Self-assembled patterns obtained with evaporated polymer solutions and pre-stretched polymer substrates

Edward Bormashenko, Albina Musin, Roman Pogreb, Yelena Bormashenko, Oleg Gendelman

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We report patterns comprising non-spherical microscopic pores obtained under dewetting of polymer solutions of chlorinated solvents and amorphous polymers deposited on the pre-stretched polyethylene substrates. Patterns on meso- and microscopic scales were observed. Mesoscopically scaled pattern is practically insensitive to the mechanical strain, whereas small scale microscopic voids were highly deformed, and demonstrated the average eccentricity as high as 0.25. Introduction of PEG and RTV polyorganosiloxanes/silanes destroyed the large scale pattern, thus honeycomb pattern comprising non-spherical microscopic pores has been obtained. The patterns demonstrate a potential for polymer ferroelectret applications.

Original languageEnglish
Pages (from-to)253-256
Number of pages4
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume303
Issue number3
DOIs
StatePublished - 15 Aug 2007

Keywords

  • Anisotropic pores
  • Dewetting
  • Polymer solution
  • Pre-stretched substrate
  • Two-fold pattern

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