Publication: Visible light-induced surfactant-free emulsion polymerization using camphorquinone/tertiary amine as the initiating system for the synthesis of amine-functionalized colloidal nanoparticles
Issued Date
2013-11-01
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ISSN
10957103
00219797
00219797
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2-s2.0-84883555994
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Colloid and Interface Science. Vol.409, (2013), 25-31
Suggested Citation
Montri Ratanajanchai, Dolphawan Tanwilai, Panya Sunintaboon Visible light-induced surfactant-free emulsion polymerization using camphorquinone/tertiary amine as the initiating system for the synthesis of amine-functionalized colloidal nanoparticles. Journal of Colloid and Interface Science. Vol.409, (2013), 25-31. doi:10.1016/j.jcis.2013.07.043 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/31461
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Title
Visible light-induced surfactant-free emulsion polymerization using camphorquinone/tertiary amine as the initiating system for the synthesis of amine-functionalized colloidal nanoparticles
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Abstract
A visible light-induced surfactant-free emulsion polymerization (SFEP) was developed as an alternative pathway for the preparation of amine-functionalized nanoparticles by using the photo-initiating system consisting of camphorquinone coupled with tertiary amine (CQ/3°-amine). Water-soluble macromolecules containing 3°-amines were used as the sources of 3°-amine species, which not only function with CQ to generate initiating free radicals, but also provide colloidal stabilization to the resulting colloidal products. The prepared nanoparticles showed uniformed size distribution and good colloidal stability with positively charged surface. For SFEP induced by CQ/polyethyleneimine (PEI) photo-redox couple, the polymerization of methyl methacrylate (MMA) was affected by both light intensity and initiator concentration. In addition, to obtain higher solid content products, the weight ratio of PEI:MMA. =. 1:4 was employed. Finally, an opportunity for immobilizing various amine containing polymers by our photo-induced SFEP was evaluated. The achievement of this SFEP also depended on 3°-amine content of the macromolecules used. © 2013 Elsevier Inc.