Mesoscopic simulation of the self-organization of a binary mixture of copolymers in the vicinity of a selective adsorbing surface
Polymer Science - Series A, ISSN: 0965-545X, Vol: 52, Issue: 1, Page: 94-110
2010
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Article Description
A new strategy for the construction of ultrathin structured films with cylindrical microdomains oriented primarily perpendicularly to the surface of a solid substrate is proposed. This approach is based on the phase separation of a binary mixture of incompatible compositionally asymmetric block copolymers, microphase separation of their blocks, and selective adsorption of one of the copolymers on the surface. Preferentially adsorbed copolymer forms a regular pattern on the surface, which serves as an orienting support for another component that dominates in the system and forms the hexagonal mesophase in the bulk of the film. This approach has been verified by the mesoscopic simulation based on the dynamic version of the density functional theory. As a result of the self-organization of macromolecules, the morphology with perpendicularly oriented domains can be thermodynamically stable for the films with a thickness of ∼100 nm. The commensurability of the parameters of the surface pattern and volume mesophase is shown to be the key factor controlling the orientation of cylindrical microdomains. © 2010 Pleiades Publishing, Ltd.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=76449099476&origin=inward; http://dx.doi.org/10.1134/s0965545x10010128; http://link.springer.com/10.1134/S0965545X10010128; http://www.springerlink.com/index/10.1134/S0965545X10010128; http://www.springerlink.com/index/pdf/10.1134/S0965545X10010128; https://dx.doi.org/10.1134/s0965545x10010128; https://link.springer.com/article/10.1134/S0965545X10010128
Pleiades Publishing Ltd
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