Characterization of novolac resins based on p-tert-butylphenol by PMR spectroscopy

The direct silylation of tert-butylphenol formaldehyde resins with N,O-bis(trimethylsily)acetamide (BSA) has allowed a more complete analysis of these resins to be made with proton magnetic resonance (PMR) spectrometry. A quantitative determination of mixtures of the monomer, dimer, trimer, and tetramer may be carried out at 100 MHz.