Surface-initiated atom transfer radical polymerization from TiO2 nanoparticles

Jung Tae Park, Joo Hwan Koh, Jong Kwan Koh, Jong Hak Kim

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Two kinds of hydrophilic polymers, poly(oxyethylene methacrylate) (POEM) and poly(styrene sulfonic acid) (PSSA), were grafted from TiO2 nanoparticles via the surface-initiated atom transfer radical polymerization (ATRP) technique. Chlorine modified TiO2 nanoparticles (TiO2-Cl), the ATRP initiators, were synthesized by the reaction of -OH in TiO2 with 2-chloropropionyl chloride (CPC). FT-IR, UV-vis spectroscopy and X-ray photoelectron spectroscopy (XPS) clearly showed that the polymer chains were successfully grafted from the surface of TiO2 nanoparticles. The hydrophilically modified TiO2 nanoparticles have a better dispersion in alcohol than unmodified nanoparticles, as revealed by transmission electron microscopy (TEM). It was also found that the polymer grafting did not significantly alter the crystalline structure of the TiO2 nanoparticles according to the X-ray diffraction (XRD) patterns. Grafting amounts were 10% of the weight for both TiO2-POEM and TiO2-PSSA nanoparticles, as determined by thermogravimetric analysis (TGA).

Original languageEnglish
Pages (from-to)3739-3744
Number of pages6
JournalApplied Surface Science
Volume255
Issue number6
DOIs
Publication statusPublished - 2009 Jan 1

Fingerprint

Atom transfer radical polymerization
Nanoparticles
Polymers
Styrene
Sulfonic Acids
Methacrylates
Acids
Chlorine
Ultraviolet spectroscopy
Diffraction patterns
Thermogravimetric analysis
Chlorides
Alcohols
X ray photoelectron spectroscopy
Crystalline materials
Transmission electron microscopy
X ray diffraction

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Park, Jung Tae ; Koh, Joo Hwan ; Koh, Jong Kwan ; Kim, Jong Hak. / Surface-initiated atom transfer radical polymerization from TiO2 nanoparticles. In: Applied Surface Science. 2009 ; Vol. 255, No. 6. pp. 3739-3744.
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Surface-initiated atom transfer radical polymerization from TiO2 nanoparticles. / Park, Jung Tae; Koh, Joo Hwan; Koh, Jong Kwan; Kim, Jong Hak.

In: Applied Surface Science, Vol. 255, No. 6, 01.01.2009, p. 3739-3744.

Research output: Contribution to journalArticle

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