| 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 |
| |
| 作者姓名： | Khalil Faghihi Azizollah Mirsamie |
| |
| 作者单位： | 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 |
| |
| 基金项目： | 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 microwaveoven from the polycondensation reactions of N.N'-(pyromellitoyl)-bis-L-alanine diacid chloride(1)with eight differentderivatives 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 completedwithin 8-10 min,producing a series of new poly(amide-imide)s(3a-h)with inherent viscosities about 0.35-0.68 dL/g inhigh yields.The obtained PAIs(3a-h)were fully characterized by means of FT-IR spectroscopy,elemental analyses,inherentviscosity(ηinh),solubility and specific rotation measurements.All of the resulting polymers show optical rotation and areoptically active.Thermal properties of the poly(amide-imide)s were investigated by using thermal gravimetric analysis(TGA).
|
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 |
| |
| Khalil Faghihi,Azizollah Mirsamie.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[J].Chinese Journal of Polymer Science,2005,23(1). |
| |
| Authors: | Khalil Faghihi Azizollah Mirsamie |
| |
| Abstract: | 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). |
| |
| Keywords: | Microwave-assisted polycondensation Optically active polymers 5 5-Disubstituted hydantoin derivatives |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
