三氯化铝存在下，通过亲电沉淀缩聚反应合成了2，6-二(4-苯氧基)二苯甲酮。由初始非晶态拉伸薄膜确定的正交晶胞尺寸为：a=0.778 nm，b=0.613 nm，c=5.52nm.与PEKEKK相比，未发现2，6-PEKEKNK的多态现象。其玻璃化转变温度和熔融温度分别比PEKEKK高20℃和2℃。
Abstract Poly(oxy-1,4-phenylene carbonyl-1,4-phenylene oxy-1,4-phenylene carbonyl-2,6-naphthalene carbonyl-1,4-phenylene) or 2,6-PEKEKNK is a polymer of the poly(aryl ether ketone) family differing from PEKEKK by the presence of a naphthyl group linked at positions 2 and 6 to the two ketone groups. It is synthesized by electrophilic precipitation polycondensation of 2,6- naphthalenedicarboxylic acid chloride with 4,4’-bis-(4-phenoxy) benzophenone in the presence of aluminium chloride. The dimensions of the orthorhombic unit cell determined from an initially amorphous, stretched film are: a = 0.778 nm, b = 0.613 nm, c = 5.52 nm. In contrast with PEKEKK no signs of polymorphism were found for 2,6 PEKEKNK. Its glass transition and melting temperatures are 20 °C and 2 °C above those of PEKEKK, respectively.