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Fabrication of Polymeric Capsules Enclosing Eletrophoretic Particle Dispersion

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Abstract

Poly(urea-formaldehyde) capsules enclosing electrophoretic particle dispersion were formed by carrying out an in-situ polymerization reaction in an oil-in-water emulsion. The internal dispersion was composed of pigment particles Yellow-14 modified by charge control agent to have superior electrophoresis velocity and the mixture of tetrachloroethylene and sec-butylbenzene, using Span 80 as the stabilizer and emulsifier. FE-SEM, TEM, and optical microscope (OM) were performed to investigate on the capsule size and surface morphology. Contact angle measurements showed that UF prepolymer deposited at the o/w interface to form hollow capsules only when the interfacial tension is large enough.

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Authors and Affiliations

  1. Department of Chemistry, Pukyong National University, 599-1 Daeyeon-3-dong, Namgu, Pusan, 608-737, Korea, Republic of

    Ru Qiao, **ao Li Zhang, Ri Qiu, Yan Li & Young Soo Kang

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  1. Ru Qiao
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  2. **ao Li Zhang
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  3. Ri Qiu
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  4. Yan Li
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  5. Young Soo Kang
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Qiao, R., Zhang, X.L., Qiu, R. et al. Fabrication of Polymeric Capsules Enclosing Eletrophoretic Particle Dispersion. MRS Online Proceedings Library 949, 203 (2006). https://doi.org/10.1557/PROC-0949-C02-03

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  • DOI: https://doi.org/10.1557/PROC-0949-C02-03

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