Synthesis and Characterization of Poly(ethylene glycol)-Grafted Polyaniline
Source abstract
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.
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Research context
OpenAlex topics: Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials · Electrochemical sensors and biosensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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