hydroxyl group

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Related to hydroxyl group: Sulfhydryl group

hydroxyl group (hī·drkˑ·sl grōōpˑ),

n the functional group (—OH) found in molecules of alcohols and water.
References in periodicals archive ?
Flory's assumption is assumed to hold where the reactivity a hydroxyl group is independent of the size of molecule to which the hydroxyl group is attached.
Although oleanolic acid (2) showed limited inhibitory activity, we found that adding a hydroxyl group at position C-2 of the oleanane type triterpenoids (Fig.
The product is modified with urethane linkage resulting from the addition reaction of free hydroxyl groups of HEABOA and isocyanate moiety of toluene 2,4--di isocyanate (TDI).
For the functionalized small/large latex blends, the presence of hydroxyl groups did not affect particle packing compared to the unfunctionalized latexes; in other words, there was no observed retardation of polymer interdiffusion.
The synthetic transformation steps performed are often relatively simple, exploiting the difference in the nuleohilicities of primary amino group (at C-2) versus the two hydroxyl groups (at C-3 and C-6).
In the case of [beta]-naphthol, the hydroxyl group is a relatively weak electron-releasing substituent, contributing to a slight increase of [pi]-electron density, and presumably to the strengthening of the Cs cation-[pi] interaction.
For the furanocoumarin type of compounds xanthotoxol (6) which is a simple furanocoumarin with the free hydroxyl group, is actually promoting the adipogenesis.
1] can be observed indicating the presence of intermolecular hydrogen bonded hydroxyl group having polymeric association.
The inner layer comprises a thermoplastic polyurethane resin material with at least one ethylenically unsaturated bond in its backbone, at least one pendent hydroxyl group, or a combination thereof, wherein an interfacial chemical bond is formed between at least one of an unreacted functional group of at least one light-stable aliphatic thermoplastic polyurethane and an unreacted functional group of at least one heat activated crosslinking monomer or agent of the outer layer and at least one of at least one ethylenically unsaturated bond and at least one pendent hydroxyl group of the inner layer.
In addition, positioning of a hydroxyl group at the 4-position would allow for strong hydrogen bonding interactions with the NZ atom of K105 and the NE2 atom of H107.
For instance, isocyanate binders work by reacting a nitrogen-containing polyisocyanate with the hydroxyl group of either a large aliphatic molecule (alkyd resin) or a phenolic polymer (phenolic urethane resin).