Synthesis of the hydroxyethyl‐substituted poly( para ‐phenylene) 2b employing Suzuki polycondensation is described. This PPP derivative is used as a matrix for the attachment of first‐ and second‐generation dendrons of the Fréchet‐type with isocyanate functions at the focal point. The degree of coverage is determined from NMR integration to be virtually 100% in both cases.
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Karakaya et al. (1996) studied this question.