Now showing items 41-50 of 81
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 ...
Effect of different immobilization strategies on chiral recognition properties of Cinchonaâ based anion exchangers
(Wiley Periodicals, Inc., 2018-03)
In the enantiomeric separation of highly polar compounds, a traditionally challenging task for highâ performance liquid chromatography, ionâ exchange chiral stationary phases have found the main field of application. In ...
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 ...
Effects of surface modification, carbon nanofiber concentration, and dispersion time on the mechanical properties of carbon-nanofiber–polycarbonate composites
(Wiley Subscription Services, Inc., A Wiley Company, 2007-03-15)
The time effect of ultrasonication was investigated for dispersing carbon nanofibers (CNFs) into a polycarbonate (PC) matrix on the mechanical properties of thus-produced composites. The effects of CNF surface modification ...
Zone fractionation of cyclohexane-rich polystyrene–cyclohexane solid solutions This investigation was supported by a National Science Foundation Grant. Presented before the International Symposium on Macromolecular Chemistry; I.U.P.A.C., Montreal, Canada, July 1961.
(Wiley Subscription Services, Inc., A Wiley Company, 1964-03)
Experimental results on the application of zone melting techniques to dilute solutions of polystyrene in cyclohexane under various operating conditions are reported together with observations on static solidification tests ...