graft copolymer


The paper presents the results of the study of copolymerization of 2-hydroxyethylmethacrylate (HEMA) with polyvinylpyrrolidone (PVP) under the action of two-component initiation systems of iron (II) sulfate/radical type initiator. The influence of the nature of the radical initiator (In) in the FeSO4/In system on the behavior of the polymerization of HEMA/PVP compositions, structural parameters of the polymer matrix network and properties of hydrogels based on pHEMA-gr-PVP copolymers were established.

Investigation of the kinetics of graft polymerization in a thin layer of 2-hydroxiethyl methacrylate with polyvinylpyrrolidone

The kinetics of polymerization of 2-hydroxyethyl methacrylate with polyvinylpyrrolidone in a thin layer were studied. The dependences of the conversion for polymerization HEMA with PVP in mass and in solvent were determined. (Co)polymerization exotherms for the reaction in mass were calculated. The reaction order by initiator, monomer and polymer was determined and the mathematical dependence of the total rate of grafted copolymerization of HEMA to PVP was calculated.

Structural, thermal and morphological characterization of UV-graft polymerization of acrylated-epoxidized soybean oil onto goat leather

Graft of acrylated-epoxidized soybean oil onto goat leather was achieved using UV-radiation. Graft percentage, structural, morphological and thermal characterizations are discussed in terms of: morphology of the leather grafted face and the UV-radiation dosage. The obtained results are of importance since an environmental friendly monomer could be used to change or improve some properties of leather articles.