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Influence of irradiation dose on free volume and microstructure of SB biblock copolymer study by PALS and FT-IR

Zhao Yong-Fu Jiang Xi-Qun Xia Yuan-Fu Jiang Zhong-Ying Yu Wei-Zhong

Influence of irradiation dose on free volume and microstructure of SB biblock copolymer study by PALS and FT-IR

Zhao Yong-Fu, Jiang Xi-Qun, Xia Yuan-Fu, Jiang Zhong-Ying, Yu Wei-Zhong
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Publishing process
  • Received Date:  19 June 2005
  • Accepted Date:  03 August 2005
  • Published Online:  20 July 2006

Influence of irradiation dose on free volume and microstructure of SB biblock copolymer study by PALS and FT-IR

  • 1. (1)江苏农科院原子能所,南京 210014; (2)南京大学化工学院高分子科学与工程系,南京 210093; (3)南京大学物理系,南京 210093; (4)南京大学物理系,南京 210093;伊犁师范学院物理系,伊宁 835000; (5)清华大学物理系,北京 100084

Abstract: Positron annihilation lifetime spectroscopy and Fourier transform Infrared spectrometer were used to study the effect of γ irradiation dose on free volume and microstructure of polystyrene-block-butadiene diblock copolymer, respectively. Based on the free volume classic model of Eldrup and examonation of the correlation between their results, the model of γ irradiation effect on cross-linking and degradation of SB is established. Thermal gravity analysis was used to study thermal stability of SB at various irradiation doses to reveal the relationship between thermal stability and micro-structure changes.

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