Elaboration and thermal analysis of nanocomposites based on poly(methyl methacrylate‐ co ‐4‐vinylpyridine) and Maghnia bentonite | Zendy

Ouaad Kamal | Zendy; Djadoun Saïd | Zendy

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Elaboration and thermal analysis of nanocomposites based on poly(methyl methacrylate‐ co ‐4‐vinylpyridine) and Maghnia bentonite

Author(s) -

Ouaad Kamal,

Djadoun Saïd

Publication year - 2013

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.38915

Subject(s) - exfoliation joint , nanocomposite , differential scanning calorimetry , copolymer , thermal stability , materials science , bentonite , glass transition , methyl methacrylate , methacrylate , intercalation (chemistry) , polymer chemistry , organoclay , chemical engineering , transmission electron microscopy , composite material , polymer , chemistry , organic chemistry , nanotechnology , graphene , physics , engineering , thermodynamics

Nanocomposites based on an organically modified bentonite, from Maghnia Algeria (OBT) and a copolymer of methyl methacrylate with 4‐vinylpyridine (PMM4VP) synthesized in dioxan at room temperature using a neutral Ni(II)α‐benzoinoxime complex as a single component initiator, were elaborated via solution intercalation method and characterized by several techniques. X‐ray diffraction and transmission electron microscopy investigations indicate that mainly exfoliated and intercalated PMM4VP/OBT nanocomposites were elaborated and that the degree of exfoliation decreases with an increase of the OBT loading. Thermal analyses of these nanocomposites compared with their virgin copolymer confirmed a significant improvement of their thermal stability as evidenced by an increase of 28°C in their onset degradation temperatures. In addition, differential scanning calorimetry displayed an increase in the range of 12–18°C in their glass transition temperatures relative to their virgin copolymer. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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