Summary
Individual polystyrene (PS) and polyacrylonitrile (PAN) solutions in N,N-dimethylformamide (DMF) were studied by electronic absorption spectroscopy. Upon increasing the polymer concentration in the PS-DMF binary system a bathochromic shift of the band at about 260 nm was found. This spectral effect could be explained by an association of PS phenyl groups and/or by a complex formation between DMF and PS. The UV spectrum of PAN in DMF solution was interpreted in terms of the variety of possible donor-acceptor complex formations. The specific intermolecular interactions in the investigated binary liquid systems were discussed on the basis of the spectral data.
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Received: 9 March 1998/Revised version: 9 June 1998/Accepted: 10 June 1998
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Gantchev, B., Mihailov, M. Electronic absorption spectroscopy of liquid systems containing polystyrene and polyacrylonitrile 1. Individual polymer solutions. Polymer Bulletin 41, 207–213 (1998). https://doi.org/10.1007/s002890050353
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DOI: https://doi.org/10.1007/s002890050353