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Robust preparation of core-shell type silica/polymer nanocomposites by using surface-initiated ARGET ATRP

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Abstract

A facile route for covalent functionalization of silica (SiO2) nanoparticles with poly(methyl methacrylate) (PMMA) has been investigated. The surfaces of the SiO2 nanoparticles were treated with 2-bromo-2-methyl-N-[3-(trimethoxysilyl)propyl] propanamide to introduce the initiator moieties on the surface. Subsequently, activators regenerated by using electron transfer atom transfer radical polymerization (ARGET ATRP) of methyl methacrylate were employed for the preparation of SiO2/PMMA nanocomposites with a CuBr2/ N,N,N′, N″,N″-pentamethyldiethylenetriamine catalyst system and a tin(II) 2-ethylhexanoate reducing agent. The modification of SiO2 was confirmed by surface analyses including Fourier transfer infrared spectroscopy and X-ray photoelectron spectroscopy. The morphology of the nanocomposites was investigated by using field-emission scanning electron microscopy and transmission electron microscopy. A thermogravimetric analysis was used to evaluate the thermal properties and the grafting density. The colloidal stability of silica nanoparticles in a common organic solvent was explicitly shown to have been remarkably improved by the grafting process.

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Authors and Affiliations

  1. Department of Image Science and Engineering, Pukyong National University, Busan, 608-737, Korea

    Thanh Binh Mai, Thi Nga Tran, Dong Woo Kim & Kwon Taek Lim

  2. Department of Chemical Engineering, Pukyong National University, Busan, 608-737, Korea

    Seong-Soo Hong

  3. Department of Materials Engineering, Pukyong National University, Busan, 608-737, Korea

    Chan Park

Authors
  1. Thanh Binh Mai
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  2. Thi Nga Tran
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  3. Dong Woo Kim
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  4. Kwon Taek Lim
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  5. Seong-Soo Hong
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  6. Chan Park
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Correspondence to Kwon Taek Lim.

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Mai, T.B., Tran, T.N., Kim, D.W. et al. Robust preparation of core-shell type silica/polymer nanocomposites by using surface-initiated ARGET ATRP. Journal of the Korean Physical Society 66, 87–91 (2015). https://doi.org/10.3938/jkps.66.87

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  • DOI: https://doi.org/10.3938/jkps.66.87

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