Zobrazeno 1 - 10
of 73
pro vyhledávání: '"R. G. Larson"'
Autor:
R. G. Larson
Publikováno v:
Journal of Rheology. 59:595-611
To distinguish it clearly from nonlinear viscoelasticity, we define “ideal thixotropy” as “a time-dependent viscous response to the history of the strain rate, with fading memory of that history,” endowing such fluids with memory but no elast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e5e53a43e44f5fe2af69e8dc58f84d
https://doi.org/10.1122/1.4913584
https://doi.org/10.1122/1.4913584
Publikováno v:
Journal of Applied Physics. 81:5913-5923
A quantitative model is presented to describe the formation of volume holograms in a polymeric medium containing photopolymerizable acrylate monomers that undergo spatially modulated gelation as a result of exposure to a visible “write” beam. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db644febd00be77d5f0453dce23e6df2
https://doi.org/10.1063/1.364378
https://doi.org/10.1063/1.364378
Autor:
R. G. Larson
Publikováno v:
Journal de Physique II. 6:1441-1463
Phase diagrams are determined by Monte Carlo lattice simulations for idealized symmetric and asymmetric surfactant molecules mixed with single-site “oil” and “water” molecules. At high concentrations (above 20%) of surfactant, the simulations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::583b6520a7799d48fe490f4718ca800e
https://doi.org/10.1051/jp2:1996141
https://doi.org/10.1051/jp2:1996141
Publikováno v:
Rheologica Acta. 35:252-264
We show for the first time that a classical Hookean viscoelastic constitutive law for rubbery materials can predict the impact forces and deflections measured with a commercial drop tester when a mass, or “tup” with a flat impacting surface is dr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b887f73896d5194a2736934e753d86b
https://doi.org/10.1007/bf00366912
https://doi.org/10.1007/bf00366912
Publikováno v:
Macromolecules. 28:7653-7659
The linear viscoelastic behavior of diblock and triblock copolymers of styrene and isoprene was studied in the lamellar phase both before and after alignment by large-amplitude oscillatory shear. The orientation of the lamellae, as determined by X-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f73584bae4c8fc1de3a50e0df48564c
https://doi.org/10.1021/ma00127a010
https://doi.org/10.1021/ma00127a010
Publikováno v:
Macromolecules. 28:4313-4318
A low molecular weight, slightly entangled polystyrene-polyisoprene (PS-PI) diblock copolymer is quenched from the disordered to a locally ordered but macroscopically disordered lamellar state and then subjected to large-amplitude oscillatory shearin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69519566cfade6d44c80a1d4b5c4bbc9
https://doi.org/10.1021/ma00116a038
https://doi.org/10.1021/ma00116a038
Publikováno v:
Journal of Rheology. 39:519-525
Apparent slip within a few micrometers of a glass surface is visualized with a microscope using small glass spheres as tracers suspended in a highly entangled 20% solution of polystyrene of molecular weight 8.42 million, confined between glass plates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150df14884362a09af3990d814af7ebc
https://doi.org/10.1122/1.550710
https://doi.org/10.1122/1.550710
Autor:
R. G. Larson
Publikováno v:
Molecular Simulation. 13:321-345
Simulations of the lamellar phase transitions of symmetric amphiphilic chains are carried out on a cubic lattice, with the amphiphilic chain length N varied from 6 to 48 lattice sites, corresponding to lengths ranging from surfactants to short block
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32059e031d84f7469e3275ae27f86adf
https://doi.org/10.1080/08927029408021996
https://doi.org/10.1080/08927029408021996
Publikováno v:
Journal of Rheology. 37:1201-1224
In this paper and its sequel, we attempt to understand the rheological differences between lyotropic and thermotropic liquid‐crystalline polymers by contrasting the rheology of three different liquid‐crystalline polymers at concentrations ranging
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49a0bc8d23f5007a5627e8fc8bf8207c
https://doi.org/10.1122/1.550377
https://doi.org/10.1122/1.550377
Autor:
R. G. Larson
Publikováno v:
Journal of Rheology. 37:175-197
Manneville and Dubois‐Violette’s linear stability analysis of the roll‐cell instability in nematics is extended to account for the effect of finite rates of roll‐cell growth. The extended theory is applied to shearing flows of tumbling liquid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::372a43a718bbd0d3efd50c9e392844d3
https://doi.org/10.1122/1.550440
https://doi.org/10.1122/1.550440