Surface ordering of a rod-coil block molecule on the water subphase

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We investigate the surface ordering and orientation of a synthetic rigid-flexible block molecule containing a rigid penta-p-phenylene and poly(propylene oxide) flexible chains at the air-water interface. This supramolecular amphiphile self-organizes into a honeycomb-like structure in the bulk, but it behaves differently with the conventional amphiphilies at the air-water interface. Surface press it re-a rea isotherms, TEM and AFM results show that the rod-coil molecule forms a stable monolayer at the air-water surface. After monolayer collapses, the molecule exhibits island morphology with the (10) layer spacing of similar to 18 nm. From these results, we discuss the self-assembling mechanism of microphase separation between the rigid moiety and the flexible segments on the water subphase. (C) 2007 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2008-10
Language
English
Article Type
Article; Proceedings Paper
Keywords

SUPRAMOLECULAR DENDRIMERS; COPOLYMERS; COLUMNS

Citation

CURRENT APPLIED PHYSICS, v.8, no.6, pp.651 - 655

ISSN
1567-1739
URI
http://hdl.handle.net/10203/90773
Appears in Collection
NT-Journal Papers(저널논문)CBE-Journal Papers(저널논문)
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