Results 121 to 130 of about 6,513 (187)

Polymer Backbone Editing with Cyclopropenes via Olefin Metathesis. [PDF]

ACS Macro Lett
Zhang J, Gutekunst WR.
europepmc   +1 more source

Directed dihydroxylation of a poly(cyclooctadienol) toward densely-hydroxylated polyol adhesives.

Polym Chem
Cooke LS, Zhukhovitskiy AV.
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Preparation of primary amine-terminated polybutadiene from cis-polybutadiene

European Polymer Journal, 2021
Abstract As a telechelic polymer, the primary amine-terminated cis-polybutadiene (AmTPB) has a wide application prospect due to its active hydrogens in both end groups and high cis 1,4-chain structure. In this work, the AmTPB with high cis-1,4 content (>96%) was prepared for the first time by taking cis-polybutadiene as a starting material.
Suyun Jie, Bo-Geng Li
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Relaxation transitions in polybutadiene and in polybutadiene-methylstyrenes

Polymer Science U.S.S.R., 1987
Abstract The relaxation transitions in polybutadiene and in its copolymers with methylstyrene were studied by the methods of mechanical relaxation in the range −150–+350°. In this range, up to seventeen transitions of various nature were observed, most of them connected with the butadiene component in the copolymers.
G.M. Bartenev, V.V. Tulinova
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Crosslink density in polybutadiene

Journal of Polymer Science, 1958
AbstractThe crosslink density in polybutadiene has been determined by measurement of the polymer molecular weight by osmometry and the primary chain molecular weight by modifier analysis involving radioactive materials. Since the number of polymer molecules is equal to the number of primary chains less the number of crosslinkages, the experimental ...
L. H. Howland, A. Nisonoff, L. E. Dannals, V. S. Chambers   +3 more
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Arborescent Graft Polybutadienes

Macromolecules, 1997
Cascade-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., Michelberger, W., Moller, M.   +2 more
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Sorption and diffusion of ethanol vapor in polybutadiene/acrylonitrile, polybutadiene/styrene and polybutadiene based polyurethanes

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, Yongmin Huang, Dening Wang, Honglai Liu, Chunpu Hu   +4 more
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Phase Behavior of Polystyrene/Polybutadiene and Polystyrene/Hydrogenated Polybutadiene Mixtures:  Effect of the Microstructure of Polybutadiene

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, Seung Bum Chun, Stephen F. Hahn, Scott Q. Harper, Philip J. Savickas, David M. Meunier, Liang Li, Talat Yalcin   +7 more
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Synthesis of isoprenic polybutadiene macromonomers for the preparation of branched polybutadiene

European Polymer Journal, 2019
Abstract 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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Hydrogenation of Polybutadiene at High Pressure

Industrial & Engineering Chemistry Research, 2021
Fil: 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, Andrés Ciolino, Lidia M. Quinzani, Marcelo S. Zabaloy, Juan M. Milanesio   +4 more
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