Results 141 to 150 of about 200 (197)
Some of the next articles are maybe not open access.
Cationic polymerization of butadiene and copolymerization of butadiene and styrene
Journal of Polymer Science, 1951Abstract The cationic polymerization of butadiene with several Friedel‐Crafts catalysts has been described. Aluminum chloride and chlorosulfonic acid are active catalysts at −75°. The rate of polymerization at −75° is much faster than at the higher temperatures.
C. S. Marvel +5 more
openaire +1 more source
Low frequency vibrations of 1,3-butadiene, 1,3-butadiene-d4, and 1,3-butadiene-d6
Journal of Molecular Spectroscopy, 1973Abstract The absorption bands in the far infrared due to the torsional and in-plane skeletal bending vibrations have been examined in detail together with some mid-infrared bands. Torsional energy level spacings up to v 13 = 5 for butadiene and up to v 13 = 4 and 3, respectively, for the d 4 - and d 6 -compounds have been measured ...
A.R.H. Cole, A.A. Green, G.A. Osborne
openaire +1 more source
Species differences in the formation of butadiene monoxide from 1,3-butadiene
Archives of Toxicology, 1985When 1,3-butadiene is incubated with liver postmitochondrial fractions from mouse, rat, monkey or man and a NADPH-regenerating system, the formation rate of butadiene monoxide is different in the four species. With the exception of the rhesus monkey, the amount of epoxide is proportional to the monooxygenase activity.
U, Schmidt, E, Loeser
openaire +2 more sources
Emulsion Polymerization of Butadiene
1990The kinetics of the ab initio emulsion polymerization of butadiene was investigated using several emulsifiers and dissociative initiators. The steady polymerization rate in interval II was found to be highly insensitive to variations of the initiator concentration, suggesting a low initiator efficiency.
Weerts, P.A. +2 more
openaire +2 more sources
Chemical Research in Toxicology, 1995
A new method was developed to quantify the levels of 1,3-butadiene (BD), butadiene monoxide (BDO), and butadiene diepoxide (BDO2) in blood. The method was based on vacuum distillation of tissues followed by analysis of the distillates using multidimensional GC/MS.
W E, Bechtold +3 more
openaire +2 more sources
A new method was developed to quantify the levels of 1,3-butadiene (BD), butadiene monoxide (BDO), and butadiene diepoxide (BDO2) in blood. The method was based on vacuum distillation of tissues followed by analysis of the distillates using multidimensional GC/MS.
W E, Bechtold +3 more
openaire +2 more sources
Carcinogenesis, 1994
1,3-Butadiene (BD), an important commodity chemical used in the production of synthetic rubber, is carcinogenic in B6C3F1 mice and Sprague-Dawley rats, raising concern for potential carcinogenicity in humans. Mice are more sensitive than rats to the carcinogenic effects of BD.
M W, Himmelstein +3 more
openaire +2 more sources
1,3-Butadiene (BD), an important commodity chemical used in the production of synthetic rubber, is carcinogenic in B6C3F1 mice and Sprague-Dawley rats, raising concern for potential carcinogenicity in humans. Mice are more sensitive than rats to the carcinogenic effects of BD.
M W, Himmelstein +3 more
openaire +2 more sources
Macromolecules, 1993
Atomistic models of amorphous poly(1,4-trans-butadiene) and isotactic poly(1,2-butadiene) have been obtained at bulk density by carrying out molecular mechanics and molecular dynamics calculations under periodic boundary conditions, along the lines of the previous study of poly(1,4-cis-butadiene).
Eung-Gun Kim +2 more
openaire +1 more source
Atomistic models of amorphous poly(1,4-trans-butadiene) and isotactic poly(1,2-butadiene) have been obtained at bulk density by carrying out molecular mechanics and molecular dynamics calculations under periodic boundary conditions, along the lines of the previous study of poly(1,4-cis-butadiene).
Eung-Gun Kim +2 more
openaire +1 more source
Copolymers of 1,3‐butadiene and 2,3‐dimethyl‐1,3‐butadiene
Journal of Polymer Science, 1949AbstractSome experiments on the polymerization of 2,3‐dimethyl‐1,3‐butadiene and its copolymerization with butadiene are reported. This monomer requires very little modifier as compared to butadiene.
C. S. Marvel, Jack L. R. Williams
openaire +1 more source
Stereoselective Cyclopropanation by Cyclocopolymerization of Butadiene
Journal of the American Chemical Society, 2002An unprecedented cyclopropanation by cyclopolymerization reaction is presented. In particular, catalytic copolymerization processes of ethene and butadiene lead with high trans selectivity to a complete cyclocopolymerization of butadiene units. Ethene-based copolymers including cyclopropane and cyclopentane rings, which can be relevant to polyolefin ...
PRAGLIOLA, Stefania +3 more
openaire +3 more sources
Enzymatic Hydration of Butadiene Monoxide and Its Importance in the Metabolism of Butadiene
19821,3-Butadiene is a major industrial chemical used in the production of synthetic elastomers such as polybutadiene and styrene-butadiene rubber (SBR). Like most of the unsaturated olefins, butadiene is metabolized in vivo. The first step of its biotransformation is the cytochrome P-450-dependent epoxidation to butadiene monoxide (Malvoisin et al, 1979).
E, Malvoisin, M, Mercier, M, Roberfroid
openaire +2 more sources