Kim, JS Hong, MC Nah, YH Lee, Y Han, S Lim, HE 2024-01-21T11:01:47Z 2024-01-21T11:01:47Z 2021-09-05 2002-03-14 0021-8995 https://pubs.kist.re.kr/handle/201004/139688 The wetting properties of polystyrene-based ionomers treated with plasma source ion implantation (PSII) were investigated by the measurement of water contact angles. When sulfonated ionomers were aged for a few days, the hydrophobic recovery for the ionomers became much slower than that for the nonionic polymers. However, when the samples were aged over 20 days, the water contact angle of the ionomers converged with that of the nonionic polymer. Thus, it was concluded that the ionic interaction between the ionic groups and the presence of ionic groups together resulted in the slow hydrophobic recovery and that the aging effect was significant for the ionomers. For the methacrylate ionomer of low ion content, on the other hand, it was found that the PSII treatment produced only a small change in hydrophobic recovery behavior. Thus, it was suggested that the low ionic content coupled with the small size of the ionic unit might cause changes only of a very insignificant degree in hydrophobic recovery behavior. (C) 2002 John Wiley Sons, Inc. English JOHN WILEY & SONS INC FILLED POLYMERS CHAIN MOBILITY SURFACE MODEL SPECTROSCOPY TRANSITIONS MORPHOLOGY DYNAMICS BEHAVIOR Wetting properties of polystyrene ionomers treated with plasma source ion implantation Article 10.1002/app.10265 1 JOURNAL OF APPLIED POLYMER SCIENCE, v.83, no.11, pp.2500 - 2504 JOURNAL OF APPLIED POLYMER SCIENCE 83 11 2500 2504 scie scopus 000173214600029 Polymer Science Polymer Science Article FILLED POLYMERS CHAIN MOBILITY SURFACE MODEL SPECTROSCOPY TRANSITIONS MORPHOLOGY DYNAMICS BEHAVIOR ionomers contact angle plasma glass-transition ion implantation polystyrene