Itaconic Acid


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

itaconic acid

[¦id·ə¦kän·ik ′as·əd]
(organic chemistry)
CH2:C(COOH)CH2COOH A colorless crystalline compound that decomposes at 165°C, prepared by fermentation with Aspergillus terreus; used as an intermediate in organic synthesis and in resins and plasticizers.

Itaconic Acid

 

an unsaturated dibasic carboxylic acid, H2C=C(COOH)—CH2COOH; colorless crystals. Melting point, 167°-168°C.

Itaconic acid yields chloranhydride on heating with thionyl chloride; it yields esters upon interaction with alcohols. It combines with halogens and hydrogen halides in a double bond and readily polymerizes during storage (hydroquinone can be used as an inhibitor). Itaconic acid is used in the manufacture of synthetic detergents; its esters are used in the production of copolymers with methacrylates and styrene, and as polyvinylchloride plasticizers.

References in periodicals archive ?
Lock, MR, El-Aasser, MS, Klein, A, Vanderhoff, JW, "Role of Itaconic Acid in Latex Particle Nucleation.
Itaconic acid production by immobilized Aspergillus terreus with varied metal additions.
The LCST values of IE and IB polymers containing itaconic acid, which is a dicarboxylic acid monomer, are higher than the LCST values of ME and MB polymers containing methacrylic acid, which is a monocarboxylic acid monomer.
In contrast, itaconic acid does not oligomerize with itself but instead is believed to copolymerize readily with other monomers (i.
In all the cases AAm, itaconic acid, MBA and APS were dissolved in water separately, and then mixed.
TABLE 31 CONSUMPTION OF ITACONIC ACID BY APPLICATION, 2008 (1,000 METRIC TONS) 49
MSA (99%) was synthesized by catalytic hydrogenation of itaconic acid according to the literature [23].
However, some properties such as adhesivity and compatibility can be improved by incorporating functionalizing water-soluble monomers in the shell (14-17), such as acrylic acid, methacrylic acid, itaconic acid (IA), n-isopropyl acrylamide, and 2-hydroxyethyl methacrylate, among others (18), (19).
com/reports/c78232) has announced the addition of "Production and Market of Itaconic Acid in China" to their offering.
Acrylamide (AM, Siam Chemicals, Bangkok, Thailand), itaconic acid (IA, Merck, Hohenbrunn, Germany), N, N'-methylenebisacrylamide (N-MBA, Fluka, Buchs, Switzerland), ammonium persulfate (APS, Merck, Hohenbrunn, Germany), N,N,N',N'-tetramethylethylenediamine (TEMED, Fluka, Buchs, Switzerland), and silica (Si[O.
Organic acids (citric acid, itaconic acid, lactic acid)
The stimuli responding properties of PNIPA hydrogels can be modified in several ways, including the copolymerization of NIPA with comonomers, such as acrylic acid, methacrylic acid, and itaconic acid (10-12), and the alteration of medium properties by adding surfactants, salts, or cosolvents (13-15).