Characterization of grafting properties of ABS latexes: ATR-FTIR vs NMR spectroscopy

Acrylonitrile–Butadiene–Styrene (ABS) polymers have a complex microstructure which is formed during the grafting reaction of polybutadiene seed latex. During reaction, some styrene-acrylonitrile (SAN) chains are grafted onto (PB) backbone chains, and this critical to achieve effective dispersion compatibility both phases. Therefore, accurate characterization properties helps understanding polymerization mechanism as well final ABS polymer its applications properties. In work, latexes were determined by separation soluble insoluble phase polymer, followed these phases using analytical techniques. Phase was carried out dispersing latex in acetone ultracentrifugation. The for first time analysed NMR spectroscopy obtain corresponding fractions SAN PB each phase. fraction liquid-state 1H Nuclear Magnetic Resonance (NMR) spectroscopy, whereas solid-state 13C spectroscopy. Moreover, Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR), results obtained compared discussed article. We found that most achieved analysing composition