Results 171 to 180 of about 10,860 (230)
Catalytic degradation of polybutadiene
Polymer Degradation and Stability, 2004 The effect of Cobalt Fischere-Tropsch catalyst on the thermal degradation of cis-1,4 polybutadiene, polystyrene, chloride) and poly(vinyl acetate) in solution was investigated at various temperatures.
Giridhar Madras
exaly +1 more source
Impact modification of poly(caprolactam) by copolymerization with a low molecular weight polybutadiene [PDF]
Polymer, 1988 Caprolactam and a reactive, low molecular weight polybutadiene were polymerized in an autoclave, followed by post-condensation in the solid state. The rubber concentration was varied (0–30 wt%).
R J Gaymans
exaly +2 more sources
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Arborescent Graft Polybutadienes
Macromolecules, 1997Cascade-branched, “graft on graft” polybutadienes, denoted arborescent graft polymers, were prepared by hydrosilylation of polybutadiene vinyl groups with chlorodimethylsilane, followed by grafting with living polybutadiene chains. Repeated hydrosilylation−anionic grafting cycles led to a treelike outward growth, yielding well-defined, spherically ...
Hempenius, Mark A. +2 more
openaire +2 more sources
European Polymer Journal, 2004
The sorption and diffusion behavior of ethanol vapor in series of polyolefine based polyurethanes (PU) made from hydroxyl-terminated polybutadiene/acrylonitrile (HTBN), hydroxyl-terminated polybutadiene/styrene (HTBS) and hydroxyl-terminated polybutadiene (HTPB) were investigated by using the quartz-spring, DSC, FTIR and AFM. The equilibrium absorption
Yurun Yang +4 more
openaire +1 more source
The sorption and diffusion behavior of ethanol vapor in series of polyolefine based polyurethanes (PU) made from hydroxyl-terminated polybutadiene/acrylonitrile (HTBN), hydroxyl-terminated polybutadiene/styrene (HTBS) and hydroxyl-terminated polybutadiene (HTPB) were investigated by using the quartz-spring, DSC, FTIR and AFM. The equilibrium absorption
Yurun Yang +4 more
openaire +1 more source
Macromolecules, 1998
The effect of the microstructure on the phase behavior of mixtures of polybutadiene (PB) and poly(ethylene-co-1-butene) (PEB) with polystyrene (PS) has been investigated. A series of PBs with 1,2-addition content ranging from 7 to 93% were synthesized by anionic polymerization, and a portion of each was subsequently hydrogenated to yield PEB.
Chang Dae Han +7 more
openaire +1 more source
The effect of the microstructure on the phase behavior of mixtures of polybutadiene (PB) and poly(ethylene-co-1-butene) (PEB) with polystyrene (PS) has been investigated. A series of PBs with 1,2-addition content ranging from 7 to 93% were synthesized by anionic polymerization, and a portion of each was subsequently hydrogenated to yield PEB.
Chang Dae Han +7 more
openaire +1 more source
Hydrogenation of Polybutadiene at High Pressure
Industrial & Engineering Chemistry Research, 2021Fil: Menossi, Matias. Universidad Nacional de Córdoba. Instituto de Investigación y Desarrollo en Ingeniería de Procesos y Química Aplicada. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba.
Matías Menossi +4 more
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Synthesis of isoprenic polybutadiene macromonomers for the preparation of branched polybutadiene
European Polymer Journal, 2019Abstract Polybutadiene macromonomers with a high 1,4-microstructure content and a polymerizable isoprene end group were synthesized by termination of living polybutadienyllithium chains. While different isoprene derivatives were investigated as terminating agents for the preparation of the macromonomers, 2-bromomethyl-1,3-butadiene provided the best ...
Vishnu D. Deepak, Mario Gauthier
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Journal of Applied Polymer Science, 2004
AbstractA series of polyurethane (PU) films made from toluene diisocyanate (TDI), 1,4‐butanediol (BDO), and hydroxyl‐terminated polybutadiene (HTPB), hydroxyl terminated polybutadiene/styrene (HTBS), or hydroxyl terminated polybutadiene/acrylonitrile (HTBN) was synthesized by solution polymerization.
Yurun Yang +5 more
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AbstractA series of polyurethane (PU) films made from toluene diisocyanate (TDI), 1,4‐butanediol (BDO), and hydroxyl‐terminated polybutadiene (HTPB), hydroxyl terminated polybutadiene/styrene (HTBS), or hydroxyl terminated polybutadiene/acrylonitrile (HTBN) was synthesized by solution polymerization.
Yurun Yang +5 more
openaire +1 more source
Rubber Chemistry and Technology, 1967
Abstract Polybutadienes made with six different catalyst systems were examined: (1) butyllithium, (2) “nickel-based”, (3) alfin, (4) “titanium-based”, (5) “cobalt-based”, and (6) free radical emulsion. The microstructure and macrostructure of the polybutadienes have been determined and are compared to the results published in the literature ...
W. S. Bahary, D. I. Sapper
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Abstract Polybutadienes made with six different catalyst systems were examined: (1) butyllithium, (2) “nickel-based”, (3) alfin, (4) “titanium-based”, (5) “cobalt-based”, and (6) free radical emulsion. The microstructure and macrostructure of the polybutadienes have been determined and are compared to the results published in the literature ...
W. S. Bahary, D. I. Sapper
openaire +1 more source
Macromolecules, 1986
Hydrogenation de polybutadienes-1,4 et 1,2 atactique ou syndiotactique, a 100°C sous 50 bar d'hydrogene, en presence de (PPh) 3 ...
Yoshiharu Doi +3 more
openaire +1 more source
Hydrogenation de polybutadienes-1,4 et 1,2 atactique ou syndiotactique, a 100°C sous 50 bar d'hydrogene, en presence de (PPh) 3 ...
Yoshiharu Doi +3 more
openaire +1 more source