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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The process comprises reacting a halobutyl polymer with at least one nitrogen and/or phosphorous based nucleophile to provide a halobutyl ionomer comprising conjugated diene units; grafting of an amine-reactive dienophile to said ionomer to form a functionalized ionomer; and optionally blending the resulting functionalized ionomer with polyamide.
9) The investigators previously observed antioxidant activities exhibited by volatile extracts isolated from thyme (as well as various other herbs and spices) using aldehyde/carboxylic acid as well as conjugated diene assays.
The sequence begins with the isomerization of LA to cis-9, trans-11 CLA, followed by the hydrogenation of the cis-double bond of the conjugated diene to yield a trans-11 octadecenoic acid (trans-vaccenic acid).
After chloroform evaporation under inert atmosphere and addition of cyclohexane, conjugated diene concentrations were determined spectrophotometrically ([lambda] = 233 nm, GBC 911A, Bio-Rad Laboratories).
Serum conjugated diene levels of the IBS group was significantly higher than that of the control group (pless than 0.
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 plasma collected at the 6th week was used to determine total cholesterol as well as to evaluate the lipid oxidation resistance using the conjugated diene assay.
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.