Citation: Bin Jing, Jia-xi Wang, Xiao-yan Li, Hui-ying Shi, Xiao-wei Hou, Xing-quan Xiong, Lin Cheng. SYNTHESIS AND CHARACTERIZATION OF POLY(PHTHALAZINONE ETHER PHOSPHINE OXIDE)S BY N―C COUPLING REACTION[J]. Chinese Journal of Polymer Science, ;2010, 28(2): 287-290. doi: 10.1007/s10118-010-9151-5 shu

SYNTHESIS AND CHARACTERIZATION OF POLY(PHTHALAZINONE ETHER PHOSPHINE OXIDE)S BY N―C COUPLING REACTION

Received Date: 16 October 2009
Revised Date: 29 October 2009

Based on several unsymmetrical, twist, noncoplanar phthalazinone-containing monomers 2a-2e and an active bis(4-fluorophenyl)phenyl phosphine oxide (BFPPO) monomer, a series of novel poly(phthalazinone ether phosphine oxide)s (PPEPO) was synthesized by anhydrous K2CO3 mediated N―C coupling reaction in DMAc. The polymers exhibited good thermal properties with Tgs ranging from 267°C to 306°C and 5% weight loss temperatures in nitrogen higher than 430°C, together with high char yield upon prolonged heating at 800°C (35%-56%). Moreover, the polymers were readily soluble in common organic solvents, such as N-methyl-2-pyrrolidone, chloroform and m-cresol. These polymers had inherent viscosities in the range of 0.45-0.72 dL/g and could be cast into flexible and colorless films by spin coating or casting approach.
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