Gamma irradiation effect on microstructure and physical properties of SEBS triblock copolymer

摘要：

In this paper, Fourier transform infrared (FT-IR), thermogravimetric analysis (TGA), dynamic mechanical thermal analysis (DMTA) and positron annihilation lifetime spectroscopy (PALS) have been used to study the effect of gamma irradiation dose on the structure, free volume properties, thermal stability and mechanical feature of poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS) triblock copolymer. Gamma irradiation was carried out at room temperature in air with a 60Co-γ-ray source with the different doses. The FT-IR results showed that the most interesting features had developed in the carbonyl stretching vibration region, in which the formation of a wide variety of oxidation products was observed upon photo-oxidation and main chain length experiences the three process change.

作者: Z.Y.Jiang

作者单位: Department of Physics,Yili Normal Institute,Yining,835000,China;Department of Physics,Nanjing University,Nanjing,210093,China

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 80

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）