Results 161 to 170 of about 14,793 (220)
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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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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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Life Sciences, 1989
Isoprene is one of the main constituents of endogenous origin in exhaled human breath. The concentration of isoprene seems to vary with states of sleep and wakefulness, increasing during sleep and decreasing sharply just after awakening. Thus, isoprene may be involved in in sleep upholding.
A, Cailleux, P, Allain
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Isoprene is one of the main constituents of endogenous origin in exhaled human breath. The concentration of isoprene seems to vary with states of sleep and wakefulness, increasing during sleep and decreasing sharply just after awakening. Thus, isoprene may be involved in in sleep upholding.
A, Cailleux, P, Allain
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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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Ozarks Isoprene Experiment (OZIE): Measurements and modeling of the “isoprene volcano” [PDF]
Journal of Geophysical Research, 2005 The Ozarks Isoprene Experiment (OZIE) was conducted in July 1998 in Missouri, Illinois, Indiana, and Oklahoma. OZIE was designed to investigate the presumed strong isoprene emission rates from the Missouri Ozarks, where there is a high density of oak trees that are efficient isoprene emitters.
Alex Guenther, Brian Lamb, Jay Turner
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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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Atmospheric photooxidation of isoprene part II: The ozone‐isoprene reaction
International Journal of Chemical Kinetics, 1992AbstractA 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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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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