Facile synthesis of high‐performance poly(pyrrolone imide)s from an unsymmetric phosphinated triamine |
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| Authors: | Ching Hsuan Lin Chen Ming Li Chin Kuang Hsu Hou Chien Chang Tzong Yuan Juang |
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| Institution: | 1. Department of Chemical Engineering, National Chung Hsing University, , Taichung, Taiwan;2. Department of Applied Chemistry, National Chiayi University, , Chiayi, Taiwan |
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| Abstract: | High‐performance and flexible poly(pyrrolone imide)s (PPyIs) were firstly prepared by the reaction of dianhydrides with an unsymmetric phosphinated triamine, 1‐(3,4‐diaminophenyl)‐1‐(4‐aminophenyl)‐1‐(6‐oxido‐6H ‐dibenz <c,e> <1,2> oxaphosphorin‐6‐yl)ethane (1), which was prepared by a facile, one‐pot procedure from the reaction DOPO, 4‐aminoacetophenone in excess o‐phenylenediamine in the presence of p‐toluenesulfonic acid. Thermal properties of the resulting PPyIs were evaluated and compared with those of phosphinated polyimides with a similar structure. All of the prepared PPyIs films are tough and creasable. They display higher Tg (374–412 °C), lower coefficient of thermal expansion (34–46 ppm/°C), and better thermal stability (Td 5 wt %: 456–477 °C, 800 °C char yield: 59–63%) than analogous phosphinated polyimides. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2709–2715 |
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| Keywords: | functionalization of polymers polyimides thermal properties toughness |
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