Now showing items 1-10 of 26
Curing reaction and product properties of polysulfones terminated with active functional groups
(Wiley Subscription Services, Inc., A Wiley Company, 1991-11-20)
The curing processes of maleimide-terminated polyether sulfone oligomers ( M n from 1100 to 3000) and ethynyl-terminated polysulfone prepolymers ( M n from 2600 to 12000) were investigated by means of DSC. The ...
Crosslinking chemistry for high-performance polymer networks
(Elsevier, 1994-11)
A new thermally reactive monomer has been designed and synthesized that brings novel crosslinking chemistry to high-performance polymers. This monomer (XTA) is a derivative of terephthalic acid and was based on the thermal ...
Determination of the electro-optical coefficient r33 and refractive index of para-substituted poly([gamma]-benzyl--glutamate) derivatives
(Elsevier, 1994-01)
The electro-optical coefficient r33 and refractive index of films of poly([gamma]-benzyl--glutamate) and the p-nitro, p-fluoro and p-trifluoromethyl derivatives were determined as a way to assess the non-linear optical ...
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene
(Elsevier, 1992)
Interfacial adhesion and toughening mechanisms in an alloy of polycarbonate/polyethylene (PC/PE) are investigated using transmission electron microscopy. In contrast to the general speculation, it is found that the PE ...
Critical analysis of the graphical determination of hansen's solubility parameters for lightly crosslinked polymers
(Wiley Subscription Services, Inc., A Wiley Company, 1996-12-19)
The most widely accepted method for determining Hansen's three-dimensional solubility parameters (3DSP) for crosslinked polymers entails graphically estimating the center of a spherical region in 3DSP-coordinate space whose ...
Methane to methanol in supercritical water
(Elsevier, 1994-06)
We examined the feasibility of producing methanol from the partial oxidation of methane in near-critical and supercritical water. Oxygen was always the limiting reactant. The parameter space investigated experimentally ...
Research on dust explosions at the University of Michigan
(Elsevier, 1992-08)
Dust explosion research carried out at the University of Michigan during the last two decades has been summarized. Significant results are presented on the smoldering combustion of dust heaps, turbulent combustion of ...
Phase transformations of a liquid crystalline epoxy during curing
(Elsevier, 1994-06)
The phase transformations of a novel liquid crystalline epoxy, diglycidyl ether of 4,4'-dihydroxy-[alpha]-methylstilbene (DGEDHMS), from isotropic phase to liquid crystalline phase during curing have been studied using a ...
Interpretation of dynamic scattering experiments on ternary polymer mixtures
(Elsevier, 1992)
The dynamics of a ternary polymer mixture consisting of either homopolymers A and B, or diblock copolymers A-B, in a matrix of homopolymers C, is studied using the random phase approximation and assuming incompressibility. ...
Positronium formation in semicrystalline poly(ethylene terephthalate)
(Elsevier, 1994-01)
The probability of positronium (Ps) formation in semicrystalline poly(ethylene terephthalate) (PET), has been investigated by means of positron annihilation lifetime spectroscopy (p.a.l.s.). The p.a.l.s. data are correlated ...