Výsledky vyhledávání - "R. N. HASZELDINE"

Polymerization of vinyl chloride by use of modified Ziegler–Natta catalysts. I. Overall kinetic features

Autor: Peter J. T. Tait, A. G. Chesworth, R. N. Haszeldine

Publikováno v: Journal of Polymer Science: Polymer Chemistry Edition. 12:1703-1716

Vinyl chloride has been polymerized by a modified Ziegler-Natta type catalyst VOCl2 · 2THF–Al(i-Bu)3–THF, and the kinetics of the polymerization reaction have been investigated in some detail. The present kinetic analysis has demonstrated that t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c6783ec810bfeb0c78dd63adc1fa546
https://doi.org/10.1002/pol.1974.170120810

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The cause of the colour of Blue John and other purple fluorites

Autor: R. S. W. Braithwaite, W. T. Flowers, R. N. Haszeldine, M. Russell

Publikováno v: Mineralogical Magazine. 39:401-411

Summary‘Blue John’ andother purple fluorites have been studied by a wide range of techniques. Hydrocarbons are not the cause of the colour of these fluorites. No significant difference in the concentrations of 73 elements between the purple and c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8280c0431e394eba17b668e1ff2f4db1
https://doi.org/10.1180/minmag.1973.039.304.03

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Organosilicon chemistry. Part II. The thermal decomposition of hexamethyldisilane, the Me3Si–SiMe3bond dissociation energy, and the ionisation potential of the trimethylsilyl radical

Autor: G. J. Leigh, J. A. Connor, R. D. Sedgwick, R. N. Haszeldine

Publikováno v: J. Chem. Soc. A. :768-771

The thermal decomposition of hexamethyldisilane has been studied in a flow system connected to a mass spectrometer to give the bond dissociation energy D(Me3Si–SiMe3)= 49 ± 6 kcal. mole–1. This value has been combined with a measured appearance

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9d7290e80f3a4530552ba020011c53d
https://doi.org/10.1039/j19670000768

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Application of mass spectrometry to the study of fluoropolymers. Part 1.—The co-polymer from trifluoronitrosomethane (CF3NO) and diazomethane (CH2N2)

Autor: R. N. Haszeldine, W. T. Flowers, E. Henderson, R. D. Sedgwick

Publikováno v: Trans. Faraday Soc.. 62:1120-1128

The application of mass spectrometric techniques to the study of the copolymer (CF3NOCH2)n is described. Under favourable conditions the copolymer gives mass spectra with a fragmentation pattern which repeats at intervals corresponding to the mass of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c85eb988c119c87800fc9f6ae4b758ec
https://doi.org/10.1039/tf9666201120

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Organometallic and organometalloidal fluorine compounds. Part XII. Bistrifluoromethylphosphinic acid and related phosphorus oxy-acids

Autor: H. J. Emeléus, Ram Chand Paul, R. N. Haszeldine

Publikováno v: J. Chem. Soc.. :563-574

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c497cf5755fd98f456d5e286ce84aba
https://doi.org/10.1039/jr9550000563

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Polyfluorocyclopentadienes. Part III. Diels–Alder reactions of perfluorocyclopentadiene

Autor: K. G. Orrell, A. C. Harrison, R. N. Haszeldine, R. E. Banks

Publikováno v: J. Chem. Soc. C. :1608-1621

Perfluorocyclopentadiene Partakes IN The Diels–Alder reaction (a) as a diene in its thermal reactions with dimethyl acetylenedicarboxylate (→ dimethyl 1,2,3,4,7,7-hexafluorobicylo[2,2,1]hepta-2,5-diene-5,6-dicarboxylate), ethylene (→ 1,2,3,4,7,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6350ef0d99806a39a675fe753a4bb388
https://doi.org/10.1039/j39670001608

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Application of mass spectrometry to the study of fluoropolymers. II. The copolymer from trifluoronitrosomethane (CF3NO) and tetrafluoroethylene (C2F4)

Autor: R. D. Sedgwick, W. T. Flowers, E. Henderson, R. N. Haszeldine, A. K. Lee

Publikováno v: Journal of Polymer Science Part A-1: Polymer Chemistry. 10:3489-3496

The techniques of mass spectrometry have been applied to the copolymer from tri-fluoronitrosomethane (CF3NO) and tetrafluoroethylene (C2F4). The copolymer yields spectra of a repetitive nature, typical of the repeating units in the polymer chain. Mol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18255db16772ad87387886eb00446d70
https://doi.org/10.1002/pol.1972.170101204

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