The effect of micro--phase separation and location of sulfoalkyl pendantgroups on the properties of biomedical segmented polyetherurethanes (SPEU) were studied.Two series of SPEUs containing sulfooctyl pendant groups ...The effect of micro--phase separation and location of sulfoalkyl pendantgroups on the properties of biomedical segmented polyetherurethanes (SPEU) were studied.Two series of SPEUs containing sulfooctyl pendant groups exactly located at the hard segments or sort segments with well defined fine structures were synthesized. The fine structuresof all samples were verified by FTIR,TEM and dynamic mechanical analysis. The anticoagulant properties or such ion - containing SPEUs were improved,and its relationships to thefine structures were discussed.展开更多
The microphase separation extent of biomedical segmented polyetherurethanes were greatly enhanced due to the presence of sulfoalkyl pendant groups contained in the hard segments,and the hard segments were more orderly...The microphase separation extent of biomedical segmented polyetherurethanes were greatly enhanced due to the presence of sulfoalkyl pendant groups contained in the hard segments,and the hard segments were more orderly aggregated through ionic interaction.展开更多
文摘The effect of micro--phase separation and location of sulfoalkyl pendantgroups on the properties of biomedical segmented polyetherurethanes (SPEU) were studied.Two series of SPEUs containing sulfooctyl pendant groups exactly located at the hard segments or sort segments with well defined fine structures were synthesized. The fine structuresof all samples were verified by FTIR,TEM and dynamic mechanical analysis. The anticoagulant properties or such ion - containing SPEUs were improved,and its relationships to thefine structures were discussed.
文摘The microphase separation extent of biomedical segmented polyetherurethanes were greatly enhanced due to the presence of sulfoalkyl pendant groups contained in the hard segments,and the hard segments were more orderly aggregated through ionic interaction.
