The melted copolyesters exhibit good liquid crystallinity in some range of the copolyester compositions.
在一定的组成范围内，共聚酯熔体有很好的液晶性。
It was found that all copolyesters are thermotropic nematic liquid crystals with wide mesomorphic temperature range.
结果发现各共聚酯均为向列型热致液晶，并都具有较宽的液晶态温度范围。
Progress on biodegradable aliphatic-aromatic copolyesters based on aliphatic and aromatic diacids, diols and ester monomers was reviewed.
综述了以脂肪族酯和芳香族酯为单体制备生物可降解脂肪族-芳香族共聚酯的研究进展。
The thermotropic liquid crystalline block copolyesters with flexible space group in main chain were synthesized via solution polycondensation.
用溶液缩聚法合成了含柔性间隔基的嵌段热致液晶共聚酯。
The Lnk1 and T(?) of copolyester with 10% m-benzene dicarbonic acid were smallest, and it's mechanical properties were also best in all studied copolyesters.
均下降，同时，力学性能也下降，但间苯二甲酸含量为10％的共聚酯的力学性能最佳。
The experimental results show that the changes of melt peaks of copolyesters with changing of S. S. P. temperature and time are different from PET homopolymer.
研究发现，共聚酯的熔融峰随着固相聚合温度和时间的变化而与纯PET有明显的差别；
Partially substituting for ethylene glycol (EG), 1, 4-cyclohexanedimethanol (CHDM) was copolymerized with terephthalic acid (PTA) to produce copolyesters (PETG).
以1,4 -环己烷二甲醇(CHDM)部分替代乙二醇(EG)与对苯二甲酸(PTA)共聚合成共聚酯(PETG)。
The producing process of phosphorus series inflaming retarding copolyesters with copolymerizing method was introduced, and the properties of products were studied.
介绍了共聚法磷系阻燃共聚酯的生产过程，并对产品性能进行了研究。
The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.
由对乙酰氧基苯甲酸、对苯二酚二乙酯、2，6-萘二甲酸及间苯二甲酸四种单体通过熔融缩聚反应，合成了全芳香族四组分共聚酯。
The wholly aromatic four-component copolyesters were prepared from p-acetoxy-benzoic acid, hydroquinone diacetate, 2,6-naphthalene dicarboxylic acid and isophthalic acid by melting polycondensation.
由对乙酰氧基苯甲酸、对苯二酚二乙酯、2，6-萘二甲酸及间苯二甲酸四种单体通过熔融缩聚反应，合成了全芳香族四组分共聚酯。
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