Results 211 to 220 of about 3,671 (259)

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.
W. J. Sparks, I. E. Lightbown, L. B. Turner, P. K. Frolich, C. A. Klebsattel   +4 more
openaire   +1 more source

Preparation of Polybutene-Based Thermoplastic Elastomers through the Copolymerization of 1-Butene with Higher α-Olefins

Polymer Chemistry
A series of 1-butene–based random copolymers were synthesized through the direct copolymerization of 1-butene with higher α-olefins, namely 1-octene (C8), 1-dodecene (C12), 1-hexadecene (C16), and 1-icosaene (C20).
Chao Liu, Fei Wang, Yuze Kang, Xiaohui Mao, Pan Li, Zhenzhen Ma, Yuesheng Li   +6 more
semanticscholar   +1 more source

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.
E. Beati, F. Severini, S. Toffano
openaire   +1 more source

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
openaire   +2 more sources

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.
T.J. Gallagher, A.J. Pearmain
openaire   +1 more source

Deformation of polybutene‐1 spherulites

Journal of Polymer Science Part A-2: Polymer Physics, 1967
AbstractThe 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
openaire   +1 more source

2D-INADEQUATE Structural Assignment of Polybutene Oligomers

The Journal of Organic Chemistry, 1997
The structure of polybutene oligomers has been unambiguously determined using NMR techniques. We used 2D-INADEQUATE to show that the major polybutene isomer synthesized via BF(3) catalysis has the expected structure with a tert-butyl group at the beginning of the chain and the expected methylvinylidene double bond at the other end.
James J., Harrison, Donald C., Young, Charles L., Mayne   +2 more
openaire   +2 more sources

Vistanex Polybutene—Rubber Blends

Rubber Chemistry and Technology, 1941
Abstract 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.
openaire   +1 more source

Zur Toxikologie von Polybuten-(1)

F�hner-Weilands Sammlung von Vergiftungsf�llen Archiv f�r Toxikologie, 1968
Unter den Bedingungen eines halbjahrigen Futterversuchs (1% und 10% Gehalt) an Ratten fand sich kein Anhalt fur eine gesundheitliche Bedenklichkeit des Kunststoffs Polybuten-(1).
Gerhard Bornmann, Arnold Loeser
openaire   +1 more source

Polybutenes in Orchard Pest Control

The Canadian Entomologist, 1962
In 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).
openaire   +1 more source