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Clay-PMMA Nanocomposites by Photoinitiated Radical Polymerization Using Intercalated Phenacyl Pyridinium Salt Initiators

✍ Scribed by Alper Nese; Sinan Sen; Mehmet Atilla Tasdelen; Nihan Nugay; Yusuf Yagci

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
249 KB
Volume
207
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Summary: In situ synthesis of poly(methyl methacrylate) (PMMA) nanocomposites by photopolymerization using organophilic montmorillonite (MMT) as the layered clay is reported. MMT clay was ion exchanged with N‐phenacyl, N,N‐dimethylanilinium hexafluoro phosphate (PDA) which acts as both suitable intercalant‐ and photo‐initiator. These modified clays were then dispersed in methyl methacrylate (MMA) monomer in different loading degrees to carry out the in situ photopolymerization. Intercalation ability of the photoinitiator and exfoliated nanocomposite structure were evidenced by both X‐ray diffraction (XRD) spectroscopy and transmission electron microscopy (TEM). Thermal properties and morphologies of the resultant nanocomposites were also studied.

Schematic representation of clay‐PMMA nanocomposites by photoinitiated radical polymerization.

imageSchematic representation of clay‐PMMA nanocomposites by photoinitiated radical polymerization.

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Poly(methyl methacrylate)/clay nanocomposites by photoinitiated free radical polymerization using intercalated monomer
✍ Ayhan Oral; Mehmet Atilla Tasdelen; Adem Levent Demirel; Yusuf Yagci 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 515 KB

A series of poly(methyl methacrylate)/montmorillonite (PMMA/MMT) nanocomposite were prepared by successfully dispersing the inorganic nanolayers of MMT clay in an organic PMMA matrix via in situ photoinitiated free radical polymerization. Methyl methacrylate monomer was first intercalated into the i