A Theoretical Study on Structure and Properties of Itaconic Anhydride;

By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride.

A new process of synthesizing itaconic anhydride by catalytically dehydration was studied A kind of catalyst with high activity and high selectivity was obtained The influence of reaction conditions on reaction results was examined Under the optimum conditions, the yield is over 87 5% and the product purity is over 99 3%.

By using cadmium acetate as catalyst, polyitaconic anhydride was prepared through ring opening polymerization of itaconic anhydride.

Using citraconic anhydride and hydrazin dihydrochloride as base materials,through three steps 3,6-dichloro-4-pyridazinecarboxylic acid was synthesized.

The synthesis of 3-chloro-5-methylpyridazine,an important intermediate of pesticides and anti-viral drugs,was realized and manufactured from citraconic anhydride via four steps,including chlorination reaction,substitution reaction,and oxidation reaction.

Constuction of commercial strain producing itaconic acid from raw starch by protoplast fusion;

Graft copolymerization of itaconic acid/acrylic acid monomer mixture onto poly(ethylene terephthalate) fabric;

Synthesis of itaconic acid-sodium acrysulfonate copolymer;

Acrylonitrile (AN) and ammonium salt of itaconic acid [(NH4)2IA] were polymerized in aqueous deposited polymerization systems to synthesize high molecular weight AN/(NH4)2IA copolymers, which were initiated by ammonium persulphate [(NH4)2S2O8] .

Acrylonitrile(AN) and ammonium salt of itaconic acid [(NH4)2IA] were polymerized in aqueous deposited polymerization systems to synthesize high molecular mass polyacrylonitrile(PAN),which were initiated by ammonium persulphate [(NH4)2S2O8].