Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 46, Issue 15, Pages 5157-5166Publisher
WILEY
DOI: 10.1002/pola.22843
Keywords
crosslinking; nanocomposites; polyhedral oligomeric silsesquioxane; polyimide; POSS
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Thermally induced polymerization of multifunctional methylmethacrylate POSS (MMA-POSS) was studied in this work for preparation of polymer/POSS nanocomposites. The polymerization of MMA-POSS could be promoted with benzoyl peroxide (BPO). Self-assembly of POSS into a layer-by-layer structure in the MMA-POSS polymer (TP-MMA-POSS) is observed with a transmission electron microscopy. An ultra-low-k value of about 1.85 is measured with TP-MMA-POSS. In addition, polyimide-POSS nanocomposites are also prepared. These nanocomposites demonstrate good homogeneity and enhanced mechanical properties. (C) 2008 Wiley Periodicals, Inc.
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