Abstract
Melting points and glass transition temperatures have been measured for a series of arylene ether sulphone homo- and co-polymers. Reasons why structurally symmetrical poly(ether sulphones) do not crystallize from the melt are considered, and observed variations in T g with changes in structure discussed. Measurements of toughness, rigidity and density made (before and after storing the test samples at 150°C) on polymers containing isomeric diphenylene ether sulphone repeat units indicate that in this series changes in repeat unit structure cause marked changes in mechanical properties by altering the packing density of polymer repeat units rather than by changing chain polarity or rigidity.
Published Version
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