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A Novel Polystyrene Nanocomposite with Fully Phenyl POSSs Functionalized
Author(s) -
Blanco Ignazio,
Bottino Francesco A.,
Ognibene Giulia,
Cicala Gianluca
Publication year - 2020
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201900070
Subject(s) - thermogravimetric analysis , nanocomposite , polystyrene , materials science , thermal stability , scanning electron microscope , polymer chemistry , polymerization , styrene , chemical engineering , polymer , composite material , copolymer , engineering
Two novel polyhedral oligomeric silsesquioxanes/polystyrene (POSS/PS) nanocomposites are synthesized by in situ polymerization of styrene, in the presence of 5% w/w of POSS in which two identical silicon cages Ar 7 (SiO 1.5 ) 8 (with Ar═Phenyl) are linked to different rigid molecular bridges. The obtained nanocomposites are characterized by 1 H‐NMR spectroscopy, thermogravimetric analysis, and by scanning electron microscopy (SEM). The resistance to the thermal degradation is evaluated by measuring the temperature at 5% mass loss ( T 5% ), whose values for the prepared nanocomposites are largely higher than those found for PS, in the same experimental conditions. SEM analysis showed a good dispersion of the molecular filler within the matrix, thus providing a justification for the increasing in PS/POSSs thermal stability.