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|Title:||Surface modification of poly(tetrafluoroethylene) films by plasma pre-activation and plasma polymerization of glycidyl methacrylate|
|Source:||Zou, X.P.,Kang, E.T.,Neoh, K.G.,Cui, C.Q.,Lim, T.B. (2001-12). Surface modification of poly(tetrafluoroethylene) films by plasma pre-activation and plasma polymerization of glycidyl methacrylate. Plasmas and Polymers 5 (3-4) : 219-234. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1011354001424|
|Abstract:||Surface modification of poly(tetrafuoroethylene) (PTFE) film by plasma polymerzation and deposition of glycidyl methacrylate (GMA), in the presence and absence of Ar or O2 plasma pre-activation, was carried out to enhance the adhesion with polyimides (PI) film in the presence of an epoxy adhesive. For deposition carried out at low RF power, a high epoxide concentration was preserved in the plasma-polymerized GMA (pp-GMA) layer on PTFE (pp-GMA-PTFE). However, high adhesion strength of the PI/pp-GMA-PTFE laminate was obtained only in the presence of O2 plasma pre-activation of the PTFE substrates prior to plasma polymerization and deposition of GMA. In the absence of any plasma pre-activation or in the presence of Ar plasma pre-activation, the deposited pp-GMA layer on the PTFE surface could be readily removed by solvent extraction. The adhesion enhancement of the PI/pp-GMA-PTFE laminates in the presence of O2 plasma pre-activation was attributed to the preservation of the epoxide functional groups in the pp-GMA layer, the curing of the GMA chains into the matrix of the epoxy adhesive, and the covalent bonding of the pp-GMA layer on the PTFE surface.|
|Source Title:||Plasmas and Polymers|
|Appears in Collections:||Staff Publications|
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