Micro structure determination of Af-vinylcarbazole/vinyl acetate copolymers by one- and two-dimensional NMR spectroscopy
نویسندگان
چکیده
The copolymers of iV-vinylcarbazole/vinyl acetate (V/A) of different compositions were prepared by solution polymerization using AIBN as an initiator. The copolymer composition was determined from quantitative "Cf'H} NMR spectroscopy. Reactivity ratios for the comonomers were calculated using the Kelen-Tudos (KT) and non-linear error in variable (EVM) methods. Two-dimensional heteronuclear single quantum correlation (two-dimensional-HSQC) and total correlation spectroscopy (TOCS Y) spectra were used to resolve the complex 'H NMR spectra of the copolymers.
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