Abstract

Chemical shift changes in poly[2-[(3,5-dinitrobenzoyl)oxy]ethyl methacrylate] (pDNBEM) on blending with poly[(N-ethylcarbazol-9-yl)methyl methacrylate or acrylate] (pNECMM or pNECMA) suggest a close approach of the aromatic groups of pD and pA in polymer charge transfer complexes. By measuring T iρ (C) at various temperatures, its usefulness as a motional parameter in these samples was shown and it was shown that different modes of motion contribute to relaxation in the main chain and pendant groups of pDNBEM, pNECMA and pNECMM. No large changes in mobility are observed on blending, but there may be some damping of motion at the sites wwhere chemical shift changes were detected

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