conjugated diene

conjugated diene

[′kän·jə‚gād·əd ′dī‚ēn]
(organic chemistry)
An acyclic hydrocarbon with a molecular structure containing two carbon-carbon double bonds separated by a single bond.
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A rubber composition comprising: (A) a conjugated diene rubber which is obtained by polymerizing a conjugated diene compound or polymerizing a conjugated diene compound and an aromatic vinyl compound and has a group having an active hydrogen and a group capable of chemically binding to a silica, (B) a silica, (C) a silane coupling agent (1) capable of reacting with a carbon-carbon double bond of the conjugated diene in the conjugated diene rubber, and (D) a silane coupling agent (II) capable of reacting with the group having an active hydrogen; a method for producing a rubber composition, which comprises mixing the above-mentioned composition; and a tire which is obtained by crosslinking and molding the rubber composition obtained by the method for production.
Susceptibility of LDL particles to oxidation was determined from the rate of conjugated diene formation after exposure to copper chloride.
This kinetically preferred bromination product isomerizes readily to thermodynamically more stable E, Z-BrMe isomers, with temperatures on the order of 130 [degrees] C promoting rearrangement as well as HBr elimination to conjugated diene (6).
The elastic material contains a crosslinked network formed from a branched block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.
made oil-resistant blends by melt-kneading 10 to 35 wt% poly(arylene ether), 15 to 40 wt% polyolefin, 10 to 35 wt% acid-functionalized hydrogenated block copolymer of an alkenyl aromatic compound, and a conjugated diene.
has obtained a patent for a curable urethane polymer adhesive or coating consisting essentially of a latex comprised of at least one ethylenically unsaturated monomer and an aliphatic conjugated diene monomer, a hydroxyl functional monomer and a colloid with hydroxyl functionality selected from the group consisting of polyvinyl alcohols, glycols and hydroxethyl cellulose, present with the ethylenically unsaturated monomer and hydroxyl functional monomer during polymerization so as to become incorporated into the latex and a moiety having isocyanate functionality.
In a second set of experiments the effectiveness of erybraedin C, bitucarpin A, and plicatin B on inhibition of conjugated diene formation, in the presence of [Cu.
Black tea, green tea, ginger and coriander water extracts inhibited conjugated diene formation by 99.
Elevation of conjugated diene levels, the index of lipid peroxidation and cell damage was reported in the cerebral cortex region after ischemia and reperfusion)
Fine spectral detail due to conjugated diene and triene systems characteristic of extra-virgin oil is swamped and lost when refined oils are present, and this is readily observable oil the graphic display of the S22 and S32 instruments.
Other types of synthetic rubber imported by then country include polybutadiene styrene latex, isobutene isoprene (butyl) rubber (IIR), isoprene rubber (IR) and ethylene propylene non conjugated diene rubber (EPDM).