(9-Ethyl-carbazol-6-yl) methyl methacrylate/methyl acrylate (E/A) copolymers of different compositions were prepared by solution polymerization by varying the molar infeed ratio, using AIBN as initiator at 60 degrees C. The reactivity ratios calculated by Kelen-Tuclos (KT) method were found to be r(E) = 1.16 +/- 0.02 and r(A) = 0.69 +/- 0.01 whereas those calculated from RREVM method were found to be r(E) = 1.18 and r(A) = 0.68. The molecular weights (M-w) and polydispersity index (PDI, M-w/M-n) were determined using gel permeation chromatography (GPC). Glass transition temperatures (T-g) for different compositions of E/A copolymers were determined using differential scanning calorimetry (DSC). Copolymer molar outfeed ratio (F-E) was calculated from H-1 NMR spectra. The alpha-methyl, methine, backbone methylene, and quaternary carbon resonance signals of the copolymers were distinguished using C-13{H-1}, DEPT-45, -90, and -135 NMR techniques. The alpha-methyl and beta-methylene showed compositional and configurational sensitivity up to pentad and tetrad level, respectively, whereas methine showed only compositional sensitivity up to pentad level. Unambiguous assignments for H-1 and C-13{H-1} NMR spectra were done by correlating 1D (H-1, C-13{H-1}, DEPT) and 2D (HSQC, TOCSY) NMR data. The spectral assignments for carbonyl region were done by studying higher bond order couplings by heteronuclear multibond correlation (HMBC) spectra. (c) 2006 Wiley Periodicals, Inc.