Glass Transition Behaviors of a Polyurethane Hard Segment based on 4,4˘-Diisocyanatodiphenylmethane and 1,4-Butanediol and the Calculation of Microdomain Composition 

 -  Macromolecules, 30(17), p.5068-5074, 1997 .
<br/><br/> The long-term confusing glass transition temperature, Tg, and specific heat capacity, ˘Cp, of the 4,4˘-diisocyanatodiphenylmethane (MDI)and 1,4-butanediol (BD)hard segment in segment polyurethanes have been clearly evidenced by using a new series of completely phase-mixed polyurethanes while being extrapolated to 100