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The hydration behavior, intermediate water content and platelet adhesion level of four different aliphatic carbonyl polymers that have subtle differences in the backbone structure were investigated. The platelet adhesion was strongly related to the surface hydration and intermediate water content for the hydrated polymers. The ether bonds in the main chain has a significant role in hydration and poly(p-dioxanone) exhibits the lowest platelet adhesion level among four polymers. The other three polymers showed similar platelet adhesion levels. However, carbonate bonds contribute to the formation of more intermediate water than ester bonds.
We have demonstrated that the phase-transfer polycondensation of bisphenol A with 4,4'-dichlorodiphenyl sulfone catalyzed by 18-crown-6 provided poly(arylene ether sulfone)s with high molecular weights even in the non-dehydrated N,N-dimethylacetamide. The obtained poly(arylene ether sulfone)s showed similar or higher number average molecular weights (Mn) compared with that prepared by the conventional polycondensation using azeotropic distillation.