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Influence of inorganic nanoparticles on the glass transitions of polyurea elastomers
Author(s) -
Reinecker Marius,
Fuith Armin,
Soprunyuk Viktor,
SánchezFerrer Antoni,
Mrzel Aleš,
Torre Renato,
Schranz Wilfried
Publication year - 2013
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201329317
Subject(s) - polyurea , glass transition , elastomer , materials science , nanocomposite , polymer , nanoparticle , nanoscopic scale , polymer nanocomposite , carbon nanotube , composite material , dynamic mechanical analysis , molecular dynamics , chemical engineering , nanotechnology , polymer chemistry , chemistry , computational chemistry , coating , engineering
The properties of polymers can be significantly changed by incorporating nanoparticles, which yields a great potential for applications. In the present study, we use nanocomposites of new polyurea elastomers filled with 0.1, 0.5, and 1 wt.% MoS 2 nanotubes. Using dynamic mechanical analysis (DMA) measurements we show, that the glass transition temperatures T g of the nanocomposites are increased by small amounts of inorganic nanotubes. In line with results from computer simulations of polymer melts with nanoscopic particles, we explain the observed shift of T g to be due to a gradual slowing down of polymer chain dynamics in the proximity of nanotubes.