Abstract
AbstractMolecular motions in different blends of polystyrene with poly(methyl vinyl ether) were investigated by fluorescence polarization measurements on small amounts of dimethylanthracene‐labeled polystyrene chains added to the system. The temperature dependence of the mobility parameter of the label was studied within the DSC glass transition and phase coexistence temperature range. Experimental data fit an expression of the WLF type, in which C1 and C2 values are roughly independent of blend composition and differ to a small extent from the ‘universal’ coefficients. Moreover, mobility determinations suggest the existence of composition micro‐heterogeneities in the blends below their phase coexistence temperature Tc when subjected to long annealing around Tc – 25°C or above.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.