Zobrazeno 1 - 10
of 35
pro vyhledávání: '"D. J. Plazek"'
Publikováno v:
Macromolecules. 41:3925-3929
On the basis of a comparison of the dielectric normal mode relaxation times τ n of unentangled cis-1,4-polyisoprene, poly(propylene glycol), and polyoxybutylene with literature data for the shear viscosity n of polystyrene, atactic polypropylene, an
Publikováno v:
Macromolecules. 37:10018-10022
Interrupted shear measurements were used to follow the reentanglement kinetics and associated molecular weight dependence for solutions of near-monodisperse polybutadiene (PB). The time-dependent recovery of the overshoot in the shear stress was meas
Publikováno v:
Macromolecules. 37:7051-7055
The variations with temperature of the viscosity, η, and the relaxation times for various low molecular weight, unentangled polystyrenes (PS) are analyzed. We find that the temperature dependence of η does not directly reflect the behavior of the g
Publikováno v:
Journal of Rheology. 46:495-506
The viscoelastic behavior of a rosin derivative, dehydroabietic acid, DHAA, has been determined with shear creep and recovery measurements at temperatures between 43 and 88 °C. The viscosity measurements extended up to 162 °C. The glass temperature
Publikováno v:
The Journal of Chemical Physics. 112:1887-1892
Within the last five years, investigators using NMR and forced Raleigh scattering techniques have found that the Stokes–Einstein (S–E) relation breaks down in supercooled liquids. It has been pointed out that the shear viscosity has a significant
Publikováno v:
The Journal of Chemical Physics. 111:9337-9342
Creep experiments were carried out on amorphous selenium (Se) at temperatures in the vicinity of the glass temperature. The recoverable compliance lacks a plateau, indicating Se chains are too short to form an entanglement network. The measured compl
In this chapter, the linear viscoelastic properties of rubber and its dependence on various parameters are described, including crosslink density, chemical structure, and molecular weight, with experimental data principally coming from measurements o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::197c2d2e772bf288b0c587b979bb5ada
https://doi.org/10.1016/b978-0-12-394584-6.00005-4
https://doi.org/10.1016/b978-0-12-394584-6.00005-4
Publikováno v:
Macromolecules. 28:6539-6550
Gel formation of moderately concentrated solutions of anionically polymerized polystyrene in carbon disulfide is studied to conclude that association of the two sulfur atoms on CS 2 with phenyl rings on different polystyrene chains results in a few c
Publikováno v:
Macromolecules. 28:6432-6436
The viscoelastic behavior of a high molecular weight polyisobutylene has been revisited to investigate the unique high-frequency peak (or shoulder) seen in the loss tangent behavior in the glass to rubber softening dispersion. Creep measurements made
Publikováno v:
Journal of Electronic Packaging. 117:249-254
Electrical component assemblies are encapsulated to provide delicate parts with voltage isolation and protection against damage. The stresses generated by cure shrinkage, although typically smaller than the thermal residual stresses produced by cooli