Synthesis and properties of cellulose-functionalized POSS-SiO2/TiO2 hybrid composites

Gwang Wook Hong, Sivalingam Ramesh, Joo Hyung Kim, Hyeon Ju Kim, Ho Saeng Lee

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The mechanical, thermal, optical, electrical and morphological properties of cellulose, an excellent natural biomaterial, can be improved by organic-inorganic hybrid composite methods. Based on the pristine properties of cellulose, the preparation of cellulose-metal oxide hybrid nanocomposites using a dispersion process of nanoparticles into the cellulose host matrix by traditional methods, has limitations. Recently, the functionalized cellulose-polymer-based materials were considered to be an important class of high-performance materials, providing the synthesis of various functional hybrid nanocomposites using a sol-gel method. Transparent cellulose-POSS-amine-silica/titania hybrids were prepared by an in-situ sol-gel process in the presence of γ-aminopropyltrimethoxylsilane (γ-APTES). The methodology involves the formation of covalent bonding between the cellulose-POSS amine and SiO2/TiO2 hybrid nanocomposite material. An analysis of the synthesized hybrid material by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, differential thermal calorimetry, scanning electron microscopy, and transmission electron microscopy indicated that the silica/titania nanoparticles were bonded covalently and dispersed uniformly into the cellulose-POSS amine matrix. In addition, biological properties of the cellulose-POSS-silica/titania hybrid material were examined using an antimicrobial test against pathogenic bacteria, such as Bacillus cereus (F481072) and E.coli (ATCC35150) for the bacterial effect.

Original languageEnglish
Pages (from-to)8048-8054
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number10
DOIs
StatePublished - Oct 2015

Keywords

  • Antimicrobial
  • Cellulose
  • Hybrid
  • Optical transparent
  • POSS amine
  • Sol-gel process

Fingerprint

Dive into the research topics of 'Synthesis and properties of cellulose-functionalized POSS-SiO2/TiO2 hybrid composites'. Together they form a unique fingerprint.

Cite this