Now showing items 21-30 of 63
Mechanical properties of in situ composites based on polycarbonate and a liquid crystalline polymer
(Elsevier, 1994-08)
The mechanical properties of in situ composites based on blends of polycarbonate and a liquid crystalline copoly(ester amide) (Vectra B950) have been studied as functions of the liquid crystalline polymer (LCP) concentration ...
Interpretation of dynamic scattering from polymer solutions
(Elsevier, 1980-08)
The theoretical results available for the interpretation of the dynamic scattering from polymer solutions have been re-examined. The scattering law S(q, t) is formulated using the eigenfunction expansion method and the ...
Toughening mechanisms in core-shell rubber modified polycarbonate
(Elsevier, 1990-12)
We have conducted a study of toughening mechanisms in rubber modified polycarbonate systems in order to evaluate the sequence of deformation events which improve fracture toughness. We conclude that cavitation of the rubber ...
Deformation behaviour of a polycarbonate plate with a circular hole: finite elements model and experimental observations
(Elsevier, 1988-09)
The unique and complex deformation behaviour of ductile polymers has received considerable attention in the polymer field. Much research has been conducted to study the yielding and post-yielding behaviour of polymers. In ...
Rate and temperature effects on the fracture toughness of a rubber-modified epoxy
(Elsevier, 1993-04)
A series of three-point bend fracture toughness tests was performed at various loading rates and temperatures on both rubber-modified and unmodified epoxy specimens. The fracture toughness of the modified samples was ...
Multiple scattering in small-angle neutron scattering measurements on polymers
(Elsevier, 1983-02)
Multiple scattering corrections in small-angle neutron scattering experiments on polymers have been examined. Numerical calculations show that, for typical experimental conditions, the second-order scattering is less than ...
Concentration dependence of diffusion coefficient at various molecular weights and temperatures
(Elsevier, 1981-09)
The effect of temperature on the concentration dependence of the diffusion coefficient D(c) is investigated experimentally by light scattering using polystyrene with Mw = 179 000 and 900 000 in toluene and cyclohexane at ...
Superposition of small shear deformations on large uniaxial extensions for viscoelastic materials
(Elsevier, 1985-07)
The equation for small amplitude torsional response superposed on a finite axial stretch history is derived for a material modelled by the BKZ constitutive equation. For the case of a uniaxial step stretch history, this ...
Three-dimensional solubility parameters and chemical protective clothing permeation. II. Modeling diffusion coefficients, breakthrough times, and steady-state permeation rates of organic solvents in Viton® gloves
(Wiley Subscription Services, Inc., A Wiley Company, 1993-10-15)
Three-dimensional (3-D) solubility parameters are used in separate models of the solubility, S , and diffusion coefficient, D , of organic solvents in polymers. Modeled values of these variables are then combined in ...
Structural and mechanical behavior of layered zirconium phosphonate as a distributed phase in polycaprolactone
(Wiley Subscription Services, Inc., A Wiley Company, 2009-10-15)
Mixed-surface octyl/methoxyundecyl Α-zirconium phosphonates (ZrPs) were investigated as distributed nanoscale fillers, in concentrations up to 50% w/w, for the purpose of increasing the elastic modulus and yield strength ...