Phys. Rev. E 55, 1728–1731 (1997)Cooperative chiral order in copolymers of chiral and achiral unitsReceived 22 August 1996; published in the issue dated February 1997 Polyisocyanates can be synthesized with chiral and achiral pendant groups distributed randomly along the chains. The overall chiral order, measured by optical activity, is strongly cooperative and depends sensitively on the concentration of chiral pendant groups. To explain this cooperative chiral order theoretically, we map the random copolymer onto the one-dimensional random-field Ising model. We show that the optical activity as a function of composition is well described by the predictions of this theory. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.55.1728
DOI:
10.1103/PhysRevE.55.1728
PACS:
36.20.-r, 61.41.+e, 05.50.+q, 78.20.Ek
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