Surface characterization and liquid crystal alignment behavior of comb-like poly(oxyethylene)/poly(3-hexylthiophene) blend films

Eun-Ho Sohn; Sung Hyun Kim; Mongryong Lee; Kigook Song

doi:10.1016/j.jcis.2011.09.063

Surface characterization and liquid crystal alignment behavior of comb-like poly(oxyethylene)/poly(3-hexylthiophene) blend films

J Colloid Interface Sci. 2012 Feb 15;368(1):310-8. doi: 10.1016/j.jcis.2011.09.063. Epub 2011 Nov 9.

Authors

Eun-Ho Sohn¹, Sung Hyun Kim, Mongryong Lee, Kigook Song

Affiliation

¹ Materials Research Center for Information Display, Kyung Hee University, Yongin, Gyeonggi-do 446-701, Republic of Korea.

PMID: 22153278
DOI: 10.1016/j.jcis.2011.09.063

Abstract

The blend surfaces of poly[oxy(n-decylsulfonylmethyl)ethylene] (CH(3)-10SE) and poly (3-hexylthiophene) (P3HT) with different weight ratios were prepared by spin coating the polymer solution mixtures. In this study, their surface properties such as surface morphology, chemical composition, molecular structure, and wettability were systematically studied and correlated with liquid crystal (LC) alignment behaviors on the blend films. Therefore, we found that CH(3)-10SE part with a well-ordered side chain structure predominantly affects the both of wettability and LC alignment behavior of the blend films while there was no clear association between the wettability and the LC alignment behavior.