Itaconic Acid


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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 ?
Those hydrogen bonds between itaconic acid and chitosan act as additional physical crosslinking in the gel and hence, their breakage leads to lower degree of crosslinking and therefore larger alcogel volume.
In addition, the peak at 3.3-3.6 ppm is due to methylene proton of itaconic acid 7.4 ppm for CH of fumaric acid.
(12.) Lock, MR, El-Aasser, MS, Klein, A, Vanderhoff, JW, "Role of Itaconic Acid in Latex Particle Nucleation." J.
Factors affecting the growth form of Aspergillus terreus NRRL 1960 in relation to itaconic acid fermentation.
In this study, we used polypropylene grafted with itaconic acid (PP-g-IA) as a novel compatibilizer to improve the dispersion effects that occur upon blending PP and EVOH.
N-isopropyl acrylamide (NIPAAm) (Aldrich, Milwaukee, USA), methacrylamide (MAm) (Merck, Darmstadt, Germany), methacrylic acid (MA) (Merck, Darmstadt, Germany) and itaconic acid (IA) (Sigma, St.
The functional acid monomer type (i.e., vinylphosphonic acid, acrylic acid, methacrylic acid, and itaconic acid), the partitioning of acid monomer in the polymer or aqueous phase during the emulsion polymerization and the role of the latex polymer particle size were investigated.
The modified elastomer must have a functional group that can interact with a carbonyl group such as maleic anhydride, phthalic anhydride, acrylic acid, maleic acid, itaconic acid, epoxy, or a glycidyl group.
In our previous work, we reported the synthesis, and the structural and thermal characterization of fully renewable BDIS [5, 6] copolyamides from itaconic acid (IA), sebacic acid (SA), 1,10-decanediamine (DD), and 1,4-butanediamine (BD).
Plus, the itaconic acid used to produce the copolymer is a renewable resource.
In this study, an attempt has been made to synthesis a pH responsive and temperature responsive (both characteristic being present in one) smart hydrogel by using copolymers made from acrylamide (AAm) as nonionic monomer; and an anionic monomer; itaconic acid (IA).
MSA was produced from catalytic hydrogenation of itaconic acid which is renewable product.