Solution Properties of Star-Shaped Polystyrenes Having Peripheral Charged Ions

Author： Ishizu K.   Kitano H.  

Publisher： Academic Press

ISSN： 0021-9797

Source： Journal of Colloid and Interface Science, Vol.229, Iss.1, 2000-09, pp. : 165-167

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Abstract

Functionalized polystyrene stars were prepared by copolymerization of polystyryl lithium with divinylbenzene in a mixture of benzene/tetrahydropyran, where the polystyrene arms were prepared by anionic polymerization using [2-[(N,N-dimethylamino)-methyl]phenyl]lithium as the initiator. These functional stars were converted by quaternization with methyl iodide into polystyrene stars having peripheral positive charges. We studied the charge effects on the solution properties of such stars. The hydrodynamic dimension of peripheral charged polystyrene (PS) stars depended strongly on the solubility parameter between PS segments and solvent.

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