Abstract
The poly(chlorocarbophosphazene) [N 3 P 2 CCl 5 ] n was prepared by thermal ring-opening polymerization of the cyclic carbophosphazene N 3 P 2 CCl 5 and was reacted with aryloxide nucleophiles to yield hydrolytically stable poly[(aryloxy)carbophosphazenes] [N 3 P 2 C(OAr) 5 ] n . The glass transition temperatures of the poly-[(aryloxy) carbophosphazenes] are 16-42°C higher than those of their classical polyphosphazene analogues [NP(OAr) 2 ] n . Possible reasons for the lower skeletal flexibility of poly(carbophosphazenes) compared to classical polyphosphazenes are discussed
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