K. Lenghaus, G. Qiao, D. Solomon
Aug 1, 2001
Citations
0
Influential Citations
9
Citations
Journal
Polymer
Abstract
Abstract Novel model compounds based on 3,5-dimethylphenol were used to determine the structure of graphitisable 3,5-dimethylphenol resins. The base catalysed reaction of 3,5-dimethylphenol with formaldehyde was found to give a solid, which CP-MAS 13 C NMR showed to have a predominately linear structure, highly condensed but with few crosslinks. Model studies showed that the 3,5-dimethylphenol material was readily able to form xanthene type structures, unlike phenol derived material. The presence of xanthene structures can account for the unusual properties of 3,5-dimethylphenol derived resins, including oxygen sensitivity and graphitisability.