Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBuildup of epoxycycloaliphatic amine networks. Kinetics, vitrification, and gelationD. Verchere, H. Sautereau, J. P. Pascault, C. C. Riccardi, S. M. Moschiar, and R. J. J. WilliamsCite this: Macromolecules 1990, 23, 3, 725–731Publication Date (Print):February 1, 1990Publicat…
The present survey has shown that catalytic combustion can be successfully applied to various domestic and industrial fuel-burning devices for improving combustion efficiency and thermal NO x control. The investigation of kinetics of oxidation of nitrogen-containing compounds on solid catalysts has shown that the fuel…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of aromatic poly(ether ketone)s by nickel-catalyzed coupling polymerization of aromatic dichloridesMitsuru Ueda and Fumiaki IchikawaCite this: Macromolecules 1990, 23, 4, 926–930Publication Date (Print):February 1, 1990Publication History Published online1 May 2002…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe roles of phase separation mechanism and coarsening in the formation of poly(methyl methacrylate) asymmetric membranesFu Jya Tsai and John M. TorkelsonCite this: Macromolecules 1990, 23, 3, 775–784Publication Date (Print):February 1, 1990Publication History Published onli…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoordination modes of the squarate ligand: syntheses and crystal structures of six copper(II) squarate complexesXavier Solans, Magdalena Aguilo, Alain Gleizes, Juan Faus, Miguel Julve, and Michel VerdaguerCite this: Inorg. Chem. 1990, 29, 4, 775–784Publication Date (Print):F…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTrac-[Ethylidene(1-.eta.5-tetramethylcyclopentadienyl)(1-.eta.5-indenyl)]dichlorotitanium and its homopolymerization of propylene to crystalline-amorphous block thermoplastic elastomersDaniel T. Mallin, Marvin D. Rausch, Ye Gang Lin, Sizhong Dong, and James C. W. ChienCite th…
Abstract Small Angle Neutron Scattering (SANS) experiments show that a high density of voids of molecular size is formed within the crystalline structure of solidified trilaurin. It is proposed that these voids are defects in the crystal structure and that ordinary metallurgical concepts of defect controlled crystal g…
Abstract The crystallinity of polyethylene, polyethyleneterephthalate, and polypropylene was measured with the aid of wide angle (WAXS) and small angle (SAXS) X‐ray scattering methods. The values of crystallinity evaluated using the latter method are distinctly larger than those ones given by the WAXS method. The diff…
The effects of the detailed structure of porous electrodes on their macroscopic and microscopic current and potential distributions have been quantitatively analyzed. An analytical expression has been derived for the macroscopic pore resistance in terms of a constriction factor which can be related to the pore microst…
The incorporation of actinide elements and their rare‐earth element analogues in titanate nuclear waste forms is reviewed. New partitioning data are presented for three waste forms containing Purex waste simulant in combination with either NpO 2 , PuO 2 , or Am 2 O 3 . The greater proportion of transuranics partition…
A wide study was carried out of the acid–base behaviour of ferricyanide ions in aqueous perchloric acid media in the range 0.1–11.5 M. This study shows that protonation and decomposition of the ferricyanide ions occur simultaneously. The three successive protonation equilibria were found in the acidity ranges 0.1–4.0,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMorphology of highly textured high-density polyethyleneH. H. Song, A. S. Argon, and Robert E. CohenCite this: Macromolecules 1990, 23, 3, 870–876Publication Date (Print):February 1, 1990Publication History Published online1 May 2002Published inissue 1 February 1990https://do…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAxial ligand orientation in iron(II) porphyrinates. Preparation and characterization of low-spin bis(imidazole)(tetraphenylporphyrinato)iron(II) complexesMartin K. Safo, W. Robert Scheidt, and Govind P. GuptaCite this: Inorg. Chem. 1990, 29, 4, 626–633Publication Date (Print…
The time dependence of relaxation for many substances near their glass transition region is often found accurately to obey a ``stretched exponential'' form, exp[-(t/\ensuremath{\tau}${)}^{\ensuremath{\alpha}}$], with the stretching exponent in the range 0<\ensuremath{\alpha}<1. It is the objective of this paper…
Polyundecanamide (nylon 11) was synthesized with 99+% 15N labeling of the amide nitrogen. Polymer samples were thermally treated to give the stable triclinic a crystal form and the metastable 6"' smectic form. The y form was obtained by precipitation from neat trifluoroacetic acid upon evaporation. 15N CP/MAS NMR clea…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of zwitterionic silicone sulfobetaine surfactantsSteven A. Snow, William N. Fenton, and Michael J. OwenCite this: Langmuir 1990, 6, 2, 385–391Publication Date (Print):February 1, 1990Publication History Published online1 May 2002Published iniss…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTwo-electron oxidation of cobalt phthalocyanines by thionyl chloride. Implications for lithium/thionyl chloride batteriesP. A. Bernstein and A. B. P. LeverCite this: Inorg. Chem. 1990, 29, 4, 608–616Publication Date (Print):February 1, 1990Publication History Published onlin…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of annealing on the structure formation in a thermotropic liquid crystalline copolyesterAkira Kaito, M. Kyotani, and K. NakayamaCite this: Macromolecules 1990, 23, 4, 1035–1040Publication Date (Print):February 1, 1990Publication History Published online1 May 2002Publ…
Experiments by Huppert (1982) have demonstrated that a finite volume of fluid placed on an inclined plane will elongate into a thin sheet of fluid as it slides down the plane. If the fluid is initially placed uniformly across the plane, the sheet retains its two-dimensionality for some time, but when it has become suf…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrossover behavior in high-frequency dielectric relaxation of linear polyions in dilute and semidilute solutionsKohzo Ito, Akira Yagi, Norio Ookubo, and Reinosuke HayakawaCite this: Macromolecules 1990, 23, 3, 857–862Publication Date (Print):February 1, 1990Publication Histo…