Results 151 to 160 of about 15,268 (209)
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Structure of Isoprene

Nature, 1946
A SHORT letter on an X-ray investigation of the structure of isoprene, chloroprene and butadiene at liquid air temperature was published in 19381, and a more detailed account of the work on butadiene has since been communicated to the Faraday Society2.
C J B, CLEWS, A, SCHALLAMACH
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Haemoglobin adducts from isoprene and isoprene monoepoxides

Xenobiotica, 1998
1. 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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Isoprene

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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ANIONIC POLYMERIZATION OF ISOPRENE

Canadian Journal of Chemistry, 1964
The 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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Electrical Discharge Mechanisms. Isoprene and Isoprene-d4

Nature, 1965
THE 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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Atmospheric photooxidation of isoprene part II: The ozone‐isoprene reaction

International Journal of Chemical Kinetics, 1992
AbstractA series of experiments have been performed to study the ozone‐isoprene reaction in a smog chamber by adding externally produced O3 to the hydrocarbon in the dark. A chemical tracer, methyl cyclohexane, was added to probe the OH formation in the system.
Paulson, Suzanne E.   +2 more
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Metabolism of isoprene in vivo

Toxicology, 1996
Available 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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Isoprene: background and issues

Toxicology, 1996
Isoprene 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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Diversity of the Biosynthesis of the Isoprene Units

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Tomohisa, Kuzuyama, Haruo, Seto
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Styrene and isoprene friction factors in styrene-isoprene matrices

Journal of Polymer Science Part B: Polymer Physics, 1998
Monomeric 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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