SPECTROSCOPIC METHODS FOR STUDYING THE CO MPOSITION OF STYRENE COPOLYMERS WITH ALLYLIC MONOMERS

UV, IR, and H-1 NMR spectroscopies were used to study binary copolymer s of styrene with diethyleneglycol-bis-allyl carbonate and diallyl pht haliate. The contents of the units of diethyleneglycol-bis-allyl carbo nate and diallyl phthalate in the copolymer were determined from integ rated intensity of the absorption band at 1750 cm(-1), integrated inte nsity of the absorption band at 1730 cm(-1) and the intensity of the a bsorption band at 284 nm, respectively. The content of styrene in the copolymer was assessed from the absorbance for the absorption band at 269 nm. The proposed combination of IR and UV spectroscopies permits t he high-precision determination of both components of the copolymer. T he molar absorption coefficients for all components are reported.