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S. N. Hardrict, R. Gurarslan, C. J. Galvin, H. Gracz, D. Roy, B. S. Sumerlin, J. Genzer and A. E. Tonelli Characterizing polymer macrostructures by identifying and locating microstructures along their chains with the kerr effect Journal of Polymer Science Part B: Polymer Physics 51

Article first published online: 29 JAN 2013 | DOI: 10.1002/polb.23248

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The electrical birefringence, or Kerr effect, contributed by polymer solutes to their dilute solutions is sensitive enough to determine their macrostructures. Using specially designed styrene/p-bromostyrene copolymers, it is observed that their molar Kerr constants are not only sensitive to the types and amounts of their constituent microstructures but also to their locations along the copolymer chains. Comparison of molar Kerr constants calculated for a variety of macrostructures to those observed permitted, forthe first time, identification of the appropriate macrostructures.

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