Surface-modified hemispherical polystyrene/polybutyl methacrylate composite particles

Udi Akiva, Shlomo Margel

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Micrometer-sized polystyrene/poly(n-butyl methacrylate) composite particles of hemisphere morphology and narrow size distribution were prepared by a process of single-step swelling of uniform polystyrene template microspheres with emulsion droplets of the monomer n-butyl methacrylate containing the initiator benzoyl peroxide in the presence, or absence, of the co-swelling agent toluene. Butyl methacrylate was then polymerized at 73°C within the template microspheres. Surface and bulk characterization of the particles were performed by methods such as FTIR, elemental analysis, XPS, advancing contact angle, light microscope, SEM, and cross-sectional TEM. Selective surface functionalization of the poly(n-butyl methacrylate) phase of the composite particles was performed by carrying out a similar swelling and polymerization process in the presence of a water-soluble vinylic monomer such as acrylamide.

Original languageEnglish
Pages (from-to)61-70
Number of pages10
JournalJournal of Colloid and Interface Science
Volume288
Issue number1
DOIs
StatePublished - 1 Aug 2005

Bibliographical note

Funding Information:
These studies were partially supported by a Minerva Grant (microscale and nanoscale particles and films), BSF, and the Israeli Ministry of Science.

Funding

These studies were partially supported by a Minerva Grant (microscale and nanoscale particles and films), BSF, and the Israeli Ministry of Science.

FundersFunder number
Israeli Ministry of Science
United States-Israel Binational Science Foundation

    Keywords

    • Composite
    • Hemisphere
    • Microspheres
    • Poly(n-butyl methacrylate)
    • Single-step swelling
    • Template

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