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Preparation and properties of phenolated phenanthrene-formaldehyde resins |
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| Authors: | Lesley D. Herbert J. Gordon Robinson George Marr |
| Abstract: | Phenanthrene-formaldehyde resins of different oxygen content were reacted with phenol 110°C in the presence of a strong acid catalyst. Cleavage occurred at the dimethylene ether and acetal bridges joining the aromatic nuclei with the concomitant formation of phenanthrene-formaldehyde-phenol resins. These resins were characterised by gel permeation chromatography, 1H n.m.r. and infrared spectroscopy. |
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