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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and characterization of novel heat resistance poly(amide-imide)s from N,N′-[2,5-bis(4-aminobenzylidene) cyclopentanone] bistrimellitimide acid and various aromatic diamines
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Synthesis and characterization of novel heat resistance poly(amide-imide)s from N,N′-[2,5-bis(4-aminobenzylidene) cyclopentanone] bistrimellitimide acid and various aromatic diamines

机译：由N，N'-[2,5-双（4-氨基亚苄基）环戊酮]双嘧苯二酰亚胺酸和各种芳族二胺合成的新型耐热聚（酰胺-酰亚胺）

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摘要

A new-type of dicarboxylic acid was synthesized from the reaction of 2,5-bis(4-aminobenzylidene)cyclopentanone with trimellitic anhydride in a solution of glacial acetic acid/pyridine (Py) at refluxing temperature. Six novel heat resistance poly(amide-imide)s (PAIs) with good inherent viscosities were synthesized, from the direct polycondensation reaction of N,N′-[2,5-bis(4-aminobenzylidene)cyclopentanone]bistrimellitimide acid with several aromatic diamines, by two different methods such as direct polycondensation in a medium consisting of N-methyl-2-pyrrolidone (NMP)/triphenyl phosphite (TPP)/calcium chloride (CaCl_2)/pyridine (Py) and direct polycondensation in a p-toluene sulfonyl chloride (tosyl chloride, TsCl)/pyridine (Py)/N,N-dimethylformamide (DMF) system. All of the above polymers were fully characterized by ~1H NMR, FTIR, elemental analysis, inherent viscosity, solubility tests, UV-vis spectroscopy, differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), and derivative of thermaogravimetric (DTG). The resulted poly(amide-imide)s (PAIs) have showed admirable good inherent viscosities, thermal stability, and solubility.
机译：由2,5-双（4-氨基亚苄基）环戊酮与偏苯三酸酐在冰醋酸/吡啶（Py）溶液中于回流温度下反应，合成了一种新型的二羧酸。通过N，N'-[2,5-双（4-氨基亚苄基）环戊酮]双马来酰亚胺酸与几种芳族化合物的直接缩聚反应，合成了六种具有良好固有粘度的新型耐热聚（酰胺-酰亚胺）（PAIs）。二胺，通过两种不同的方法，例如在由N-甲基-2-吡咯烷酮（NMP）/亚磷酸三苯酯（TPP）/氯化钙（CaCl_2）/吡啶（Py）组成的介质中直接缩聚，以及在对甲苯中的直接缩聚磺酰氯（甲苯磺酰氯，TsCl）/吡啶（Py）/ N，N-二甲基甲酰胺（DMF）系统。以上所有聚合物均通过〜1 H NMR，FTIR，元素分析，特性粘度，溶解度测试，紫外可见光谱，差示扫描量热仪（DSC），热重分析（TGA）和热重分析（DTG）进行了全面表征。所得的聚（酰胺-酰亚胺）（PAI）已显示出令人赞叹的良好的固有粘度，热稳定性和溶解性。

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