Performance enhancement of polybenzoxazine by hybridization with polysiloxane

Hosta Ardhyananta, Mohd Haniff Wahid, Masahiro Sasaki, Tarek Agag, Takehiro Kawauchi, Hanafi Ismail, Tsutomu Takeichi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)


Polybenzoxazine-polydimethylsiloxane (PBa-PDMS) hybrids were successfully prepared in situ by the ring-opening polymerization of benzoxazine (Ba) and the sol-gel process of diethoxydimethylsilane (DEDMS). The reaction conditions were optimized, and homogeneous opaque hybrid films were obtained up to 13 wt% of PDMS content by using p-toluenesulfonic acid as the catalyst for sol-gel process. The domain size of PDMS in the PBa matrix was examined by SEM. The tensile strength and elongation at break of the PBa-PDMS hybrid films were higher than those of pristine PBa, because of the toughening effect of PDMS. Dynamic viscoelastic analysis showed that the glass transition temperature of the hybrid was also higher than that of pristine PBa. Moreover, the decomposition temperatures and weight residue at 850 °C increased with the increase of PDMS content as evidenced by thermogravimetric analysis.

Original languageEnglish
Pages (from-to)4585-4591
Number of pages7
Issue number21
Publication statusPublished - 6 Oct 2008
Externally publishedYes


  • Organic--inorganic hybrid
  • Phenolic resin
  • Sol-gel process


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