| 초록 |
Acrylic pressure sensitive adhesives (PSAs) are widely used in various industrial applications. However, higher thermal stability of PSAs is needed especially for the recent semiconductor manufacturing processes. In this study, the thermal resistance of acrylic PSAs was improved by modifying the chain structure of acrylic polymers with the thermally stable moieties. The fluorene derivatives are well known to have high fluorescence yields, good thermal stability, and high glass-transition temperature. 9,9-bis(4-(but-3-enyl)phenyl)-9H-fluorene was synthesized to be used as crosslinking agent for UV-radiation curing of acrylic PSAs. Firstly, 4,4´-(9-fluorenylidene)diphenol was synthesized from fluorenone and phenol. The adhesion performance of acrylic PSA was investigated by measuring peel strength, gel content, and dynamic mechanical analysis. The thermal properties of acrylic PSAs were evaluated by thermogravimetric analysis, and thermomechanical analysis. |
