Stress distributions in diblock copolymers.
Phys Rev Lett
; 99(4): 048302, 2007 Jul 27.
Article
de En
| MEDLINE
| ID: mdl-17678411
ABSTRACT
We demonstrate how a generalized self-consistent field theory for polymer melts that includes elastic stress and strain fields can be applied to the study of AB diblock copolymers melts. By obtaining the stress distributions for volume conserving strain loadings where lamellar and hexagonal morphologies are stable, we show that the local stress is reduced at the domain interface but slightly enhanced in the immediate vicinity of the interface. The overall stress profile is the result of the combined effects of chain connectivity across the interface, which yields a positive contribution, and the immiscible nature of the monomers, which leads to a stress reduction because of interfacial tension.
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Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Phys Rev Lett
Année:
2007
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique