A series of enthalpy relaxation experiments at different aging temperatures was conducted on a poly(vinyl methyl ether)/polystyrene blend using a differential scanning calorimeter (DSC). The enthalpic aging data were analyzed in terms of two models for describing physical aging in polymer systems. Comparisons were also made between blend and homopolymer aging data. It has been found that the PVME component in the blend appears to age independently of the PS component and is responsible for essentially all of the aging effects measured. The PS component will, however, retard the physical aging processes of PVME in the blend. © 1989 American Chemical Society.
|Number of pages||6|
|Publication status||Published - 1989|