首页> 外文OA文献 >The synthesis and characterization of polyoxo(2-chloro-1, 4-phenylene) oxy terephthaloyl-co-(2chloro-1, 4-oxy carbonyl methylene oxo terephthayoly-co oxy(2-chloro-1, 4-phenylene methylene oxy oxy terephthaloyl

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The synthesis and characterization of polyoxo(2-chloro-1, 4-phenylene) oxy terephthaloyl-co-(2chloro-1, 4-oxy carbonyl methylene oxo terephthayoly-co oxy(2-chloro-1, 4-phenylene methylene oxy oxy terephthaloyl

机译：聚氧代（2-氯-1，4-亚苯基）氧基对苯二甲酰-共-（2氯-1，4-氧羰基亚甲基）氧对苯二甲酸-氧（2-氯-1，4-亚苯基亚甲基）的合成与表征氧氧对苯二甲酸

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Two copolyesters were prepared in the melt from terephthalic acid, 1,4- phenylenediacetic acid, 2-chlo~ 1,4-phenylenediacetate and CXCX -diacetoxy-I ,4- phenylene. Neither polymer is observed to exhibit liquid crystalline properties. Polymer I has an inherent viscosity of O.39g/dl while polymer 2 has an inherent viscosity of O.64g/dl. The Thermal properties of both polymers are obtained. Thermogravimetric analysis result indicate that polymer I starn to loose weight at 2750 C, while polymer 2 which is more thermally stable only losses less than 5% of itu27s weight at 3500 C. Both polymers were characterized by FT-IR, lH NMR and 13c NMR, POM, DSC, TGA and viscosity.

机译：在熔体中由对苯二甲酸，1，4-苯二乙酸，2-氯-1，4-苯二乙酸酯和CXCX-二乙酰氧基-1，4-亚苯基制备了两种共聚酯。两种聚合物均未显示出液晶性质。聚合物I的特性粘度为0.39g / dl，而聚合物2的特性粘度为O.64g / dl。获得两种聚合物的热性能。热重分析结果表明，聚合物I在2750 C时凝结为松散的重量，而热稳定性更强的聚合物2在3500 C时损失仅不到其重量的5％。两种聚合物均通过FT-IR，1H NMR和13c NMR，POM，DSC，TGA和粘度。

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Thuo Njeri;
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年度 1992
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The synthesis and characterization of polyoxo(2-chloro-1, 4-phenylene) oxy terephthaloyl-co-(2chloro-1, 4-oxy carbonyl methylene oxo terephthayoly-co oxy(2-chloro-1, 4-phenylene methylene oxy oxy terephthaloyl

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