Control on self-assembly structures of rod-coil-rod (PANI)-(PEG)-(PANI) triblock copolymer

2008, Volume 2, Issue 1

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Frontiers of Chemical Science and Engineering >> 2008, Volume 2, Issue 1 doi: 10.1007/s11705-008-0003-6

Control on self-assembly structures of rod-coil-rod (PANI)-(PEG)-(PANI) triblock copolymer

Department of Chemistry and Chemical Engineering, Huazhong University of Science and Technology

Available online: 2008-03-05

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Abstract

The self-assembly behaviors of the rod-coil-rod (PANI)-(PEG)-(PANI) triblock copolymer are investigated in different solvents, such as -methyl-2-pyrrolidone (NMP), dimethyl formamide (DMF), ethanol and water. The effects of solvents, concentration and ultrasonic irradiation on self-assembly are discussed. The results indicate that the triblock copolymer forms particles, rods, fiber, networks and fiber bands in the above solvents, respectively. Especially, the triblock copolymer can form a multi-layer, tri-dimensional fibrous network and a petaline structure from the mono-layer fibrous network with the increase of its concentration in ethanol. Also, the ultrasonic irradiation has a great effect on the self-assembly of the triblock copolymer.

Keywords

different ; multi-layer ; mono-layer ; dimethyl formamide ; concentration

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