Viscoelastic properties of amorphous polymers 3: low molecular weight poly(methylphenylsiloxane) |
| |
| Authors: | D J Plazek C A Bero S Neumeister G Floudas G Fytas K L Ngai |
| |
| Institution: | (1) Present address: Department of Materials Science and Engineering, University of Pittsburgh, 15261 Pittsburgh, Pennsylvania, USA;(2) Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece;(3) Naval Research Laboratory, Washington, D.C., USA |
| |
| Abstract: | By making creep and recoverable creep measurements of a nearly monodisperse low molecular weight poly(methyl phenyl siloxane) sample, we have found on decreasing temperature towardsT
g that there is continuously a change in the viscoelastic spectrum concomitant with a decrease of the steadystate recoverable compliance. This behavior is exactly the same as previously observed in low molecular weight poly(styrene), proving that this spectacular anomaly in the viscoelasticity of low molecular weight polymers is general and deserves an explanation. Photon correlation spectroscopic measurements performed on the same sample have extended the observation of the viscoelastic response to shorter times and the result corroborates the trend of variation established by the creep data.Dedicated to Prof.Dr. E. W. Fischer on his 65th Birthday. Prof.Dr. Fischer is known for his valuable contribution to fosterine, international collaboration of research in polymer science. This work is an example of his contribution because it would not be possible without him bringing us together. One of us (KLN) would like to take this opportunity to thank Prof. Dr. Fischer for his unwaiving support of the 1st (Crete) and the 2nd (Alicante) International Discussion Meeting on Relaxations in Complex Systems |
| |
| Keywords: | Viscoelasticity creep compliance photon correlation spectroscopy poly(methylphenylsiloxane) |
| 本文献已被 SpringerLink 等数据库收录！ |
|
