Photon correlation spectroscopy to study the dynamics of α- and β-relaxation in amorphous poly(Alkylmethacrylates) above Tg

6533b859fe1ef96bd12b7599

RESEARCH PRODUCT

Photon correlation spectroscopy to study the dynamics of α- and β-relaxation in amorphous poly(Alkylmethacrylates) above Tg

subject

chemistry.chemical_classification Materials science Photon chemistry Dynamic light scattering Correlation function Relaxation (NMR)Isotropy Analytical chemistry Polymer Light scattering Amorphous solid

description

A short survey of the underlying principles of isotropic light scattering from amorphous bulk polymers is given. The interrelation between the time dependent longitudinal compliance and the autocorrelation function of density fluctuations is briefly reviewed and a comparison with poly(vinylacetate) PVAc is presented. For four poly-(alkylmethacrylates) - poly(methylmethacrylate) PMMA, poly(ethylmethacrylate) PEMA, poly(n-butylmethacrylate) PBMA and poly(n-hexylmethacrylate) PHMA - the results of photon spectroscopic studies are given and discussed in terms of the occurrence of primary and secondary relaxation processes within the accessible time range of the experiment.

year	journal	country	edition	language
2008-04-07

https://doi.org/10.1007/3-540-17801-5_14

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