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|Title:||Surface modifications of polyaniline films by graft copolymerization|
|Authors:||Kang, E.T. |
|Source:||Kang, E.T.,Neoh, K.G.,Tan, K.L.,Uyama, Y.,Morikawa, N.,Ikada, Y. (1992). Surface modifications of polyaniline films by graft copolymerization. Macromolecules 25 (7) : 1959-1965. ScholarBank@NUS Repository.|
|Abstract:||Both pristine and argon plasma pretreated emeraldine (EM) base films have been subjected to near-UV-light-induced graft copolymerization with acrylamide (AAm), the sodium salt of 4-styrenesulfonic acid (NaSS), and acrylic acid (AAc). The structure and chemical composition at each copolymer surface and interface are studied by angle-resolved X-ray photoelectron spectroscopy (XPS). In each case, the density of surface grafting is enhanced by plasma pretreatment. Surface grafting with the three polymers also leads to a more hydrophilic EM film. Furthermore, grafting with the NaSS and AAc polymers readily gives rise to a self-doped or self-protonated EM surface structure. However, a substantial proportion of the grafted protonic acid groups at the surface remains free for further surface modification and functionalization. © 1992 American Chemical Society.|
|Appears in Collections:||Staff Publications|
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