مرکز منطقه ای اطلاع رساني علوم و فناوري -

چكيده لاتين :

The homopolymer of glycidyl methacrylate (GMA) and its random copolymers with 2-ethyl hexyl acrylate (EHA) and isoprene (IP) were synthesized under vacuum using azobis (isobutyronitrile) (AIBN) as initiator at 70±1DC. Tris(trimethylsilyl)methyl group (trisyl= Tsi) was then covalently attached to the obtained homopolymer and copolymers as side chain. The polymers were characterized by 1H NMR, IR, differential scanning calorimetry (DSC), and gel permeation chromatography (GPC). In the case of poly(GMA) modification, limitation in conversion is observed and it has been attributed to the steric hindering effect of the previously grafted moieties. This modification increases the rigidity of polymers and, subsequently, their glass transition temperature as shown by DSC and DMTA analyses. The results show that, with the incorporation of the tris(trimethylsilyl)methyl group in the polymer side chains, a series of novel modified polymer containing new properties are obtained, that can find some applications in polymer industry.