RAPID SYNTHESIS OF NOVEL OPTICALLY ACTIVE POLY(AMIDE-IMIDE)S DERIVED FROM N,N'-(PYROMELLITOYL)-BIS-L-ALANINE DIACID CHLORIDE AND HYDANTOIN DERIVATIVES UNDER MICROWAVE IRRADIATION

查看全文 作　　者：Khalil [1]Faghihi;Azizollah [1]Mirsamie

机构地区：[1]Organic Polymer Chemistry Research Laboratory,Department of Chemistry,Faculty of Science,Arak University,Arak,38156,Iran, Chemical Engineering Dept,Faculty of Engineering,Azad Univertsity of Arak,Arak,Iran, Organic Polymer Chemistry Research Laboratory,Department of Chemistry,Faculty of Science,Arak University,Arak,38156,Iran

出　　处：《Chinese Journal of Polymer Science》索引2005年第23卷第1期,共7页

基　　金：This work was supported by the Research Affairs Division of Arak University. 摘　　要：Eight novel poly(amide-imide)s were synthesized under microwave irradiation by using a domestic microwave oven from the polycondensation reactions of N,N'-(pyromellitoyl)-bis-L-alanine diacid chloride (1) with eight different derivatives of hydantoin compounds (2a-h) in the presence of a small amount of a polar organic medium such as o-cresol.The polycondensation proceeded rapidly, compared with the conventional solution polycondensation and was completed within 8-10 min, producing a series of new poly(amide-imide)s (3a-h) with inherent viscosities about 0.35-0.68 dL/g in high yields. The obtained PAIs (3a-h) were fully characterized by means of FT-IR spectroscopy, elemental analyses, inherent viscosity (ηinh), solubility and specific rotation measurements. All of the resulting polymers show optical rotation and are optically active. Thermal properties of the poly(amide-imide)s were investigated by using thermal gravimetric analysis(TGA). 关键词：氯化物乙内酰脲微波放射法光学活性聚合体 5,5-双取代乙内酰脲化学结构分析方法

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RAPID SYNTHESIS OF NOVEL OPTICALLY ACTIVE POLY(AMIDE-IMIDE)S DERIVED FROM N,N'-(PYROMELLITOYL)-BIS-L-ALANINE DIACID CHLORIDE AND HYDANTOIN DERIVATIVES UNDER MICROWAVE IRRADIATION

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