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|Title:||Synthesis and characterization of poly(ethylene glycol)-grafted polyaniline|
|Authors:||Wang, P. |
|Source:||Wang, P., Tan, K.L., Zhang, F., Kang, E.T., Neoh, K.G. (2001). Synthesis and characterization of poly(ethylene glycol)-grafted polyaniline. Chemistry of Materials 13 (2) : 581-587. ScholarBank@NUS Repository. https://doi.org/10.1021/cm000829c|
|Abstract:||Poly(ethylene glycol) (PEG)-grafted polyaniline (PANi) copolymers were prepared by incorporating a chlorine end-capped methoxy PEG (mPEGCl) of molecular weight of about 2000 onto the leucoemeraldine form of PANi via N-alkylation. The microstructures and compositions of the mPEG-grafted PANi (mPEG-g-PANi) copolymers were characterized by FT-IR, elemental analysis, UV - visible absorption spectroscopy, thermogravimetric (TG) analysis and X-ray photoelectron spectroscopy (XPS). The graft concentration (degree of N-alkylation) can be controlled by adjusting the molar feed ratio of mPEGCl to the number of repeat units of PANi. The mPEG-g-PANi copolymers showed enhanced solubility in common organic solvents and water. The electrical conductivity of the mPEG-g-PANi copolymer film decreased by a factor of 5 at the mPEG graft concentration of 0.05. The mPEG-g-PANi copolymer with a high graft concentration was very effective in preventing platelet adhesion.|
|Source Title:||Chemistry of Materials|
|Appears in Collections:||Staff Publications|
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