Diblock copolymer films: free-energy analysis

W.A.m Morgado, S Martins, M Bahiana and M.S.o Massunaga

Physica A: Statistical Mechanics and its Applications, 2000, vol. 283, issue 1, 208-211

Abstract: The formation of the lamellar pattern in thin films of even diblock copolymers confined by hard walls is studied. The analysis of the free energy of a film with lamellae parallel to the confining walls, in the weak segregation regime, indicates that, for a given molecular size, the number of lamellae formed is fixed. The transition from a state from n to n+1 lamellae, as the film thickness is increased, is discontinous and there is a range of values of film thickness where the formation of parallel lamellae is disfavorable.

Keywords: Frustration; Diblock copolymers; Conmesurability (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:283:y:2000:i:1:p:208-211

DOI: 10.1016/S0378-4371(00)00154-0

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