Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1901
Title: Tailored CeO2 nanoparticles surface in free radical bulk polymerization of methyl methacrylate
Authors: Tunusoğlu, Özge
Demir, Mustafa Muammer
Tunusoğlu, Özge
Demir, Mustafa Muammer
Keywords: Acrylic monomers
Free radical polymerization
Molecular weight distribution
Esters
Nanocomposites
Issue Date: Sep-2013
Publisher: American Chemical Society
Source: Tunusoğlu, Ö., and Demir, M. M. (2013). Tailored CeO2 nanoparticles surface in free radical bulk polymerization of methyl methacrylate. Industrial and Engineering Chemistry Research, 52(37), 13401-13410. doi:10.1021/ie401872y
Abstract: Polymerization of monomer/nanoparticle dispersion, namely in situ polymerization, has been frequently used for the fabrication of polymer nanocomposites. However, the interference of nanoparticle surface with polymerization in the course of composite formation has been tacitly neglected. In this work, surface-functionalized ceria nanoparticles were prepared using various capping agents: 3-(mercaptopropyl) trimethoxy silane, thioglycolic acid, 3-mercaptopropionic acid, and hexadecyltrimethyl ammonium bromide. Both in situ and ex situ approaches were applied for surface functionalization. The particles were dispersed into methyl methacrylate and free radical polymerization was carried out. The process of nanocomposite formation was examined in terms of conversion, molecular weight, and molecular weight distribution. The polymerization responded merely to the in situ functionalized particles. Regardless of the capping agents used, the particles function as a retarder and inhibitor. Their interaction with polymerization medium showed many complexities such that molecular weight was found to be strongly dependent on the capping agent employed.
URI: http://doi.org/10.1021/ie401872y
http://hdl.handle.net/11147/1901
ISSN: 0888-5885
0888-5885
Appears in Collections:Chemistry / Kimya
Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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