Polymer Motion in Dense Systems: Proceedings of the Workshop, Grenoble, France, September 23-25, 1987
Dieter Richter, Tasso Springer
Springer-Verlag GmbH, 1988 - Science - 307 pages
The nine review articles and roughly 30 contributed papers contained in this volume survey the present understanding of the molecular motion of polymers in concentrated solutions, melts and the amorphous state. Although the main emphasis is on results from neutron scattering experiments, about half of the contributions relate to complementary techniques such as light scattering and NMR. The book highlights three areas of active reseach that have received increasing attention in recent years. First, work on polymer relaxation near the glass transition and in glassy systems has shown that the application of different experimental techniques is indispensable due to the broad range of time scales over which these phenomena occur on a molecular level. Second, it is reported that the internal Brownian motion of long chain molecules and their diffusion in an entangled environment still does not have a generally accepted physical picture, although detailed insights into the microscopic motion have been obtained. Third, important progress has been made in unravelling the characteristics of phase separation of polymer blends, in which modifications to the ordinary laws of diffusion are of particular interest.
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anisotropy autocorrelation function behaviour bond calculated Chem components concentration fluctuations conformational constraints copolymer correlation function corresponding crosslinking curve decay deformation density described deuterated diffusion coefficient dynamic light scattering dynamics effect elastic energy entanglement equation experimental Figure fluorescence anisotropy fraction frequency glass transition incoherent incoherent scattering interaction isotropic J.Chem.Phys labelled chains lattice length light scattering linear lineshape Macromolecules Mainz matrix measurements mixture modes molecular weight molecules monomer motion neutron scattering observed obtained orientation P.G. de Gennes parameter PDMS Phys plot polybutadiene polymer blends polymer chain polymer melts polymeric polystyrene predicted protonated quasielastic quench radius of gyration random range rods rotational Rouse model rubber sample scale scattered intensity scattering experiments scattering function segments shows simulations solid solution spectra spectrum spin spinodal spinodal decomposition structure factor techniques temperature dependence theoretical theory tion tube values vector viscoelastic volume wave vector