Results 111 to 120 of about 276 (151)
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Rubberlike Properties of Polybutene
Rubber Chemistry and Technology, 1940Abstract 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.
W. J. Sparks +4 more
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Peroxidation of isotactic polybutene
Journal of Polymer Science, 1961AbstractThe 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.
E. Beati, F. Severini, S. Toffano
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The heat of fusion of polybutene‐1
Journal of Polymer Science Part B: Polymer Physics, 1986AbstractThrough x‐ray diffraction, the changes in the unit‐cell parameters of crystal forms I and II of polybutene‐1 were followed from room temperature to the melting point. These data were combined with the results of other measurements to computer the heats and entropies of fusion by use of the Clapeyron equation.
Howard W. Starkweather Jr. +1 more
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Electrical breakdown of polybutene oils
Journal of Electrostatics, 1979Abstract 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.
T.J. Gallagher, A.J. Pearmain
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Spherulite deformation in polybutene‐1
Journal of Polymer Science Part B: Polymer Letters, 1963Abstract : The postulate of spherulite deformation has now been verified by direct microscopic observation. Films of polybutene-1, about 1 mil thickness, (made from samples obtained through the courtesy of Phillips Petroleum Company) were prepared by molding in a laboratory press at 150 C for 15 min at 2,000 psi pressure and then lowering the ...
K. Sasaguri, M. B. Rhodes, R. S. Stein
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Deformation of polybutene‐1 spherulites
Journal of Polymer Science Part A-2: Polymer Physics, 1967AbstractThe deformation of fresh and aged polybutene‐1 spherulitic samples has been investigated by microscopic observation, interferometry, studying macroscopic and spherulitic birefringence changes, and study of light‐scattering patterns. The spherulite deformation is not affine, the microscopic deformation ratio being less than the macroscopic ...
Rena Yang, R. S. Stein
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Vistanex Polybutene—Rubber Blends
Rubber Chemistry and Technology, 1941Abstract From the foregoing data on blends of Vistanex Polybutene and rubber, it is evident that these two materials complement one another. Each has properties which the other lacks, and blends of the two can be made to emphasize the more desirable properties of either one.
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Polybutenes in Orchard Pest Control
The Canadian Entomologist, 1962In British Columbia the control of phytophagous mites, especially the European red mite, Panonychus ulmi (Koch), and the McDaniel spider mite, Tetranychus mcdanieli McG., is becoming increasingly difficult, mainly because of the mites' ability to develop resistance to most acaricides in a relatively short time (3).
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