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      Synthesis and characterization of polysulfone / POSS hybrid networks by photoinduced crosslinking polymerization

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      Author
      Dizman, C.
      Uyar, Tamer
      Tasdelen, M. A.
      Yagci, Y.
      Date
      2013
      Source Title
      Macromolecular Materials and Engineering
      Print ISSN
      1438-7492
      Electronic ISSN
      1439-2054
      Publisher
      Wiley
      Volume
      298
      Issue
      10
      Pages
      1117 - 1123
      Language
      English
      Type
      Article
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      Abstract
      Crosslinked polysulfone/polyhedral oligomeric silsesquioxane (POSS) hybrid networks were synthesized in this work by photoinduced copolymerization of polysulfone dimethacrylate (PSU-DMA) and multifunctional POSS-methacrylamide (POSS-MAAm) with various feed ratios. The morphology of the nanocomposites was investigated by transmission electron microscopy (TEM), which suggests the random dispersion of POSS in the PSU matrix without macroscopic agglomeration. Thermogravimetric analysis results confirmed that the thermal stability and char yield of PSU-DMA/POSS-MAAm nanocomposites increased with the increase of POSS loading. Enhanced glass transition temperatures and storage modulus of the networks were observed to be higher than its precursor polymer. Polysulfone-based hybrid networks containing various POSS loadings are synthesized by photoinduced copolymerization of polysulfone dimethacrylate and multifunctional POSS-methacrylamide. While TEM results suggest the random dispersion of POSS in the polymer matrix, thermal and dynamic mechanical analyses clearly confirm the better thermal and mechanic behavior of hybrid networks. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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      http://hdl.handle.net/11693/20780
      Published Version (Please cite this version)
      http://dx.doi.org/10.1002/mame.201200351
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      • Department of Chemistry 594
      • Institute of Materials Science and Nanotechnology (UNAM) 1775
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