Preparation and application of monodisperse spherical polymethylsilsesquioxane (PMSQ) beads by sol-gel method

Franklin Chau Nan Hong, Cyun Jhe Yan

Research output: Contribution to journalArticlepeer-review

Abstract

We have prepared monodisperse polymethylsilsesquioxane (PMSQ) microspheres with the diameters of 0.5–4 μm in aqueous solution by a sol-gel method. The as-prepared PMSQ beads are modified with hexamethyldisiloxane (HMDSO) under highly acidic conditions to form hydrophobic trimethylsilylated spheres. A continuous lift-up method was developed to perform monolayer self-assembly ordered arrays of the hydrophobic PMSQ microspheres on the large area substrate (>14 cm in length). We further reported a novel patterning method to control the sizes and the pitches of the arrayed microscale patterns independently. The technology to fabricate the large area arrayed microstructures may find applications in the manufacture of flexible micro-devices.

Original languageEnglish
Pages (from-to)1632-1639
Number of pages8
JournalAdvanced Powder Technology
Volume29
Issue number7
DOIs
Publication statusPublished - 2018 Jul

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanics of Materials

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