Results 151 to 160 of about 200 (197)
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Cis-1,4-copolymerization of butadiene and 2-alkyl butadienes
Polymer Science U.S.S.R., 1987A neodymium-containing catalytic system has been used to synthesize homopolymers of 2-alkyl butadienes-1,3 (A), where the alkyl is ethyl or isopropyl, and the copolymers of A with butadiene-1,3 (B) mostly containing (>95%) cis-1,4-units (1H and 13C NMR).
K.D. Skuratov +3 more
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The characteristic ratio of butadiene-styrene and butadiene-acrylonitrile copolymers
Collection of Czechoslovak Chemical Communications, 1983A method advanced recently is used to estimate the characteristic ratio C∞ for statistical butadiene-styrene and butadiene-acrylonitrile copolymers from the reported data of the limiting viscosity number and sedimentation coefficient. The results are compared with those of the traditional methods.
Miloslav Bohdanecký, Vladimír Petrus
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Photoionization of 1,3-Butadiene, 1,2-Butadiene, Allene, and Propyne
The Journal of Chemical Physics, 1968Using a photoionization mass spectrometer, the ionization potentials of the parent molecules and the appearance potentials of the fragment ions, observed below 13 eV, have been determined for 1,3-butadiene, 1,2-butadine, allene, and propyne. The ionization potentials of 1,3-butadiene are 9.07 ± 0.02 eV, 9.80 ± 0.04 eV, and 11.7 ± 0.04 eV. The adiabatic
Albert C. Parr, Fred A. Elder
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Rubber Chemistry and Technology, 1944
Abstract 1. The most prominent polymerization of pure butadiene in the absence of peroxides is dimerization. This reaction is thermally activated, and does not appear to be catalyzed by peroxides or by steel surfaces. 2. Butadiene is also capable of independent polymerization to high-molecular-weight polymer, but in the absence of peroxides ...
Richard F. Robey +2 more
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Abstract 1. The most prominent polymerization of pure butadiene in the absence of peroxides is dimerization. This reaction is thermally activated, and does not appear to be catalyzed by peroxides or by steel surfaces. 2. Butadiene is also capable of independent polymerization to high-molecular-weight polymer, but in the absence of peroxides ...
Richard F. Robey +2 more
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Synthesis and Properties of 2,3‐Diethynyl‐1,3‐Butadienes
Angewandte Chemie - International Edition, 2020Michael Sherburn +2 more
exaly
The Paradox of Butadiene Epidemiology
Journal of Occupational and Environmental Medicine, 1989openaire +2 more sources