Article ID Journal Published Year Pages File Type
1485150 Journal of Non-Crystalline Solids 2007 5 Pages PDF
Abstract
Dielectric spectroscopy was carried out on polycyclohexylmethacrylate (PCHMA) and its blend with poly-α-methylstyrene (PaMS) as a function of temperature and pressure. When measured at conditions whereby the local segmental relaxation time for the PCHMA was constant, the dispersion in the loss spectra had a fixed shape; that is, the relaxation time determines the breadth of the relaxation time distribution, independently of T and P. This result is known for neat materials and could be observed for the blend herein due to the nonpolar character of the PaMS and the degree of thermodynamic miscibility of the blend.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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