Correlation length and amplitude scaling in critical polymer solutions
نویسندگان
چکیده
We present a light scattering measurement of the correlation length for a series of critical solutions of polystyrene in methylcyclohexane with different molecular weights. Our results show that the correlation length j;Nne, where N is the polymerization index and e5(T2Tc)/Tc is the reduced temperature. The N exponent zn is found to be 0.1860.02, which is contrary to most earlier direct experimental results but in excellent agreement with theoretical predictions by de Gennes and Stepanow. © 1999 American Institute of Physics. @S0021-9606~99!51142-2#
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