Abstract

Through MNDO geometry optimizations and VEH band-structure calculations on both cis- and trans-polybutadiene and polyisoprene, it is shown that the polymers with skewed conformations possess an HOVB width on the order of 0.79-0.93 eV. The solid state ionization potentials are found to be too large to allow for oxidation by iodine and formation of ethylenic radical cations

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