Results 191 to 200 of about 3,294 (264)
Some of the next articles are maybe not open access.
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.
A.J. Pearmain, T.J. Gallagher
openaire +2 more sources
Macromolecular rapid communications
This communication reports an effective strategy helping address the long-troubling melt processing issue of isotactic polybutene-1 (i-PB) caused by its extremely slow II-I crystal phase transition.
Huiping Yu, Jin-Yong Dong
semanticscholar +1 more source
This communication reports an effective strategy helping address the long-troubling melt processing issue of isotactic polybutene-1 (i-PB) caused by its extremely slow II-I crystal phase transition.
Huiping Yu, Jin-Yong Dong
semanticscholar +1 more source
IEEE International Conference on Dielectrics
The article primarily focuses on the impact of crystal form transformation on the breakdown and DC conductivity mechanisms of isotactic polybutene (iPB) and polybutene-block-propylene copolymer (PBA) materials. Differential scanning calorimetry (DSC) was
Zechao Yang, Zhonglei Li, B. Du
semanticscholar +1 more source
The article primarily focuses on the impact of crystal form transformation on the breakdown and DC conductivity mechanisms of isotactic polybutene (iPB) and polybutene-block-propylene copolymer (PBA) materials. Differential scanning calorimetry (DSC) was
Zechao Yang, Zhonglei Li, B. Du
semanticscholar +1 more source
Polymer Engineering & Science
In this paper, a series of novel trans‐1, 4‐polyisoprene/isotactic polybutene (TPI/iPB) in‐reactor blends were synthesized by isoprene and butene sequential two‐stage polymerization technology with spherical TiCl4/MgCl2 type Ziegler‐Natta catalyst.
Huafeng Shao +3 more
semanticscholar +1 more source
In this paper, a series of novel trans‐1, 4‐polyisoprene/isotactic polybutene (TPI/iPB) in‐reactor blends were synthesized by isoprene and butene sequential two‐stage polymerization technology with spherical TiCl4/MgCl2 type Ziegler‐Natta catalyst.
Huafeng Shao +3 more
semanticscholar +1 more source
The phase transition behavior of polybutene in partial melting/polybutene/polypropylene
Journal of Polymer SciencePolybutene (PB) is a typical polymer with various crystal forms: I, II, III, and I′. Among them, the mechanical properties of Form I PB is better but only Form II crystal can be obtained from the melt due to the kinetic advantage and then transform to ...
Enci Zhu +5 more
semanticscholar +1 more source
Solubility of Polybutene in Pure Solvents
Industrial & Engineering Chemistry, 1942Abstract 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
H. C. Evans, D. W. Young
openaire +2 more sources
Crystal Form Affecting DC Conductivity of Polybutene and Its Copolymer Insulation
IEEE transactions on dielectrics and electrical insulationThis article focuses on the dc conductivity mechanisms of isotactic polybutene (iPB) and polybutene-block-propylene copolymer (PBA) varying with crystal form at different temperatures (30 °C, 50 °C, 70 °C, and 90 °C) and electric fields 1–70 kV/mm).
Zhonglei Li, Zechao Yang, B. Du
semanticscholar +1 more source
Toughening of polybutene-1 with form I′ induced by rapid pressurization
CrysteEngComm, 2021Combined with in situ wide angle X-ray diffraction, the mechanical properties of polybutene-1 with rapid pressurization are investigated. The toughness of polybutene-1 can be improved significantly by forms I/I′ produced by rapid pressurization.
Yanping Liu +7 more
semanticscholar +1 more source
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, Richard S. Stein
openaire +2 more sources
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, Glover A. Jones
openaire +2 more sources