Determination of Acrylonitrile/Methylmethacryiate Copolymer Composition by Infrared Spectroscopy Kieran I. Ekpenyong and R. 0. Okonkwo University of Jos, Nigeria
Many polymeric materials of natural and synthetic origin are of considerable importance because of their applicability t o a wide variety of purposes. Copolymerization is one of several techniques used in the preparation of polymers of desired physico-chemical properties. Thus a hard polymer such a s wolvmethvlmethacrvlate can he made softer throueh
absorbance against weight (in milligrams) of AN in pellet was prepared (Beer's law, (21, ( 3 ) ) .Pellets of copolymer of appropriate weights were similarly prepared, their IR absorbance measured, and AN composition in copolymer read from the plot. MMA composition was obtained by difference between total weight of copolymer used and the weight of AN ohtained from the calibration ploL. Results and Discussion
.
.
name orlon, a medium strength fibepthat is dye-resistant and is quite often blended with nylon to produce wool-like synthetic fiber. Thus, copolymerization of AN with MMA essentially achieves a blend of AN and MMA homowolvmer . . p r o l w r f ~ c isn 4 d t > i r ~ ~ dIirt~~.tioti. S ~ w r td~t ila l y t i ~ am l < ~ h , dtire s ~IVJII~IIIIC i t 8 r!INJettrminaticni oiwpuIvmt,r ,.tmip~Atizm! I I. 'h., IIC,I
