在一定的组成范围内，共聚酯熔体有很好的液晶性。
The melted copolyesters exhibit good liquid crystallinity in some range of the copolyester compositions.
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 thermotropic liquid crystalline block copolyesters with flexible space group in main chain were synthesized via solution polycondensation.
指出液晶共聚酯纤维具有比全芳族聚酰胺纤维高的综合性能。
The liquid crystalline polyester fibers exhibit higher comprehensive properties than wholly aromatic polyamide fibers.
结果表明，共聚酯的熔点和结晶度均随新戊二醇的加入而降低。
The results showed that both the melt point and crystallinity of the copolymers decreased with the increase of neopentyl glycol content in copolymer.
介绍用甲醇醇解法把聚酯或共聚酯解聚成二元酸二甲酯和二元醇。
The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis.
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 producing process of phosphorus series inflaming retarding copolyesters with copolymerizing method was introduced, and the properties of products were studied.
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。
It was found that all copolyesters are thermotropic nematic liquid crystals with wide mesomorphic temperature range.
通过对几种典型聚酯切片的DSC分析，探讨了影响共聚酯热性能的原因。
The reasons that have effect on the thermal characteristics of copolyester were studied through the DSC analysis of several typical polyester chips.
本文对多功能共聚酯在常规纺丝过程中的树酯质量和纺丝工艺进行了研究。
This article studies the process parameters of multifunctional Polymer-blend Polyester resin and quality in the process of conventional spinning.
共聚酯注塑样品的物理和机械性能指标受1，4-环己烷二甲醇加量影响。
The physical and mechnical properties of the sample injected are depend on 1,4-cyclohexanedimethanol content.
本文利用聚酯(PET)废料为基本原料，进行了合成共聚酯热熔胶的研究。
Copolyester hot-melt adhesives for interlining industry may be obtained by depolymerization of waste PET, esterification and polycondensation.
合成的嵌段共聚酯醚与PET共混纺丝可以显著改善pet纤维的抗静电性能。
The antistatic properties of PET fibers blended with the aforesaid block copolymers was remarkably improved.
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。
Progress on biodegradable aliphatic-aromatic copolyesters based on aliphatic and aromatic diacids, diols and ester monomers was reviewed.
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 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.
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；
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.
运用差示扫描量热法(dsc)等分析手段研究了PET -PBT共聚酯的结晶性能。
The crystallization property of PET-PBT copolyester has been investigated by means of differential scanning calorimetry (DSC) and X-ray in this paper.
研究发现，共聚酯碱水解速度随aa、SIPM添加量增加而增加，随BD添加量增加而减少。
It was found that the alkali hydrolytic rate of copolyester increased with the increasing of AAand SIPM, while decreased with the increasing of BD.
当间苯二甲酸的含量为10％、15％和50％（摩尔）时，共聚酯显示出热致性中介相的光学性质。
When the copolyester contains 10%, 15%, or 50% (mol) isophthalic acid, it displays the optical property of the thermotropic mesomorphic phase;
间苯二甲酸是一种重要的有机化工产品，在醇酸树脂、不饱和聚酯、酸改性共聚酯等方面具有广泛的用途。
Isophthalic acid is an important organic chemical product with wide application in alkyd resin, unsaturated polyester resin and acid-modified copolyester etc.
又对该共聚酯的纺丝工艺和拉伸条件进行试验，得到了合适的纺丝和拉伸工艺，讨论了拉伸条件对纤维性能的影响。
By measuring spinning technology and drawing condition of the copolyester, suitable spinning conditions were obtained. And effects of drawing condition on properties of the fibers were discussed.
TGA结果表明，随着共聚单体BPDA投料量的增加，共聚酯的热分解温度和热分解残留量都有比较明显的提高。
Furthermore, TGA results showed that with the increasing contents of BPDA, the thermal decomposition temperatures and thermal decomposition residues of the copolyester increased obviously.
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)。
Partially substituting for ethylene glycol (EG), 1, 4-cyclohexanedimethanol (CHDM) was copolymerized with terephthalic acid (PTA) to produce copolyesters (PETG).
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.
发现含香草酸第三单体的PHB/PET/VA三元共聚酯具有较快共聚反应速率、较低熔融温度、典型热致液晶行为和良好成纤性。
The results show that PHB/PET/VAter-polyester with vanillic acid has faster copolycondensation rate, lower melting temperature, typical thermotropic liquid crystallinity and better spinnability.
在没有固相聚合的情况下制备的共聚酯包装树脂，在降低的粘度改变下加工该共聚酯树脂的方法，和通过该方法制备的容器及其它制品。
Co-polyester packaging resins prepared without solid-state polymerization, a method for processing the co-polyester resins with reduced viscosity change, and containers and other articles prepared by.
并将谱带的变温行为与液晶转变相关联。结果表明，芳香共聚酯热致性液晶中液晶基元之间的相互作用很强而柔性间隔链之间的相互作用很弱。
The result suggests that the interaction between the mesogenic cores is dominant in forming the mesophase, while the interaction between flexible chain spacers is very weak.
在聚酯中引入刚性链段（即将脂肪族聚酯与芳香族、液晶基元共聚合）可改善聚酯的加工性能；
The processability of polyesters could be improved significantly after incorporating stiff chain segment through copolymerization of aliphatic polyester with aromatic liquid crystal element.
采用SALS等方法研究了低硬段含量的聚酯-聚醚多嵌段共聚物中硬段结晶时的球晶生长规律。
The spherulite growth behaviour of hard segment has been studied by SALS and other techniques for polyester-polyether block copolymers with low hard segment content.
采用SALS等方法研究了低硬段含量的聚酯-聚醚多嵌段共聚物中硬段结晶时的球晶生长规律。
The spherulite growth behaviour of hard segment has been studied by SALS and other techniques for polyester-polyether block copolymers with low hard segment content.
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