Enhanced Interfacial Adhesion between PPO and Glass Beads in Composites by Surface Modification of Glass Beads via In Situ Polymerization and Copolymerization

Xiao Lin Xie, Chak Yin Tang, Xing Ping Zhou, Robert Kwok Yu Li, Zhong Zhen Yu, Qing Xin Zhang, Yiu Wing Mai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

50 Citations (Scopus)


Glass beads were modified with vinyl triethoxyl silane (VTES) followed by in situ copolymerization with styrene (St) and by direct modification with St via in situ polymerization. It was seen that the presence of glass beads did not inhibit the polymerization of St, and FT-IR spectra confirmed that the polystyrene (PS) molecules were grafted on the surfaces of glass beads. When the modified glass beads were filled in a poly(phenylene oxide) (PPO) matrix, the PS segments on the surfaces of glass beads clearly improved compatibility and enhanced interfacial adhesion between the PPO matrix and glass beads, which was responsible for the slightly increased glass transition temperature of the PPO component. Surface modifications, especially by in situ copolymerization of VTES and St, increased significantly notch impact strengths and marginal stiffness and tensile strengths of PPO/glass bead composites.
Original languageEnglish
Pages (from-to)133-138
Number of pages6
JournalChemistry of Materials
Issue number1
Publication statusPublished - 13 Jan 2004

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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