Surface modification of silica nanoparticles with hydrophilic polymers

Jung Tae Park; Jin Ah Seo; Sung Hoon Ahn; Jong Hak Kim; Sang Wook Kang

doi:10.1016/j.jiec.2010.03.030

Surface modification of silica nanoparticles with hydrophilic polymers

Jung Tae Park, Jin Ah Seo, Sung Hoon Ahn, Jong Hak Kim, Sang Wook Kang

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

115 Citations (Scopus)

Abstract

Silica (SiO₂) nanoparticles grafted with a water-soluble polymer, i.e. nonionic poly(oxyethylene methacrylate) (POEM) and ionic poly(styrene sulfonic acid) (PSSA) were prepared via a three-step synthetic approach: (1) the activation of silanol group (-OH) in the surface of SiO₂ nanoparticles, (2) surface modification to chlorine (-Cl) group and (3) graft polymerization from nanoparticles via atom transfer radical polymerization (ATRP). The successful synthesis and chemical compositions in the modified SiO₂ nanoparticles were confirmed using FT-IR, UV-visible spectroscopy and X-ray photoelectron spectroscopy (XPS). Thermogravimetric analysis (TGA) results indicated that the grafting amounts of polymer in the nanoparticles were 5 and 8wt% for POEM and PSSA, respectively. X-ray diffraction (XRD) showed that the grafting of polymers did not significantly alter the microstructure of SiO₂ nanoparticles. Grafting of water-soluble polymer improved the dispersion properties of nanoparticles in alcohol, as verified by scanning electron microscopy (SEM).

Original language	English
Pages (from-to)	517-522
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	16
Issue number	4
DOIs	https://doi.org/10.1016/j.jiec.2010.03.030
Publication status	Published - 2010 Jul

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (R01-2008-000-10112-0) and by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)

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10.1016/j.jiec.2010.03.030

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title = "Surface modification of silica nanoparticles with hydrophilic polymers",

abstract = "Silica (SiO2) nanoparticles grafted with a water-soluble polymer, i.e. nonionic poly(oxyethylene methacrylate) (POEM) and ionic poly(styrene sulfonic acid) (PSSA) were prepared via a three-step synthetic approach: (1) the activation of silanol group (-OH) in the surface of SiO2 nanoparticles, (2) surface modification to chlorine (-Cl) group and (3) graft polymerization from nanoparticles via atom transfer radical polymerization (ATRP). The successful synthesis and chemical compositions in the modified SiO2 nanoparticles were confirmed using FT-IR, UV-visible spectroscopy and X-ray photoelectron spectroscopy (XPS). Thermogravimetric analysis (TGA) results indicated that the grafting amounts of polymer in the nanoparticles were 5 and 8wt% for POEM and PSSA, respectively. X-ray diffraction (XRD) showed that the grafting of polymers did not significantly alter the microstructure of SiO2 nanoparticles. Grafting of water-soluble polymer improved the dispersion properties of nanoparticles in alcohol, as verified by scanning electron microscopy (SEM).",

author = "Park, {Jung Tae} and Seo, {Jin Ah} and Ahn, {Sung Hoon} and Kim, {Jong Hak} and Kang, {Sang Wook}",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (R01-2008-000-10112-0) and by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.",

year = "2010",

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AU - Park, Jung Tae

AU - Seo, Jin Ah

AU - Ahn, Sung Hoon

AU - Kim, Jong Hak

AU - Kang, Sang Wook

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (R01-2008-000-10112-0) and by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.

PY - 2010/7

Y1 - 2010/7

N2 - Silica (SiO2) nanoparticles grafted with a water-soluble polymer, i.e. nonionic poly(oxyethylene methacrylate) (POEM) and ionic poly(styrene sulfonic acid) (PSSA) were prepared via a three-step synthetic approach: (1) the activation of silanol group (-OH) in the surface of SiO2 nanoparticles, (2) surface modification to chlorine (-Cl) group and (3) graft polymerization from nanoparticles via atom transfer radical polymerization (ATRP). The successful synthesis and chemical compositions in the modified SiO2 nanoparticles were confirmed using FT-IR, UV-visible spectroscopy and X-ray photoelectron spectroscopy (XPS). Thermogravimetric analysis (TGA) results indicated that the grafting amounts of polymer in the nanoparticles were 5 and 8wt% for POEM and PSSA, respectively. X-ray diffraction (XRD) showed that the grafting of polymers did not significantly alter the microstructure of SiO2 nanoparticles. Grafting of water-soluble polymer improved the dispersion properties of nanoparticles in alcohol, as verified by scanning electron microscopy (SEM).

AB - Silica (SiO2) nanoparticles grafted with a water-soluble polymer, i.e. nonionic poly(oxyethylene methacrylate) (POEM) and ionic poly(styrene sulfonic acid) (PSSA) were prepared via a three-step synthetic approach: (1) the activation of silanol group (-OH) in the surface of SiO2 nanoparticles, (2) surface modification to chlorine (-Cl) group and (3) graft polymerization from nanoparticles via atom transfer radical polymerization (ATRP). The successful synthesis and chemical compositions in the modified SiO2 nanoparticles were confirmed using FT-IR, UV-visible spectroscopy and X-ray photoelectron spectroscopy (XPS). Thermogravimetric analysis (TGA) results indicated that the grafting amounts of polymer in the nanoparticles were 5 and 8wt% for POEM and PSSA, respectively. X-ray diffraction (XRD) showed that the grafting of polymers did not significantly alter the microstructure of SiO2 nanoparticles. Grafting of water-soluble polymer improved the dispersion properties of nanoparticles in alcohol, as verified by scanning electron microscopy (SEM).

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Surface modification of silica nanoparticles with hydrophilic polymers

Abstract

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