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Synthesis and structure of polymethylsilsesquioxane–clay nanocomposite via in situ intercalative polymerization
Author(s) -
Ma Jun,
Shi Lianghe,
Yang Mingshu,
Li Baiyu,
Liu Haiyun,
Xu Jian
Publication year - 2002
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.11369
Subject(s) - montmorillonite , annealing (glass) , nanocomposite , polymerization , in situ , materials science , chemical engineering , transmission electron microscopy , in situ polymerization , silicate , polymer chemistry , molecule , polymer , diffraction , composite material , chemistry , organic chemistry , nanotechnology , optics , physics , engineering
Polymethylsilsesquioxane (PMSQ)–montmorillonite (MMT) nanocomposites were prepared by in situ intercalative polymerization. The dispersion of the MMT layers within the matrix was verified by X‐ray diffraction and transmission electron microscopy, which revealed an intercalated morphology with layer spacing of 3.42 nm. The layer spacing was not increased after annealing at 150°C for 3 h. The reason for this result is explained in light of the molecular structure of PMSQ synthesized in and out of the nanoconfined environment. The coherent order of the silicate layer was decreased after the annealing, possibly because of the change in the PMSQ molecule during the annealing process. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 3708–3711, 2002