聚苯基膦酸双酚A酯的合成与表征

聚苯基膦酸双酚Ａ酯的合成与表征唐旭东陈晓婷王玉忠杨科珂王波（四川联合大学化学系成都６１００６４）吴大诚（四川联合大学轻纺学院成都６１００６５）关键词聚膦酸酯，阻燃剂，熔融缩聚，热性能聚膦酸酯类化合物是一类重要的磷系阻燃剂［１～３］，与传统的非聚...

SYNTHESIS AND CHARACTERIZATION OF POLY(BISPHENOL A-PHENYLPHOSPHONATE)

Poly(bisphenol A phenylphosphonate)(PBPPP) was synthesized by melt polycondensation using phenylphosphonic dichloride(PPD) and bisphenol A(BPA). The relationships between inherent viscosities of PBPPP and reaction conditions such as temperature, time, ratios of monomers and the ways of addition were shown in the paper. The inherent viscosities of PBPPP increased with the increase of ratios of BPA/PPD, the reaction temperature and time, but they behaviored opposite varrations when the ratio of BPA/PPD, the reation temperature and the reaction time were beyond 1∶0 990, 280℃ and 4 5h, respectively. PBPPP products with an inherent viscosity of 0.37 g/dL were obtained in the optimum conditions in which the ratio of monomers was 1:0.99(—OH/—Cl), the reaction temperature from 160 ℃ to 280 ℃ and the time 4.5 h. The structures of PBPPP were characterized by FT IR, 1H NMR, 31P NMR and elemental analysis. The thermal behavior was evaluated by DSC and TG. The thermal analysis indicated that the Tg of PBPPP was at 107 ℃ and PBPPP's starting loss weight at about 310 ℃. The LOI of PET containing 10wt% PBPPP was 28.0, which show that PBPPP can be used as flame retardants.