Melt grafting copolymerization of glycidyl methacrylate onto acrylonitrile-butadiene-styrene (ABS) terpolymer

Abstract

The grafting copolymerization of glycidyl methacrylate (GMA) onto acrylonitrile-butadiene-styrene (ABS) terpolymer was carried out using the melt grafting process. Infrared (IR) spectra, 1 H nuclear magnetic resonance spectra, and elemental analysis results confirmed that GMA was successfully grafted onto the ABS backbone. The grafting occurred at the butadiene region of ABS, and a reaction mechanism has been proposed. The influencing factors of the reaction, such as GMA concentration, the initiator content, and the presence of GMA carrier and comonomer on the grafting copolymerization, were also studied. Results indicated that the preparation of ABSg-GMA can be carried out by melt extrusion in the presence of a GMA carrier, and a high grafting degree can be obtained when the grafting process is carried out in the presence of styrene.

Improved mechanical and rheological properties of recycled polyethylene by acrylic acid-assisted melt grafting of glycidyl methacrylate

“…Liu et al studied the mechanical properties of blends have been improved by adding elastomers to polyolefins, the study has shown that mechanically mixed recycled polyethylene and polypropylene blends with subsequent elastomers addition display improved mechanical properties, but the amount of elastomer is very large, resulting in appearing a morphology of clear phase separation [11,12]. For another method, free-radical melt grafting of polyolefins has also been studied [13][14][15][16][17][18]. Many studies use maleic anhydride (MAH), silane, glycidyl methacrylate (GMA) and styrene (St) as grafting monomer because of the strong reactivity of the group of them.…”