Journal
POLYMER TESTING
Volume 69, Issue -, Pages 556-562Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymertesting.2018.06.012
Keywords
Polyurethane; poly(hydroxypropyl methacrylate); 1,2-Propanediolisobutyl polyhedral oligomeric; silsesquioxanes; Nanocomposites; Dynamic mechanical analysis; Scanning electron microscopy
Funding
- National Academy of Sciences of Ukraine [2.1.2.1.-1, 2.1.1.5.-3]
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A series of nanocomposites based on multicomponent polymer matrix consisting of polyurethane (PU) and poly (hydroxypropyl methacrylate) (PHPMA), and 1,2-propanediolisobutyl polyhedral oligomeric silsesquioxanes (POSS), used as functionalized nanofiller, have been synthesized. The effect of POSS content (0-10% by weight) on the dynamic mechanical properties (by DMA) and morphology (by SEM) have been investigated. The introduction of POSS into PU/PHPMA matrix was found results in increased (1.5-3 times) storage moduli of nanocomposites depend on amount of nanofiller. Investigation by SEM have shown that POSS-diol, introduced into the multicomponent polymer matrix acts as nanostructuring agent in the system. As a result, the nano composites with more ordered structure are formed leading to obtaining of materials with improved mechanical properties.
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