1448431-97-7Relevant academic research and scientific papers
Facile synthesis of high-performance poly(pyrrolone imide)s from an unsymmetric phosphinated triamine
Lin, Ching Hsuan,Li, Chen Ming,Hsu, Chin Kuang,Chang, Hou Chien,Juang, Tzong Yuan
, p. 2709 - 2715 (2013)
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 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.
