Determination of monomer reactivity ratios of poly (acrylonitrile–co–vinylacetate)‎

الملخص EN

Copolymers of Acrylonitrile (AN) and Vinyl Acetate (VAc) were synthesized in dimethyl formamide (DMF) using benzoyl peroxide (BPO) as initiator at 75oC.

The copolymers were analyzed by IR spectroscopy.

The monomer reactivity ratios were determined by the methods of Fineman–Ross (F-R) and Kelen–T2dÖs (K-T) giving the results shown in the following table :- r1(AN) r2(VAc) F-R K-T F-R K-T 1st 2nd 1st 2nd 1st 2nd 1st 2nd 2.2347 2.5341 2.3889 2.3889 0.0303 0.002 0.1038 0.1038