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https://doi.org/10.1021/cm000829c
Title: | Synthesis and characterization of poly(ethylene glycol)-grafted polyaniline | Authors: | Wang, P. Tan, K.L. Zhang, F. Kang, E.T. Neoh, K.G. |
Issue Date: | 2001 | Citation: | 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 | URI: | http://scholarbank.nus.edu.sg/handle/10635/52680 | ISSN: | 08974756 | DOI: | 10.1021/cm000829c |
Appears in Collections: | Staff Publications |
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