Preparation, Characterization and Comparison of Thermal Properties of Aromatic Polyether Imides

Two aromatic polyimides were prepared by two-step way. Firstly, the poly (amic acid) s were synthesized from 1,3-bis (4-aminophenoxy) benzene and two aromatic dianhydrides. Secondly, polyimides were prepared via thermal imidization of poly (amic acid) precursors. The polyimides prepared were insoluble in common organic solvents such as tetrahydrofuran, chloroform and N, N-dimethylformamide. The inherent viscosities of poly (amic acid) s were 1.82dL/g and 2.67dL/g. Experimental results indicated that the resulting polyimides showed exceptional thermal properties with excellent thermal stability and higher glass-transition temperature in nitrogen.
polyimide polyetherimide thermal properties DMA DTA glass transition
QIN Weimin CHEN Chaofeng
College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,
国际会议
上海
英文
148-150
2007-10-15(万方平台首次上网日期,不代表论文的发表时间)