Abstract
Phenolic polymers were synthesized from homogeneous, well defined starting materials by oxidation with sodium periodate. These polymers in 5–10 % solutions in 0.1 N NaOD were characterized by 13C-NMR spectrometry. The spectra of each polymer showed typical features by which they can be differentiated from one another. Clear signals due to phenolic, aromatic (olefinic) and carboxylic carbons were observed for each polymer. Carboxylic carbons were present regardless of whether the monomeric unit possessed a free carboxylic group or not. Based on this fact it is concluded that during the oxydative polymerization of o- and p-diphenolic compounds a partial dearomatization occurs.
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