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Effect of unsaturated keto‐groups on physico‐mechanical and thermal properties of modified polystyrene
Author(s) -
Cerit Alaaddin,
Ahmetli Gulnare,
Kurbanli Refika
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33682
Subject(s) - polystyrene , polymer , materials science , crotonaldehyde , polymer chemistry , fourier transform infrared spectroscopy , condensation , condensation reaction , chemical engineering , organic chemistry , chemistry , composite material , catalysis , thermodynamics , physics , engineering
Polystyrene (PS), after polyolefins, is the most widespread polymer both in industry and daily life, successfully replacing some natural raw materials. In this study, as a serial of our previous study, modified polystyrene containing acetyl group (CH 3 CO‐) was used as a raw material and condensation reaction was performed in basic medium with aliphatic saturated and unsaturated aldehydes. The structures of modified polystyrenes with unsaturated keto‐groups were investigated by chemical and spectral (FTIR vs. 1 H NMR) analyses. The effect of the functional groups bound to the structure of the polymer on physicomechanical and thermal properties of modified polystyrene was investigated. As a result, condensation products of modified polystyrenes with crotonaldehyde and cinnamaldehyde had higher physicomechanical properties and were more stable against the thermal destruction at high temperatures. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011