Open AccessInfluence of irradiation dose on free volume and microstructure of SB biblock copolymer study by PALS and FT-IR
Author(s) -
Jiang Zhong-Ying,
Yu Wang,
Yonggang Zhao,
Jiang Xi-Qun,
Xia Yuan-Fu
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.3743
Subject(s) - irradiation , microstructure , materials science , copolymer , fourier transform infrared spectroscopy , thermal stability , volume (thermodynamics) , polystyrene , volume fraction , infrared , positron annihilation , analytical chemistry (journal) , composite material , chemical engineering , positron , optics , polymer , thermodynamics , chemistry , nuclear physics , chromatography , physics , engineering , electron
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.