Cerit, AlaaddinAhmetli, GulnareKurbanli, Refika2020-03-262020-03-2620110021-89951097-4628https://dx.doi.org/10.1002/app.33682https://hdl.handle.net/20.500.12395/26379Polystyrene (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 (CH3CO-) 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. H-1 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. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 1193-1202, 2011en10.1002/app.33682info:eu-repo/semantics/closedAccesspolystyrenemodificationphysicomechanical and thermal propertiesArticle121211931202Q2WOS:000289355500070Q3