Wetting transition in cylindrical alumina nanopores with polymer melts

Mingfu Zhang, Priyanka Dobriyal, Jiun-Tai Chen, Thomas P. Russell*, Jessica Olmo, Aurora Merry

*Corresponding author for this work

Research output: Contribution to journalArticle

211 Scopus citations

Abstract

We report a systematic study of the wetting of cylindrical alumina nanopores with polystyrene melts. A transition from partial to complete wetting was observed with increasing annealing temperature, resulting in the formation of very different one-dimensional polymeric nanostructures (nanorods and nanotubes) within cylindrical alumina nanopores. The wetting transition temperature is dependent on the polymer molecular weight. The large difference in the wetting rate between partial and complete wetting was successfully used to fractionate polymers with different molecular weights.

Original languageEnglish
Pages (from-to)1075-1079
Number of pages5
JournalNano Letters
Volume6
Issue number5
DOIs
StatePublished - 1 May 2006

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    Zhang, M., Dobriyal, P., Chen, J-T., Russell, T. P., Olmo, J., & Merry, A. (2006). Wetting transition in cylindrical alumina nanopores with polymer melts. Nano Letters, 6(5), 1075-1079. https://doi.org/10.1021/nl060407n