Polymerization of itaconic acid in aqueous solution: Structure of the polymer and polymerization kinetics at 25°C, studied by 13 C NMR Evangelia Grespos Department of Chemistry, University of Queensland, Brisbane, Australia 4067 Polyacrylonitrile (PAN) based fibers remains one of the best materials for making carbon fibers , , .Since PAN homopolymer results in poorer quality of the carbon fibers, it is modified to improve its properties by incorporation of suitable acidic co-monomer like itaconic acid (IA) during polymerization, which has been a subject of study in some previous works , , .
Textile Research Journal 2000 , 70 (4) , 359-362. Introduction. Polymers of itaconic acid are formed at high conversion by an aqueous polymerization process of partially neutralized monomer solution, water, polyvalent metal ion and initiator. In all the experiments distilled water was used. Polycarboxylic acids have been used as crosslinking agents for cellulosic materials to replace traditional formaldehyde-based reagents.
Itaconic acid is a renewable chemical produced at large commercial scale by fermentation of carbohydrates such as corn based dextrose or cane and beat sucrose. Itaconic acid, or methylidenesuccinic acid, is an organic compound.This dicarboxylic acid is a white solid that is soluble in water, ethanol, and acetone. Addition of TEA helped overcome the retardation at enhanced concentrations of IA in the feed. Potassium hydroxide, absolute ethanol, glacial acetic acid and phosphoric acid (85%) were obtained from POCH (Poland).
Characterization of pH-Responsive Hydrogels of Poly(Itaconic acid-g-Ethylene Glycol) Prepared by UV-Initiated Free Radical Polymerization as Biomaterials for Oral Delivery of Bioactive Agents Tania Betancourt , 1 Juan Pardo , 2 Ken Soo , 2 and Nicholas A. Peppas 1, 2, 3, *
Itaconic anhydride (ITA) and stearyl methacrylate (SM) are other monomers obtained from renewable resources. 1. Itaconic acid, a renewable feedstock obtained by fermentation of carbohydrates, is used as a key substrate to produce aliphatic unsaturated polyesters as well as polynorbornenes.
3.2.1 Chemical structure of itaconic acid during polymerization 48 3.2.2 The effect of citraconic acid on polymerization process of itaconic acid 51 Chapter IV 58 SYNTHESIS AND CHARACTERIZATION OF ITACONIC SUPERABSORBENTS 58 4.1 Commercial superabsorbent 58 4.2 Crosslinked Gel by cation 59 Historically, itaconic acid was obtained by the distillation of citric acid, but currently it is produced by fermentation.The name itaconic acid was devised as an anagram of aconitic acid, another derivative of citric acid. Yet its polymerization was identified as a key barrier to commercial development. ITA is produced from the pyrolysis of citric acid or through the fermentation of carbohydrates forming itaconic acid followed by its dehydration to form the anhydride , and SM is derived from renewable plant oils [4–6].
In-situ Polymerization of Maleic Acid and Itaconic Acid on Cotton: MALDI/TOF Mass Spectroscopy and Light-Scattering Study. In a 2004 report to the Office of Biomass Program (DOE-EERE), Itaconic acid was identified as one of the top 12 value added chemicals from biomass.
Renewable unsaturated polyesters were prepared by direct polycondensation of dimethyl itaconate (DMI) with diols, whereas the ring-opening-metathesis polymerization (ROMP) of a DMI derived norbornene led to … Polymerization of itaconic acid in aqueous solution: Structure of the polymer and polymerization kinetics at 25°C, studied by 13 C NMR Evangelia Grespos Department of Chemistry, University of Queensland, Brisbane, Australia 4067 The literature reports that maleic acid (MA) and itaconic acid (ITA) can copolymerize on cotton fabric in the presence of potassium persulfate, and esterification of cotton by the copolymer imparts wrinkle resistance to the treated cotton fabric.
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