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Int. J. Mol. Sci. 2013, 14(2), 3254-3264; doi:10.3390/ijms14023254
Article

Structure Formation of Ultrathin PEO Films at Solid Interfaces—Complex Pattern Formation by Dewetting and Crystallization

*  and
Received: 4 January 2013; in revised form: 25 January 2013 / Accepted: 28 January 2013 / Published: 5 February 2013
(This article belongs to the Special Issue Self-Assembled Soft Matter Nanostructures at Interfaces)
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Abstract: The direct contact of ultrathin polymer films with a solid substrate may result in thin film rupture caused by dewetting. With crystallisable polymers such as polyethyleneoxide (PEO), molecular self-assembly into partial ordered lamella structures is studied as an additional source of pattern formation. Morphological features in ultrathin PEO films (thickness < 10 nm) result from an interplay between dewetting patterns and diffusion limited growth pattern of ordered lamella growing within the dewetting areas. Besides structure formation of hydrophilic PEO molecules, n-alkylterminated (hydrophobic) PEO oligomers are investigated with respect to self-organization in ultrathin films. Morphological features characteristic for pure PEO are not changed by the presence of the n-alkylgroups.
Keywords: dewetting; DLA; PEO; PEG; thin film; crystallization dewetting; DLA; PEO; PEG; thin film; crystallization
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Braun, H.-G.; Meyer, E. Structure Formation of Ultrathin PEO Films at Solid Interfaces—Complex Pattern Formation by Dewetting and Crystallization. Int. J. Mol. Sci. 2013, 14, 3254-3264.

AMA Style

Braun H-G, Meyer E. Structure Formation of Ultrathin PEO Films at Solid Interfaces—Complex Pattern Formation by Dewetting and Crystallization. International Journal of Molecular Sciences. 2013; 14(2):3254-3264.

Chicago/Turabian Style

Braun, Hans-Georg; Meyer, Evelyn. 2013. "Structure Formation of Ultrathin PEO Films at Solid Interfaces—Complex Pattern Formation by Dewetting and Crystallization." Int. J. Mol. Sci. 14, no. 2: 3254-3264.


Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert