Abstract

Chemical modification of glycidyl methacrylate copolymers with oximes containing pyridine groups

Author(s): Sahar Sattarzadeh and Hassan Golipour

In this work the homopolymer and copolymers of glycidyl methacrylate (GMA) with methyl methacrylate (MMA), ethylmethacrylate (EMA), methylacrylate (MA) and ethylacrylate (EA) were synthesized by free radical polymerization using azobis (isobutyronitrile) (AIBN) as initiator at 70 ±10C. Then, copolymers of glycidyl methacrylate have been modified by incorporation of highly sterically hindered demanding 2-pyridinecarbaldehyde oxime through the ring opening reaction of the epoxy groups. The polymers were characterized by 1H-NMR and FT-IR. Presence of bulk the 2-pyridinecarbaldehyde oxime groups in polymer side chains leads to an increase in the rigidity and glass transition temperature of polymer as shown by DMTA analysis. The metal ion uptake by the functional groups of membranes was determined by the use of atomic absorption (AA) and SEM-EDAX and X-Ray Mapping techniques. The research demonstrated that the synthesized modified polymer could successfully remove heavy metals from solution. With the incorporation of the 2-pyridinecarbaldehyde oxime groups in the polymer side chains, a series of novel modified polymer containing new properties are obtained, that can find some applications in polymer industry.

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