121st General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code POLY.P-41
Subject Effects of various preparation conditions on the thermally induced healing of styrene ionomers neutralized with amines
Authors Hara Lee, Myong Guen JO1, Kwang-Hwan Ko2, Joon-Seop Kim3,*
Chosun University, Korea
1Department of Polymer science and Engineering, Chosun University, Korea
2Department of Advanced Materials Engineering, Chosun University, Korea
3Department of Polymer Science and Engineering, Chosun University, Korea
Abstract In this work, we studied the thermally induced self-healing of the sulfonated polystyrene ionomers neutralized with either ethylamine or hexylamine. It was found that the self-healing efficiencies of the amine-neutralized ionomers were better than that of un-neutralized copolymer. It was also observed that the healing efficiencies of the hexylamine-neutralized ionomers were higher than those of the ethylamine-neutralized ionomers, thermally treated at the same temperature. In addition, the effect of the neutralization degree on the healing behavior of the ionomers was found to be stronger for the hexyl amine ionomers than for the ethylamine ionomers. As expected, the thermal treatment temperatures also influenced the healing properties of the ionomers. The above results indicated that the ionomer healing depended strongly on the glass transition temperature, affected by the alkyl chain length of the amines, neutralization degrees, and heat treatment temperature.
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