Single-point Dtermination of Intrinsic Viscosity of Wholly Aromatic Thermotropic Copolyesters in 1,1,1,3,3,3-Hexafluoro-2-Propanol

Yongjian Liu

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Single-point Dtermination of Intrinsic Viscosity of Wholly Aromatic Thermotropic Copolyesters in 1,1,1,3,3,3-Hexafluoro-2-Propanol

机译：单点测定全氟芳香族共聚酯在1,1,1,3,3,3-六氟-2-丙醇中的固有粘度

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摘要

A series of wholly aromatic thermotropic copolyesters based on 4-hydroxybenzoic acid, hydroquinone,a dn 2,6-naphthalene dicarboxylic aicd were synthesized by direct melt polymerization with or without different added transesterification catalysts. Nine procedures for calculation of the intrinsic viscosities from a single viscosity measurement for polymer solutions, including a proposed one, were applied for the thermotropic copolyesters in 1,1,1,3,3,3-hexafluoro-2-propanol at 30 deg C. Various forms of the Huggins and Kreamar equations, singly or combined, yielded intrinsic viscosities that were in good agreement with extrapolated values obtained in the usual manner from multipoint viscosity measurements over a wide range of concentrations.

机译：通过直接熔融聚合，添加或不添加不同的酯交换催化剂，合成了一系列基于4-羟基苯甲酸，氢醌，dn 2,6-萘二羧酸的全芳族热致共聚酯。在30°C下将1,9,1,1,3,3,3-六氟-2-丙醇在1,1,1,3,3,3-六氟-2-丙醇中的热致共聚酯应用了九种方法，从聚合物溶液的单次粘度测量中计算出特性粘度。各种形式的Huggins和Kreamar方程（单独或组合）产生的本征粘度与在宽范围的浓度范围内通过多点粘度测量以通常方式获得的外推值非常吻合。

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《Journal of Applied Polymer Science》 |2001年第14期|共6页
作者
Yongjian Liu;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
关键词
wholly aromatic thermotropic copolyester; intrinsic viscosity; singlepoint determination of intrinsic viscosity;

机译：全芳族热致共聚酯;本征粘度;特性粘度的单点测定;

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1. Single-point Dtermination of Intrinsic Viscosity of Wholly Aromatic Thermotropic Copolyesters in 1,1,1,3,3,3-Hexafluoro-2-Propanol [J] . Yongjian Liu Journal of Applied Polymer Science . 2001,第14期

机译：单点测定全氟芳香族共聚酯在1,1,1,3,3,3-六氟-2-丙醇中的固有粘度
2. Synthesis, characterization, and thermal properties of phosphorus-containing, wholly aromatic thermotropic copolyesters [J] . Wang YZ., Chen XT., Tang XD. Journal of Applied Polymer Science . 2002,第5期

机译：含磷全芳族热致共聚酯的合成，表征和热性能
3. Thermal Transition of a Wholly Aromatic Thermotropic Liquid Crystalline Copolyester [J] . Huguang Bi, Yi Zhang, Haishan Bu, Journal of Polymer Science, Part A. Polymer Chemistry . 1999,第20期

机译：全芳族热致液晶共聚酯的热转变
4. New wholly-aromatic thermotropic polyesters with controlled flexibility [C] . D.S.Nagvekar, P.T.Mather, H.G.Jeon, Symposium on Liquid Crystal Materials and Devices, held April 5-7, 1999, San Francisco, California, U.S.A. . 1999

机译：具有可控制的柔韧性的新型全芳族热塑性聚酯
5. INTERMOLECULAR INTERACTIONS OF ALCOHOLS: METHANOL, 2,2,2-TRIFLUOROETHANOLAND 1,1,1,3,3,3-HEXAFLUORO-2-PROPANOL [D] . FARNHAM, SUTTON BURNS. -1

机译：醇的分子间相互作用：甲醇，2,2,2-三氟乙基土地1,1,1,3,3,3-六氟-2-丙醇
6. Improved Schmidt Conversion of Aldehydes to Nitriles Using Azidotrimethylsilane in 1,1,1,3,3,3-Hexafluoro-2-propanol [O] . Hashim F. Motiwala, Qin Yin, Jeffrey Aubé 2015

机译：azidotrimethylsilane在1,1,1,3,3,3-六氟-2-丙醇中改进施密特醛转化为腈
7. Liquid Crystal Polymers: Thermotropic Rigid Aromatic Copolyesters with Bisphenol Spacers [R] . Lenz, R. W., Jin, J. I. 1981

机译：液晶聚合物：具有双酚间隔物的热致刚性芳族共聚酯

Single-point Dtermination of Intrinsic Viscosity of Wholly Aromatic Thermotropic Copolyesters in 1,1,1,3,3,3-Hexafluoro-2-Propanol

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