Phys. Rev. Lett. 63, 616–619 (1989)Interfacial structure in polymer mixtures below the critical pointReceived 20 March 1989; published in the issue dated 7 August 1989 The interfacial composition profile bwtween two polymer phases at temperatures below the upper critical solution point has been measured directly, using an ion-beam method based on nuclear reaction analysis. The interface width grows with time to a finite limiting value. The variation of the limiting interfacial width as the critical temperature is approached from below is in quantitative accord with mean-field theories. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.63.616
DOI:
10.1103/PhysRevLett.63.616
PACS:
61.16.Fk, 68.10.-m, 68.35.Fx
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