Browsing HML Preprints 2005 by Title
Now showing items 6-13 of 13
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Miscibility and Viscoelastic Properties of Acrylic Polyhedral Oligomeric Silsesquioxane-Poly(methyl methacrylate) Blends
(2005-04-19)We investigate the miscibility of acrylic polyhedral oligomeric silsesquioxanes (POSS) [characteristic size d ≈ 2 nm] and poly(methyl methacrylate)(PMMA) in order to determine the effect of well-dispersed POSS nanoparticles ... -
Nonlinear Shear and Extensional Flow Dynamics of Wormlike Surfactant Solutions
(2005-10-04)Nonlinear shear and extensional flow dynamics of rheological properties of a wormlike micellar solution based on erucyl bis (2-hydroxyethyl) methyl ammonium chloride, EHAC, are reported here. The influences of surfactant ... -
Rheology and Dynamics of Associative Polymers in Shear and Extension: Theory and Experiment
(2005-08-22)We investigate the steady and transient shear and extensional rheological properties of a series of model hydrophobically modified ethoxylate-urethane (HEUR) polymers with varying degrees of hydrophobicity. A new nonlinear ... -
Shock Dynamics in Particle-Laden Thin Films
(2005-04-22)We present theory and experiments for thin film particle-laden flow on an incline. At higher particle concentration and inclination angle, a new phenomenon is observed in which a large particle-rich ridge forms at the ... -
Slippage and Migration in Taylor-Couette Flow of a Model for Dilute Wormlike Micellar Solutions
(2005-06-09)In this paper we explore a model, most appropriate for dilute or semi-dilute worm-like micellar solutions, in an axisymmetric circular Taylor-Couette geometry. This study is a natural continuation of earlier work on ... -
Thermorheological Properties Near the Glass Transition of Oligomeric Poly(methyl methacrylate) Blended with Acrylic Polyhedral Oligomeric Silsesquioxane Nanocages
(2005-08-26)Two distinct oligomeric species of similar mass and chemical functionality (Mw ≈ 2,000 g/mol), one a linear methyl methacrylate oligomer (radius of gyration Rg ≈ 1.1 nm) and the other a hybrid organic-inorganic polyhedral ... -
Two-Dimensional Self-Assembly in Diblock Copolymers
(2005-06-20)Diblock copolymers confined to a two-dimensional surface may produce uniform features of macromolecular dimensions (10 − 100 nm). We present a mathematical model for nanoscale pattern formation in such polymers which ... -
Visco-Elasto-Capillary Thinning and Break-Up of Complex Fluids
(2005-06-09)The progressive break-up of an initially stable fluid column or thread into a number of smaller droplets is an important dynamical process that impacts many commercial operations from spraying and atomization of fertilizers ...
