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Communication: Self-assembly of semiflexible-flexible block copolymers

Authors :
Venkat Ganesan
N. Arun Kumar
Source :
The Journal of Chemical Physics. 136:101101
Publication Year :
2012
Publisher :
AIP Publishing, 2012.

Abstract

We apply the methodology of self-consistent Brownian dynamics simulations to study the self-assembly behavior in melts of semiflexible-flexible diblock copolymers as a function of the persistence length of the semiflexible block. Our results reveal a novel progression of morphologies in transitioning from the case of flexible-coil to rod-coil copolymers. At even moderate persistence lengths, the morphologies in the semiflexible-block rich region of the phase diagram transform to liquid crystalline phases. In contrast, the phases in the flexible-block rich region of the phase diagram persist up to much larger persistence lengths. Our analysis suggests that the development of orientational order in the semiflexible block to be a critical factor influencing the morphologies of self-assembly.

Details

ISSN :
10897690 and 00219606
Volume :
136
Database :
OpenAIRE
Journal :
The Journal of Chemical Physics
Accession number :
edsair.doi...........0e0a4e247ed870854bc3a2d64174242d
Full Text :
https://doi.org/10.1063/1.3692601