Results 171 to 180 of about 2,342 (214)

Research Progress on the Surface Modification of Basalt Fibers and Composites: A Review. [PDF]

Materials (Basel)
Zhu M, Zhu M, Zhai R, Zhu W, He J.
europepmc   +1 more source

ICR ANNUAL REPORT 2000(Volume 7) [PDF]

, 2001

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Composition analysis of polybutenes

Journal of Chromatography A, 1963
Abstract The structure and composition of polyolefins made from pure isobutylene and from isobutylene diluted with various amouts of other light olefins have been investigated. The techniques used were nuclear magnetic resonance and combined anaerobic pyrolysis and gas chromatography.
Edward M. Barrall, Roger S. Porter, Julian F. Johnson   +2 more
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Peroxidation of polybutene

Die Makromolekulare Chemie, 1963
AbstractThe autocatalytic peroxidation performed dircectly with air of linear polybutene in the absence of special initiators was studied; hydroperoxides, peroxides, “active” hydrogen, alcohols were determined by chemical methods in the oxidized product, and the ketonic carbonyls were determined qualitatively by I.R.
Giorgio Clerici, Enrico Beati, Febo Severini   +2 more
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Rubberlike Properties of Polybutene

Rubber Chemistry and Technology, 1940
Abstract Until the last decade the explanation of those properties for which rubber is unique was confined largely to the study of rubber itself. Duplication of these properties involved the synthesis of polymers from isoprene and its immediate homologs.
I. E. Lightbown, Per K. Frolich, W. J. Sparks, L. B. Turner, C. A. Klebsattel   +4 more
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Cohesive zone modelling of fracture in polybutene

Engineering Fracture Mechanics, 2006
Fracture properties of isotactic polybutene-1 have been investigated. Fracture tests have been conducted and relevant properties at initiation have been determined according to linear elastic fracture mechanics. Two distinct fracture mechanisms have been identified, one of them causing partial instability during crack propagation.
ANDENA, LUCA, RINK SUGAR, MARTA ELISABETH, J. G. WILLIAMS   +2 more
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Characterization of polybutenes

Journal of Applied Polymer Science, 1964
To characterize butene polymers, rapid and precise small- and large-scale column fractionation techniques have been developed for low molecular weight pure polyisobutenes and for mixed butene polymers. Fractionation results have been used to determine molecular weight distribution curves of typical commercial butene polymers.
Julian F. Johnson, William F. Haddon, Roger S. Porter   +2 more
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Electrical breakdown of polybutene oils

Journal of Electrostatics, 1979
Abstract The direct voltage electric strengths of a number of samples of polybutene oils have been measured using sphere - sphere and point - sphere electrode systems made form various metals. The effects of forced flow of the liquid between the electrodes and of temperature have been investigated.
A.J. Pearmain, T.J. Gallagher
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Peroxidation of isotactic polybutene

Journal of Polymer Science, 1961
AbstractThe reaction of direct peroxidation at 75–90°C. and the simultaneous or successive ones of degradation of the isotactic poly‐α‐olefins are followed through analytical measurements of the total peroxide oxygen content (dialkyl peroxides + alkyl hydroperoxides) and intrinsic viscosity measurements.
F. Severini, S. Toffano, E. Beati
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Solubility of Polybutene in Pure Solvents

Industrial & Engineering Chemistry, 1942
Abstract During the past few years interest in the preparation and properties of long-chain polymers has been intensified because of their importance in the manufacture of improved petroleum products, plastics, and chemical-resistant paints. Materials such as polybutene and rubber form solutions, the viscosities of which increase rapidly with ...
H. C. Evans, D. W. Young
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