Equations (1) and (2) are dynamic material balances on amine end groups (A), carboxyl
end groups (C) and water (W) in the molten polymer phase.
The amino group loses hydrogen, while the neighboring carboxyl
group loses a hydroxide group.
Oxidative methods to label CCK tended to destroy biological activity of the molecule through oxidation of the methionine residue in position three from the carboxyl
These changes could indicate degradation of the PLA/CNC composite films because ester linkages in PLA's main chain cleave to form carboxyl
endgroups, as illustrated in Fig.
In the spectrum of Schiff base L-2, the asymmetric carboxyl
stretching (COO-) was observed at 1626 cm-1which shifted on complexation with metals like Cu(II), Pd(II) and Pt(II) at 1629, 1629 and 1655 cm-1 respectively.
The leached ions bind with the polyanion chains via the carboxyl
groups to precipitate a hard polycarboxylic salts gel [18-20].
Most water-based additives in either the emulsion or the formulation (surfactants, flow additives, defoamers, etc.) are carboxyl
functional and will react with the isocyanate.
Organic acids are molecules characterized by the presence of carboxyl
groups, which make them acidic.
The newly-developed Atlas G-1205, a product of Croda, is said to be a low-foaming, non-ionic surfactant, a derivative of rosin for use in thermoplastic or elastomeric water-based systems to impart strong carboxyl
functionality and compatibility with anionic and cationic systems, according to the company.
Separate chapters list protection for the hydroxyl group, phenols and catechols, the carbonyl group, the carboxyl
group, the thiol group, the amino group, and the phosphate group.
The outer layer comprises at least one light-stable aliphatic thermoplastic polyurethane containing at least one pendent functional group selected from the group consisting of hydroxyl and carboxyl
functional groups, and at least one heat-activated crosslinking monomer or agent.
(Aichi, Japan) has patented a novel enzyme which has an activity to release side chain carboxyl
groups and ammonia from a protein by acting upon side chain amido groups in the protein.
Vanadyl (IV) and vanadate (V) binding to selected endogenous phosphate, carboxyl
, and amino ligands; calculations of cellular vanadium species distribution.
A typical C-shaped "molecular cleft' consists of two specially modified carboxyl
groups separated by a rigid molecular spacer.