Results 151 to 160 of about 48,855 (207)
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Haemoglobin adducts from isoprene and isoprene monoepoxides
Xenobiotica, 19981. Isoprene is metabolised in vitro by oxygenation of either double bond to 2-ethenyl-2-methyloxirane (epoxide A) and 2-(1'-methylethenyl)oxirane (epoxide B). The reactivity in vitro and formation in vivo of the monoepoxides of isoprene were studied by the formation of adducts to N-terminal valines in haemoglobin (Hb).
E, Tareke +3 more
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2015
Isoprene is a volatile C5 hydrocarbon. It is produced by a wide variety of organisms and has been shown to play a role in protection of plants under abiotic stress conditions. It also has many different uses as an industrial chemical: most notably as a precursor for synthetic rubbers, but also for production of elastomers, copolymers, adhesives, and ...
Vickers, Claudia E., Sabri, Suriana
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Isoprene is a volatile C5 hydrocarbon. It is produced by a wide variety of organisms and has been shown to play a role in protection of plants under abiotic stress conditions. It also has many different uses as an industrial chemical: most notably as a precursor for synthetic rubbers, but also for production of elastomers, copolymers, adhesives, and ...
Vickers, Claudia E., Sabri, Suriana
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Electrical Discharge Mechanisms. Isoprene and Isoprene-d4
Nature, 1965THE mechanistic pathways of reactions in an electrical discharge are of interest because of their relevance, on one hand, to reactions in primordial atmospheres1–4 and, on the other, to mass spectrometric electron impact mechanisms5–8. Although simple mixtures containing methane have been studied1–4, relatively little is known about the mechanisms of ...
J. DAVID CALLISTER, EDWARD R. THORNTON
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ANIONIC POLYMERIZATION OF ISOPRENE
Canadian Journal of Chemistry, 1964The polymerization of isoprene with butyllithium in cyclohexane has been studied. The initiation reaction was found to be complex; plots of conversion of butyllithium against time are sigmoidal. The order with respect to the initiator was found to be between one-half and one.
D. J. Worsfold, S. Bywater
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Isoprene: background and issues
Toxicology, 1996Isoprene monomer is derived from petroleum cracking and is used in the manufacturing of polyisoprene, butyl rubber and a variety of copolymers. It is also the monomeric unit of naturally occurring terpenes (e.g. lycopenes, the pigmentation in tomatoes). Isoprene occurs in tobacco smoke and it is released by a wide range of plants and mammals (including
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Styrene and isoprene friction factors in styrene-isoprene matrices
Journal of Polymer Science Part B: Polymer Physics, 1998Monomeric friction factors, ζ, for polystyrene (PS), polyisoprene (PI), and a polystyrene-polyisoprene (SI) diblock copolymer have been determined as a function of temperature in four poly(styrene-b-isoprene-b-styrene-b-isoprene) tetrablock copolymer matrices.
Jodi M. Milhaupt +3 more
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RCSB Protein Data Bank, 2016
Plants release a billion metric tons of isoprene and other organic gases every year.
Di Costanzo, L. Goodsell, D. S.
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Plants release a billion metric tons of isoprene and other organic gases every year.
Di Costanzo, L. Goodsell, D. S.
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Journal of the American Chemical Society, 1937
1,132,186. Preparing polyisoprene and latex thereof. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 18 Oct., 1967 [20 Oct., 1966], No. 47446/67. Heading C3P. Polyisoprene is made by contacting isoprene, in the presence of an inert hydrocarbon solvent, with a catalyst formed by reacting (1) an aluminium trialkyl with TiCl 4 in a molar ratio between 0A7
William H. Carmody, Marie O. Carmody
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1,132,186. Preparing polyisoprene and latex thereof. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 18 Oct., 1967 [20 Oct., 1966], No. 47446/67. Heading C3P. Polyisoprene is made by contacting isoprene, in the presence of an inert hydrocarbon solvent, with a catalyst formed by reacting (1) an aluminium trialkyl with TiCl 4 in a molar ratio between 0A7
William H. Carmody, Marie O. Carmody
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Metabolism of isoprene in vivo
Toxicology, 1996Available data suggest that: (1) the greater uptake of isoprene in mice relative to rats may not contribute to differences in sensitivity because the blood levels of total metabolites are similar in the two species; (2) in rats, saturation of blood levels of isoprene monoxide and the hydrocarbon could not be demonstrated at inhaled isoprene ...
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Die Makromolekulare Chemie, 1979
AbstractThe mixture of isomeric dimers obtained by the dimerization of isoprene, was analyzed. The study of dimer structures obtained after deactivation of the dianionic dimers by addition of a suitable reagent, revealed the nature of the intermediate and the weight of mesomeric forms of the initial radical anion in the case of an electron transfer ...
Francoise Clouet, Jean Brossas
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AbstractThe mixture of isomeric dimers obtained by the dimerization of isoprene, was analyzed. The study of dimer structures obtained after deactivation of the dianionic dimers by addition of a suitable reagent, revealed the nature of the intermediate and the weight of mesomeric forms of the initial radical anion in the case of an electron transfer ...
Francoise Clouet, Jean Brossas
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