首页> 外文期刊>Journal of Applied Polymer Science >STUDIES ON THE SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLY(AMIDE-ESTER-IMIDE) DERIVED FROM N-(HYDROXYPHENYL)PHTHALIMIDE-4-CARBOXYLIC ACID WITH AMINO ACID
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STUDIES ON THE SYNTHESIS AND PROPERTIES OF THERMOTROPIC LIQUID CRYSTALLINE COPOLY(AMIDE-ESTER-IMIDE) DERIVED FROM N-(HYDROXYPHENYL)PHTHALIMIDE-4-CARBOXYLIC ACID WITH AMINO ACID

机译:N-(羟苯基)邻苯二甲酰亚胺-4-羧酸与氨基酸衍生的热液性液晶钴(酰胺-酰亚胺-酰亚胺)的合成与性能研究

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Three series of copoly (amide-ester-imide)s were prepared from amino acid (4-aminobenzoic acid, 3-aminobenzoic acid, or 6-aminohexanoic acid) and N-(4-hydroxyphenyl)phthalimide-4-carboxylic acid (M1), N-(3-hydroxyphenyl)phthalimide-4-carboxylic acid (M2), or N-(2-methyl-4-hydroxyphenyl)phthalimide-4-carboxylic acid (M3) in the presence of diphenylchlorophosphate (DPCP) and pyridine as direct condensation agents. The inherent viscosities of copoly (amide-ester-imide) s were in the range of 0.13-0.95 dL/g. Thermotropic liquid crystalline (LC) behavior of these polymers was examined by differential scanning calorimetry (DSC) and optical polarizing microscopy. These copoly(amide-ester-imide)s (IIa, IIc, IIIa, and IIIc) polymerized from S-aminobenzoic acid or 6-aminohexanoic acid with M1 or M3, respectively, showed thermotropic liquid crystalline behavior in the range of 190-426 degrees C. (C) 1995 John Wiley and Sons, Inc. [References: 20]
机译:由氨基酸(4-氨基苯甲酸,3-氨基苯甲酸或6-氨基己酸)和N-(4-羟基苯基)邻苯二甲酰亚胺-4-羧酸(M1)制备三组共聚(酰胺-酯-酰亚胺) ),N-(3-羟苯基)邻苯二甲酰亚胺-4-羧酸(M2)或N-(2-甲基-4-羟苯基)邻苯二甲酰亚胺-4-羧酸(M3)在二苯基氯磷酸酯(DPCP)和吡啶存在下作为直接缩合剂。共聚(酰胺-酯-酰亚胺)的固有粘度在0.13-0.95dL / g的范围内。通过差示扫描量热法(DSC)和光学偏振显微镜检查了这些聚合物的热致液晶(LC)行为。这些分别由S-氨基苯甲酸或6-氨基己酸分别与M1或M3聚合的共聚(酰胺-酯-酰亚胺)(IIa,IIc,IIIa和IIIc)显示出190-426范围内的热致液晶行为(C)1995 John Wiley and Sons,Inc. [参考:20]

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