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The copolymerization of acrylamide (AAm) with monomethoxyethyl itaconate (IME) and dimethoxyethyl itaconate (IDE) was studied, using various molar relations AAm/itaconate. The polymerization reactions were carried out both in bulk and in solution, using 2,2´- azobisisobutyronitrile and ammonium persulfate respectively as initiators. The copolymers obtained were soluble in water and these were characterized by means FTIR spectroscopy and Thermogravimetric analysis (TGA and DTGA). The copolymers AAm/IDE were obtained with high yields and they were thermally stable up to 200ºC, whereas the yields of the copolymers AAm/IME were lower and they were stable up to 150ºC. Finally, hydrogels AAm/IME and AAm/IDE were prepared using the molar relation AAm/Itaconate 80/20 with 1% of crosslinking agent. It was found that swelling of these hydrogels was higher than those obtained with AAm in the same experimental conditions.

Abstract  A series of comb like poly(p-n-alkylstyrene)s with linear alkyl groups, containing even numbers of carbon atoms from 12 up to 22 were synthesized by radical polymerization and characterized by FTIR, 1H NMR, TGA, TVA DSC, and WAXS. All polymers were obtained in good yields and were soluble in organic solvents as chloroform, dichloromethane or tetrahydrofuran and insoluble in methanol; they are stable up to temperatures near 300 °C. On the other hand, the alkylic side chains of all series are able to crystallize in a paraffinic phase in which the melting temperature and enthalpy increase with the methylene number of the n-alkyl chain. [ABSTRACT FROM AUTHOR]

A series of complexes from poly(itaconic acid) and poly(mono methyl itaconate) and bromide surfactants with linear alkyl groups, containing even number of carbon atoms from 12 up to 22 were synthesized. The complexes were obtained in good yields and were soluble in organic solvents and stable up to temperatures near 150°C. On the other hand, the paraffinic side chains are able to crystallize depending on the methylene number of the surfactantn-alkyl chain. [ABSTRACT FROM AUTHOR]