Polymer Science Faculty Research
Title
Template-Induced Enhanced Ordering Under Confinement
Document Type
Article
Publication Date
Fall 2005
Abstract
We report a surprisingly strong ordering of Si-(CH(3))(2) groups upon confinement between two surfaces, an oxidized poly(dimethyl siloxane) (PDMS(ox)) elastomer and a methyl-terminated self-assembled monolayer (octadecyltrichlorosilane (OTS)) on sapphire substrates. This enhanced ordering is induced by the template of ordered methyl groups of OTS and is not observed for other surfaces (fluorinated monolayers and sapphire substrates). This strong ordering is reminiscent of layering observed for confined symmetric molecules between two mica surfaces but was expected to vanish between rough macroscopic surfaces. These results provide new insights on confined structure at the interface between two solids and are important in the understanding of surface-controlled processes of practical importance.
Publication Title
Langmuir
Volume
21
First Page
10316
Last Page
10319
Recommended Citation
Yurdumakan, Betul; Harp, Gary P.; Tsige, Mesfin; and Dhinojwala, Ali, "Template-Induced Enhanced Ordering Under Confinement" (2005). Polymer Science Faculty Research. 52.
https://ideaexchange.uakron.edu/polymerscience_ideas/52