Materials Literature
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A series of polymers, bisphenol A-based poly(phosphoesters), were evaluated as degradable biomaterials. Degradation was observed for the four polymers studied under both in vitro and in vivo conditions. The rate of degradation was affected by polymer side-chain structure and correlated with the swelling behavior. The…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPicosecond and nanosecond studies of the photoreduction of benzophenone by N,N-diethylaniline and triethylamineC. Devadoss and Richard W. FessendenCite this: J. Phys. Chem. 1991, 95, 19, 7253–7260Publication Date (Print):September 1, 1991Publication History Published online1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQSAR (quantitative structure-activity relationship) studies on local anestheticsS. P. GuptaCite this: Chem. Rev. 1991, 91, 6, 1109–1119Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Published inissue 1 September 1991https://pubs.acs.o…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImpact improvement mechanism of HIPS with bimodal distribution of rubber particle sizeY. Okamoto, H. Miyagi, M. Kakugo, and K. TakahashiCite this: Macromolecules 1991, 24, 20, 5639–5644Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Pu…
Tungsten trioxide is being developed as a electrochromic material for smart windows. However, the relatively high electrical resistivity and overpotential for hydrogen evolution and oxidation affect their response time and electrical power consumption. Previous work on indicated that admixing of Pt onto significantly…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrganic/inorganic-molecular beam epitaxy: formation of an ordered phthalocyanine/tin(IV) sulfide heterojunctionK. W. Nebesny, G. E. Collins, P. A. Lee, Lai Kwan Chau, Jamie Danziger, Elizabeth Osburn, and N. R. ArmstrongCite this: Chem. Mater. 1991, 3, 5, 829–838Publication…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStretching polymer brushes in poor solventsA. Halperin and E. B. ZhulinaCite this: Macromolecules 1991, 24, 19, 5393–5397Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Published inissue 1 September 1991https://pubs.acs.org/doi/10.1021…
Abstract High density polyethylene (HDPE) was reinforced with 0‐40 wt% of wood flour (aspen). The effects of: stearic acid, mineral oil, maleated polyethylene wax, and sodium silicate on the tensile and impact strength of the composite were studied. The comparison of tensile properties of the composites showed that th…
Pt-Ti alloy films were studied for use as a lower electrode of the ferroelectric lead zirconate titanate (PZT) thin film capacitor. Pt-Ti alloy films with different Ti/Pt atomic ratios were first prepared by rf sputtering. Subsequently, PZT thin films were deposited also by rf magnetron sputtering on the Pt-Ti alloy m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEQCM studies of film growth, redox cycling, and charge trapping of n-doped and p-doped poly(thiophene)Ricardo Borjas and Daniel A. ButtryCite this: Chem. Mater. 1991, 3, 5, 872–878Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Publish…
A Gay-Berne fluid of prolate molecules with length-to-breadth ratio 3 is studied using molecular dynamics simulations. This fluid exhibits vapor, isotropic liquid, nematic, and smectic-B mesophases. For the bulk fluid we report new results along isochores that further delineate the smectic and nematic regions of the p…
Ein lipophiles Inneres und eine hydrophile Oberfläche charakterisieren Ammonium‐[8 2 · 3]‐micellanoate, bei denen es sich um Kaskadenpolymere handelt, die nur sp 3 ‐C‐Atome und CH 2 ‐Gruppen im Innern enthalten und CO ‐Gruppen an der Oberfläche. Die Micelleneigenschaften wurden durch Absorptions‐ und Fluoreszenzspektr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSize and shape characteristics of inorganic molecular ions and their relevance to crystallization problemsP. Michael D. Mingos and Andrew L. RohlCite this: Inorg. Chem. 1991, 30, 19, 3769–3771Publication Date (Print):September 18, 1991Publication History Published online1 Ma…
A cDNA construct (approximately 1 kb) of human BM-40 in a plasmid with the cytomegalovirus promoter and enhancer was used to produce several stable clones by transfecting two human cell lines (293, HT 1080). These clones showed a high expression of exogenous 1-kb BM-40 mRNA and no or only little endogenous 2.2-kb mRNA…
Monodisperse, spherical alumina powders were prepared by the controlled hydrolysis of aluminum alkoxide in a dilute solution consisting of octanoi and acetonitrile. The reagent concentration influenced the particle size, size distribution, morphology, and state of agglomeration. The addition of acetonitrile and octano…
The classical Maier-Saupe theory of spatially uniform nernatics is here extended to the case of distorted configurations. Under the assumption that the molecules are rodlike, the mean field potential is here defined as an average over a suitable neighborhood of the test molecule. The energy density thereby calculated…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic disproportionation of hydrogen peroxide by manganese complex [Mn(IV)(.mu.2-O)(SALPN)]2Erlund J. Larson and Vincent L. PecoraroCite this: J. Am. Chem. Soc. 1991, 113, 20, 7809–7810Publication Date (Print):September 1, 1991Publication History Published online1 May 20…
The structure and function of NAD(H)-glutamate dehydrogenase in plants was studied by using grapevine (Vitis vinifera L. cv Sultanina) callus grown under different nitrogen sources. The enzyme consists of two subunit-polypeptides, alpha and beta, with similar antigenic properties but with different molecular mass and…
Dispersed ceramic slurries with high concentrations of indifferent electrolyte have been shown to effectively eliminate mass segregation effects in composite materials. Furthermore, high packing efficiencies have been achieved with these systems. It has been suggested that the addition of high concentrations of indiff…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and characterization of poly(.beta.-hydroxyalkanoates) obtained from Pseudomonas oleovorans grown with mixtures of 5-phenylvaleric acid and n-alkanoic acidsY. B. Kim, R. W. Lenz, and R. C. FullerCite this: Macromolecules 1991, 24, 19, 5256–5260Publication Date (P…