Deformation and durability control of microcapsules for electrophoretic display system

Ye Jin Kim, Junkyung Kim, Sang Soo Lee, Woo Nyon Kim, Mi Sun Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Microcapsules of durability and deformability along with excellent transparency, which was designed for the application of electrophoretic display system, have been synthesized. Microcapsules were synthesized by two-step condensation polymerization using melamine-formaldehyde (MF) resin. In this work, durability and flexibility of MF microcapsules activated by acid catalyst were characterized by compression test accompanied by visual inspection. Microcapsules of MF-AA (using acetic acid as acid catalyst) were rapidly ruptured at force 0.8 mN, while those of MF-MA (using maleic anhydride as acid catalyst) were highly deformed to show a permanent failure at 3.8 mN. Furthermore MF-MA microcapsule showed extremely higher deformation ratio than MF-AA, implying that the maleic anhydride activated system would be much more durable and flexible than the MF system employing AA.

Original languageEnglish
Pages (from-to)215/[495]-220/[500]
JournalMolecular Crystals and Liquid Crystals
Issue number1
Publication statusPublished - 2006 Dec 1

Bibliographical note

Funding Information:
The authors acknowledge support from the National Science Foundation Graduate Research Fellowship Program (R.R., H.W.S.), a Stanford Graduate Fellowship (I.N.Z.), Stanford ChEM-H Postdocs at the Interface Seed Grant Award (R.J.H.), NIH/NIDDK 5T32DK007056-44 (E.A.P.), Stanford ChEM-H Physician Scientist Research Fellowship (E.A.P.), NIH/NIAID 1R01AI13219101 (J.S.G.), USAMRAA DOD W81XWH1810647 (J.S.G.), Harrington Scholar Innovator Grant (J.S.G.), Open Philanthropy (J.S.G.), and National Institutes of Health grant MIRA R35 GM122579 (R.D.). We would like to thank Andrew M. Watkins for updates to the RiboDraw software for rendering secondary structures and Dr. Paul Gardner for providing rapid reviews of the initial preprint of this manuscript on bioRxiv.


  • Deformation
  • Durability
  • Electrophoretic display system
  • Melamine- formaldehyde
  • Microcapsule

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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