PENG Chaorong, CHEN Hao, WANG Xiuying, et al. Synthesis and characterization of ultra-high molecular weight polystyrene by irradiation[J]. Journal of Radiation Research and Radiation Processing, 2007,25(6):355-358.
PENG Chaorong, CHEN Hao, WANG Xiuying, et al. Synthesis and characterization of ultra-high molecular weight polystyrene by irradiation[J]. Journal of Radiation Research and Radiation Processing, 2007,25(6):355-358.DOI:
Ultra-high molecular weight polystyrene (UHMPS) was prepared by emulsion polymerization initiated with gamma ray. The effects of reaction conditions on conversion and molecular weight of polystyrene was investigated. UHMPS was characterized by means of gel permeation chromatography (GPC), Fourier transform infrared spectrometer (FT-IR), nuclear magnetic resonance (,1,HNMR) and differential scanning calorimeter (DSC). The results show that the weight-average molecular weight (,M,w,) of polystyrene (PS) which was synthesized at the dose rate of 0.6Gy/min is up to1.63×10,6, molecular weight distribution is 2.88 and ,T,g, is 78℃.