polyacid


Also found in: Medical, Wikipedia.

polyacid

(ˈpɒlɪˌæsɪd) chem
n
(Chemistry) a compound made up of two or more hydroxyl groups
adj
(Chemistry) relating to a compound of two or more hydroxyl groups
Translations
References in periodicals archive ?
In the range of pH values from 5 to 11, the effective viscosity of the bases remains practically unchanged, which can be explained by the complexation of the polyacid with the amines to be studied.
The polymers are formed by oxidation polymerization of monomers such as pyrrole and thiophene from solutions with polyacid, water and an aprotic solvent such as N methylformamide.
Restorative options include glass ionomer cements (GIC), resinmodified glass ionomer cements (RMGIC), polyacid modified resin composites (PMRC), resin composites (RC), amalgam, stainless steel crowns (SSCs), and indirect adhesive or cast onlays or crowns.
Four types of materials are commonly used for direct restorations: resin composites, polyacid modified resin composites, glass-ionomer cement and resin modified glass-ionomer cement.
The Giomer concept in based on PRG (Pre Reacted Glass) technology: a glass core, surrounded by a glass ionomer phase enclosed within a polyacid matrix.
If this is insufficient, the addition of a linear film-forming polyacid, such as the commercially available car-boxymethycellulose or alginic acid, has been shown in bonding studies to provide acidic coatings strongly adherent to cellulosic fibers.
CCP Composites US LLC has been granted a patent for a thermosetting, crosslinkable resin composition suitable for preparing a gel coat, the composition is comprised of: a polyester acrylic polymer having an average of more than two polymerizable carbon-carbon double bonds in each molecule, the carbon-carbon double bonds in the polyester acrylic polymer being from a reaction product of a saturated polyacid half-ester having an average acid functionality of two or more and an unsaturated epoxide monomer in about chemically equivalent amounts to furnish one epoxy group per carboxyl group, the saturated polyacid half-ester being the reaction product of one or more polyols having an average of at least two hydroxy
Fluorides represent the basic component of glass powder and if it is to be efficiently extracted by the polyacid it has to be in crystalline form as fluorite [5].
Tamol Dispersants from Dow offer formulators a diverse selection of polyacid, hydrophilic copolymer, and hydrophobic copolymer dispersants to meet a variety of formulation demands.
Combining glycerine (a byproduct from processing vegetable or animal fats) with an organic polyacid like citric acid can make bio-derived polyesters.