Abstract
AbstractAlternating block copolymers have been synthesized from dihydroxyl‐terminated polysulfone and bis(dimethylamine)‐terminated polydimethylsiloxane oligomers. The products are soluble, amorphous, and transparent, and display excellent thermal and hydrolytic stability. Elastomeric and rigid compositions can be prepared by varying oligomer molecular weight. Copolymers made with oligomers of ≥ 5000 molecular weight are two‐microphase systems which display glass transition temperatures at −120°C and at +160°C, and therefore have a wide useful temperature range.
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