Materials Literature
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Abstract Acrylic monomers with a cyclic carbonate function, their synthesis having been described previously, are used to synthesize copolymers with pendent cyclic carbonate side groups. Their chemical modification by ring opening addition reactions provides a convenient method for preparing functional polymers. The s…
(1990). STRUCTURE/PROPERTY RELATIONSHIPS IN TEXTILE FIBRES. Textile Progress: Vol. 20, No. 4, pp. 1-43.
Feather meal contains three sulfur amino acids: cystine, lanthionine, and methionine. Procedures were investigated to determine the best conditions for quantitating the sulfur amino acids in feather meal. To separate the sulfur amino acids by ion exchange chromatography, an elution system using 100 mM citrate buffer a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBase binding to zinc picket fence porphyrins. Attractive intramolecular interactions in organic solventsHiroyasu Imai and Eishin KyunoCite this: Inorg. Chem. 1990, 29, 13, 2416–2422Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExtraction of polymer properties from oligomer calculationsC. X. Cui, Miklos. Kertesz, and Y. JiangCite this: J. Phys. Chem. 1990, 94, 12, 5172–5179Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June 1990https://pubs.ac…
The tris (methylammonium) nonaiododiantimonate (III) crystals were grown. The preliminary X-ray diffraction studies showed that at room temperature they are isomorphous with Cs3Sb2I9. The crystals are hexagonal, space group P63/mmc with the unit cell parameters; a = 8.543 (1), c = 21.520 (7) å, Z = 2, V = 1360 Å3. The…
ABSTRACT Pterosperma cristatum Schiller, a member of the Pra‐sinophyceae, was examined with light and electron microscopy with special attention on the absolute configuration of flagellar apparatus components and associated structures. This alga is characterized by asymmetrically arranged basal bodies, connecting fibe…
Abstract A new type of multicomponent thermoplastic elastomers is prepared by attaching 4‐(3,5‐dioxo‐1,2,4‐triazolin‐4‐yl)benzoic acid to polybutadiene chains. The groups are difunctional with respect to a potential chain‐molecule formation via reversible association. Thus, a covalent polymer is combined with an assoc…
Gadolinium-DTPA (Gd-DTPA) liposomes have been studied previously as liver contrast agents and have been shown to improve the detection of hepatic metastases in rats. We synthesized 100-nm and 50-nm liposomes that encapsulated Gd-DTPA and did biodistribution and clearance studies in rats. Parallel magnetic resonance im…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and spectroscopic properties of five-coordinate (2-methylimidazolato)- and six-coordinate (imidazole)(imidazolato)iron(II) "picket-fence" porphyrinsD. Mandon, F. Ott-Woelfel, J. Fischer, R. Weiss, E. Bill, and A. X. TrautweinCite this: Inorg. Chem. 1990, 29, 13, 24…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSwitching between solid-state electroactivity, coupled with ionic conductivity, and semiconducting or dielectric properties in dry mixed-metal hexacyanoferrate powdersPawel J. KuleszaCite this: Inorg. Chem. 1990, 29, 13, 2395–2397Publication Date (Print):June 1, 1990Publicat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparison of dielectric and viscoelastic relaxation spectra of polyisopreneKeiichiro Adachi, Hirotsugu Yoshida, Fumiaki Fukui, and Tadao KotakaCite this: Macromolecules 1990, 23, 12, 3138–3144Publication Date (Print):June 1, 1990Publication History Published online1 May 200…
The optical transmission of transparent polycrystaliine La 2 O 3 strengthened Y 2 O 3 was measured in both the near‐ultraviolet and infrared regions at temperatures between 20° and 1400°C. The absorption remains low until about 900°C, but rises almost exponentially thereafter. The magnitude of this increase is a funct…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnthalpy-driven swelling of a polymer brushHugh R. Brown, K. Char, and V. R. DelineCite this: Macromolecules 1990, 23, 13, 3383–3385Publication Date (Print):June 1, 1990Publication History Published online1 May 2002Published inissue 1 June 1990https://pubs.acs.org/doi/10.102…
Un modele de formation de molecules chaines carbonnees, incluant les especes C 2n H, C n S, HC 2n+1 N (n=1-3) et SiC n (n=1-4), est developpe pour l'enveloppe circumstellaire de l'etoile carbonee de type avance IRC+10216 (CW Leo).
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, structure, and magnetic properties of a reactive complex containing a nearly linear MnIII-O-MnIII core, bis[N,N-bis(5-nitrosalicylidene)-1,7-diamino-3-azapentanato(2-)]oxodimanganeseCary A. Kipke, Michael J. Scott, Joel W. Gohdes, and William H. ArmstrongCite this…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTXPS and EXAFS studies of the reactions of cobalt(III) ammine complexes with gallium arsenide surfacesBruce J. Tufts, Ian L. Abrahams, Catherine E. Caley, Sharon R. Lunt, Gordon M. Miskelly, Michael J. Sailor, Patrick G. Santangelo, Nathan S. Lewis, A. Lawrence Roe, and Keith…
Abstract The existence of a heteropoly 18-molybdopyrophosphate was ascertained in both solid and solution states. The yellow complex was formed in solutions of 0.05 M (M=mol dm−3) Mo(VI)/5×10−3 M pyrophosphate/0.1–0.7 M HCl/60% (v/v) CH3CN at ambient temperatures, being isolated as tetraalkylammonium (R4N+) salts wher…
The effect of gamma-radiation on the surface chemical properties of polystyrene was studied by ESCA and FT-IR. Gamma-radiation produces surface >C=O and C-O containing functional groups only, and also causes oxidation to depths >10 nm as detected by ESCA. FT-IR spectra showed that below the top few molecular lay…
Abstract Structure, morphology, and chemical composition of illite/smectite (I/S) containing 30–50% smectite layers (% S) from Kinnekulle bentonites, Sweden, of diagenetic origin were examined using X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). Interlayer arrangements of I/S changed from r…