| 热致液晶共聚酯PET／60PHB的合成及性能研究 |
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| 引用本文： | 洪定一,吕占霞.热致液晶共聚酯PET／60PHB的合成及性能研究[J].合成树脂及塑料,1995,12(3):1-8,19. |
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| 作者姓名： | 洪定一 吕占霞 |
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| 作者单位： | 中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院，中国石化北京燕山石化公司研究院 北京，102500，北京，102500，北京，102500，北京，102500，北京，102500，北京，102500，北京，102500 |
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| 摘 要： | 通过研究影响ＰＥＴ／６０ＰＨＢ对数比浓粘度的诸多因素，确定了缩聚反应的最佳工艺条件，并在该下合成了对数比浓粘度达０．７以上的ＰＥＴ／６０ＰＨＢ共聚酯，用ＮＭＲ，ＩＲ，ＰＯＭ，ＤＳＣ，ＷＡＸＤ和流变学等方法对其结构和液晶性进行了研究和分析，结果表明，合成的聚合物ＰＥＴ／６０ＰＨＢ（ＹＳＴＬ－１）确系ＰＥＴ与ＰＨＢ的无规共聚酯，属向列相热致液晶，加工试验表明，该共聚酯具有优良的加工流动性，其力学性能，
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| 关 键 词： | 热致液晶聚合物 共聚酯 合成 PET PHB 流动性 |
Studies on the Synthesis and Properties of Thermotropic Liquid Crystalline Copolyesters PET/60PHB |
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| Hong Dingyi,Lu Zhanxia . Ma Yunqian,Yang Shengying,Ding Jian . Ma Dongjieand Bai Jingjin.Studies on the Synthesis and Properties of Thermotropic Liquid Crystalline Copolyesters PET/60PHB[J].China Synthetic Resin and Plastics,1995,12(3):1-8,19. |
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| Authors: | Hong Dingyi Lu Zhanxia Ma Yunqian Yang Shengying Ding Jian Ma Dongjieand Bai Jingjin |
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| Affiliation: | Research Institute of Beijing Yanshan Petrochemical Corporation . SINOPEC |
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| Abstract: | The best technological conditions of condensation polymerization were determined through investigating many factors which influenced the inherent viscosity of PET/60PHB. PET/60PHB copolyesters whose inherent viscosity was above 0. 7 was prepared under these conditions. Its structrue and liquid crystallinity were studied by NMR,IR, POM, DSC, WAXD and capillary rheometer. It showed that the copolyesters PET/60PHB (YSTL-1) were surly the copolyesters of PET and PHB , and it belonged to nematic thermotropic liquid crystalline. The results of processing experiments stated that the copolyesters had excellent fluidity . The mechnical propertie,heat resistance and electric insulations of copolyesters (YSTL-1) reached or surpassed the properties of the same foreign products . Its tensile strength was above 600MPa . coefficient of thermal expansion was close to that of ceramics. |
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| Keywords: | thermotropic liquid crystalline polymers copolyesters synthesis properties |
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