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Issue 6, 2010
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Solution, thermal and optical properties of new poly(pyridinium salt)s derived from bisquinoline diamines

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Abstract

Several novel poly(pyridinium salt)s with heterocyclic bisquinoline moieties having both tosylate and triflimide counterions were prepared by either ring-transmutation or metathesis reaction. Their chemical structures were established by using 1H and 13C NMR, FTIR and elemental analysis. Their number-average molecular weights (Mn) ranged from 53,000 to 79,000 and their polydispersities ranged from 1.30 to 3.24 as determined by gel permeation chromatography. They had excellent thermal stabilities in the temperature range of 336–447 °C and glass transition temperatures in the range of 119–174 °C. They had good solubilities in common organic solvents and in several cases their critical concentrations (*C) were exceeded to form lyotropic liquid-crystalline phases. Additionally, they emitted light in the blue and green region in both solution and solid state. Their quantum yields were also determined by using a spectrofluorometer.

Graphical abstract: Solution, thermal and optical properties of new poly(pyridinium salt)s derived from bisquinoline diamines

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Publication details

The article was received on 05 Feb 2010, accepted on 09 Apr 2010 and first published on 06 May 2010


Article type: Paper
DOI: 10.1039/C0PY00037J
Citation: Polym. Chem., 2010,1, 908-915
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    Solution, thermal and optical properties of new poly(pyridinium salt)s derived from bisquinoline diamines

    A. K. Nedeltchev, H. Han and P. K. Bhowmik, Polym. Chem., 2010, 1, 908
    DOI: 10.1039/C0PY00037J

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