Rates for intramolecular excimer formation of poly(α-methylstyrene) measured by using picosecond pulse radiolysis |
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| Authors: | Hideyuki Itagaki Masakazu Washio Seiichi Tagawa |
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| Affiliation: | (1) Department of Chemistry, Faculty of Education, Shizuoka University, 836 Ohya, 422 Shizuoka, Japan;(2) Sumitomo Heavy Industries, 63-30 Yuhigaoka, 254 Hiratsuka, Japan;(3) Research Center for Nuclear Science and Technology, University of Tokyo, Tokai-mura, 319-11 Ibaraki, Japan |
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| Abstract: | Summary The rate constants for intramolecular excimer formation, kDM, of poly(α-methylstyrene) with different molecular weight were determined by using picosecond pulse radiolysis. Values of
kDM for poly(α-methylstyrene) are a little smaller than those for polystyrene with nearly same molecular weight. It appears to
be mainly due to steric hindrance by methyl substituent of main chain. |
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