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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >SYNTHESIS AND PROPERTIES OF AROMATIC POLY (ETHER SULFONE)S AND POLY(ETHER KETONE)S CONTAINING NAPHTHALENE OR QUINOLINE UNITS, AND METHYL-SUBSTITUTED BIPHENYL-4,4′-DIOLS
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SYNTHESIS AND PROPERTIES OF AROMATIC POLY (ETHER SULFONE)S AND POLY(ETHER KETONE)S CONTAINING NAPHTHALENE OR QUINOLINE UNITS, AND METHYL-SUBSTITUTED BIPHENYL-4,4′-DIOLS

机译:包含萘或喹啉单元,甲基取代的联苯-4,4'-二酚的芳族聚(醚砜)S和聚(醚酮)芳烃的合成与性能

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摘要

A series of poly(ether sulfone)s and poly(ether ketone)s were synthesized from combinations of 1,5- and 2,6-bis(4-fluorosulfonyl)naph-thalene, 2,6-bis(4-fluorobenzoyl)naphthalene, and 2,6-bis(4-fluorobenz-oyl)quinoline with 3,3′,5,5′-tetramethylbiphenyl-4,4′-diol and 2,2′,3,3′, 5,5′-hexamethylbiphenyl-4,4′-diol. The polycondensations proceeded quantitatively in diphenylsulfone in the presence of anhydrous potassium carbonate to afford polymers with inherent viscosities between 0.40 and 1.28 dL/g measured in N-methyl-2-pyrrolidone or concentrated sulfuric acid. The tetramethyl- and hexamethyl-substituted aromatic polyethers exhibited good thermal stability, did not decompose below 330℃ in both air and nitrogen atmospheres, and had higher glass transition temperatures than the corresponding unsubstituted polymers. The methyl-substituted poly(ether sulfone)s and poly(ether ketone)s showed good solubility in such common organic solvents as N-methyl-2-pyrrolidone, N,N-dimethylacetamide, tetrahydrofuran, chloroform, and 1,4-di-oxane.
机译:由1,5-和2,6-双(4-氟磺酰基)萘-萘,2,6-双(4-氟苯甲酰基)的组合合成了一系列聚醚砜和聚醚酮萘和2,6-双(4-氟苯甲酰基)喹啉与3,3',5,5'-四甲基联苯-4,4'-二醇和2,2',3,3',5,5' -六甲基联苯-4,4'-二醇。在无水碳酸钾存在下,缩聚反应在二苯砜中进行,以定量得到的聚合物的固有粘度在N-甲基-2-吡咯烷酮或浓硫酸中为0.40至1.28 dL / g。四甲基和六甲基取代的芳族聚醚表现出良好的热稳定性,在空气和氮气气氛下在330℃以下均不分解,并且具有比相应的未取代聚合物更高的玻璃化转变温度。甲基取代的聚醚砜和聚醚酮在N-甲基-2-吡咯烷酮,N,N-二甲基乙酰胺,四氢呋喃,氯仿和1,4-二甲醚等常见有机溶剂中显示良好的溶解性-恶烷。

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