Titlebook: Relaxation in Polymers; M. Pietralla,W. Pechhold Conference proceedings 1989 Springer-Verlag Berlin Heidelberg 1989 polymer

抗生素

Interrelation of phase and relaxation behavior in polymer blends and block copolymers with crystalltudied, and their interaction and coupling was found manifested in formation of various non-equilibrium morphologies and abnormal increase of crystallization rate at the separation boundary. The morphology is determined by the ratio of demixing and crystallization rates.

抛弃的货物

Field-induced structure conversions in PVDF,ferent conformations and crystalline structure are investigated in dependence on the poling conditions. By means of modified wide angle x-ray methods it is possible to separate individual effects from each other.

SUGAR

Broadband dielectric spectroscopy on the molecular dynamics in polymer model-systems: polyphenylmet the ratelimiting quantity and hence determine the molecular dynamics. In the case of poly(cis-1,4-isoprene) the molecular dynamics of the linear and the starbranched polymer are compared. Two relaxation processes, a segmental and a normal mode, are observed. Its dependence on temperature, molecular weight, and the chemical structure is discussed.

变量

欢腾

Contour-length fluctuation of polymers: NMR experiments and statistical physics,ce of longitudinal displacements and contour-length fluctuation as fundamental mechanisms. On this basis a segment orientation correlation function has been established which describes and explains a broad variety of dependences and phenomena. This concept involves a new interpretation of the Doi-Ed

CANDY

Irksome

orient

Dispersive and non-dispersive transport processes in polymers,harge carrier motion in a random solid is discussed. While under realistic conditions positional disorder will not give rise to dispersive behavior on the time-scale of a carrier transit, both E-hopping and multiple trapping do so because of energetic relaxation of the carriers within the density of

曲解

Hypersonic properties of a smectic side chain polymer liquid crystal with a PA main chain,nsitions at hypersonic frequencies. In contrast to classical liquid crystals the polymer materials show at both transitions a significant coupling between the static order parameter and the square of the elastic strain ɛ.. The inverse shear stiffness constants do not diverge. All elastic constants b