SYNTHESIS AND MESOGENIC PROPERTIES OF 4 SERIES OF POLYESTERS DERIVED FROM DICARBOXYLIC AND DIHYDROXYLIC AROMATIC MONOMERS

被引:7
作者
BARBERA, J [1 ]
NAVARRO, F [1 ]
ORIOL, L [1 ]
PINOL, M [1 ]
SERRANO, JL [1 ]
机构
[1] UNIV ZARAGOZA,CSIC,FAC CIENCIAS,INST CIENCIA MAT ARAGON,E-50009 ZARAGOZA,SPAIN
关键词
D O I
10.1002/pola.1990.080280402
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Some members of four series of polyesters were synthesized by the direct polycondensation of two types of dicarboxylic acids (4,4′‐dicarboxy‐α,ω‐diphenoxyalkanes and 4,4′‐dicarboxy‐α,ω‐dibenzoyloxyalkanes) with two types of bisphenols (4,4′‐dihydroxy‐α,ω‐diphenoxyalkanes and 4,4′‐dihydroxy‐α,ω‐dibenzoyloxyalkanes) using tosyl chloride in pyridine in the presence of N, N‐dimethylformamide. The 1H‐NMR spectra of the polymers synthesized showed that these polymers have an ordenated structure. The mesogenic properties of these polymers were studied by optical microscopy and differential scanning calorimetry. Many of the polymers show nematic mesomorphism. Copyright © 1990 John Wiley & Sons, Inc.
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页码:703 / 715
页数:13
相关论文
共 18 条
[1]   A STUDY OF THE STRUCTURE - MESOGENIC BEHAVIOR RELATIONSHIP IN 3 TYPES OF LIQUID-CRYSTALS (6-N-ALKOXY-3-PYRIDINECARBOXALDEHYDE DERIVATIVES, 5-N-ALKOXY-2-PYRIDINECARBOXALDEHYDE DERIVATIVES AND 4-N-ALKOXYBENZALDEHYDE DERIVATIVES) USING SPECTROSCOPIC AND SEMIEMPIRICAL METHODS OF CALCULATION (MNDO) [J].
BARBERA, J ;
MARCOS, M ;
SERRANO, JL .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1987, 149 :225-241
[2]   TRITIUM EXCHANGE STUDIES ON POLY(ETHYLENE TEREPHTHALATE) [J].
CHA, CY .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER LETTERS, 1964, 2 (11P) :1069-&
[3]   THE RECENT DEVELOPMENTS OF THERMOTROPIC LIQUID-CRYSTALLINE POLYMERS [J].
CHUNG, TS .
POLYMER ENGINEERING AND SCIENCE, 1986, 26 (13) :901-919
[4]   GROUND-STATES OF MOLECULES .39. MNDO RESULTS FOR MOLECULES CONTAINING HYDROGEN, CARBON, NITROGEN, AND OXYGEN [J].
DEWAR, MJS ;
THIEL, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (15) :4907-4917
[5]   GROUND-STATES OF MOLECULES .38. MNDO METHOD - APPROXIMATIONS AND PARAMETERS [J].
DEWAR, MJS ;
THIEL, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (15) :4899-4907
[6]   FACTORS INFLUENCING STABILITIES OF NEMATIC LIQUID-CRYSTALS [J].
DEWAR, MJS ;
RIDDLE, RM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (23) :6658-6662
[7]   SYNTHESIS OF POTENTIAL RICKETTSIOSTATIC AGENTS .1. 4,4'-DICARBOXY-ALPHA,OMEGA-DIPHENOXYALKANES [J].
DONAHOE, HB ;
FENNOY, LV ;
GREIFF, D ;
BENJAMIN, LE .
JOURNAL OF ORGANIC CHEMISTRY, 1961, 26 (02) :474-&
[8]  
GALLI G, 1982, MAKROMOL CHEM-RAPID, V3, P543
[9]   MESOGENIC POLYMERS .3. THERMAL-PROPERTIES AND SYNTHESIS OF 3 HOMOLOGOUS SERIES OF THERMOTROPIC LIQUID-CRYSTALLINE BACKBONE POLYESTERS [J].
GRIFFIN, AC ;
HAVENS, SJ .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1981, 19 (06) :951-969
[10]  
GRIFFIN AC, 1979, MOL CRYST LIQ CRYST, V49, P329