AbstractThe properties of alpha‐olefin–sulfur dioxide copolymer prepared from the series C8–C18(even‐numbered) alpha‐olefins and sulfur dioxide are described. These polymers undergo clean thermal degradation and have high permeabilities to oxygen and carbon dioxide. Maximum permeabilities, maximum per cent elongation at the yield point, and minimum density are obtained with the C16‐based polymer. An explanation is proposed involving a competitive plasticizing/side chain crystalliza
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