Hydrophobic nanopatterning on a flexible gas barrier film by using a poly(dimethylsiloxane) elastomer

Jin Hwan Choi, Young Min Kim, Young Wook Park, Tae Hyun Park, Ki Young Dong, Byeong Kwon Ju

Research output: Contribution to journalArticle

8 Citations (Scopus)


In this work, we fabricated a hydrophobic and transparent gas barrier film via a nanopatterned poly(dimethylsiloxane) elastomer imprinting on an ultraviolet-curable polymer resin. A Ca degradation method (water permeation rate) and surface energy measurements were used to determine the level of modification of the surface characteristics. As a result, the decreased surface energy from 25.8 to 7.29mNm-1 led to a lower water vapor transmission rate from 3.06 × 10-1to6.24 × 10-2gm -2day-1 according to the degree of decreased Ca height from 100nm. A tunable wettability is beneficial for application where controlling the direction of moisture flow is important, such as in flexible organic electronics.

Original languageEnglish
Article number135303
Issue number13
Publication statusPublished - 2009 May 12


ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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