Now showing items 31-40 of 64
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 ...
Ultrasonic measurements of the elastic moduli of liquid crystalline polymers
(Elsevier, 1992)
The five independent elastic moduli of extruded rods of two thermotropic liquid crystalline polymers, Vectra B900 and Vectra A950, and the nine independent moduli of an injection-moulded bar of Vectra A950 have been measured ...
The preparation and morphology of PPO–epoxy blends
(Wiley Subscription Services, Inc., A Wiley Company, 1993-05-10)
Poly(phenylene oxide) (PPO) was found to be miscible in diglycidyl ether of bisphenol A (DGEBA) based epoxy. The PPO–DGEBA system exhibited upper critical solution temperature (UCST) behavior. The cloud point temperatures ...
Configurational characteristics of ethylene-vinyl chloride copolymers
(Elsevier, 1973-11)
Rotational isomeric state theory has been used to calculate mean-square unperturbed dimensions r2> and dipole moments 2> of ethylene-vinyl chloride copolymers as a function of chemical composition, chemical sequence ...
Fatigue craze initiation in polycarbonate: study by small-angle X-ray scattering
(Elsevier, 1994-09)
The structural changes that occur during the incubation stage of tensile fatigue failure of glassy polycarbonate are investigated by means of small-angle X-ray scattering. The results are interpreted as the formation of ...
Dimensions of poly(trimethylene oxide) chains in a theta-solvent
(Elsevier, 1976-08)
Fractions of poly(trimethylene oxide) ---CH2)3---]x of relatively high degree of polymerization x were studied in liquid-liquid phase equilibria in the poor solvent cyclohexane. The results thus obtained indicate that the ...
Preparation and characterization of maleimide-terminated poly(arylene ether sulfone) oligomers of various molecular weights
(Wiley Subscription Services, Inc., A Wiley Company, 1991-11-20)
A new variation in the bismaleimide (BMI) resin family, maleimide-terminated poly(oxy-1,4-phenylene sulfonyl-1,4-phenylene) oligomers, has been synthesized. The preparation of oligomers ( n = 1–12) is described in this ...
The effect of fiber orientation on the toughening of short fiber-reinforced polymers
(Wiley Subscription Services, Inc., A Wiley Company, 2003-12-05)
The effect of fiber orientation on the toughening of polymers by short glass fibers generally below their critical length was investigated using specimens with either well-aligned or randomly oriented fibers. The fibers ...
Characterization of the compaction and sintering of hydroxyapatite powders by mercury porosimetry
(Elsevier, 1974-04)
Mercury porosimetry was used to measure the bulk and real densities, pore volumes and pore size distributions of compacts of hydroxyapatite before and after sintering. The hydroxyapatites were prepared by two different ...
A computer program for pore volume and pore area distribution calculations from mercury porosimeter data on particulate or porous materials
(Elsevier, 1972-07)
A computer program in Fortran IV is described for rapidly determining pore size and pore area distribution calculations from the high pressure mercury porosimeter data. The listing of the program is reproduced as well as ...