期刊
MATERIALS LETTERS
卷 65, 期 17-18, 页码 2812-2815出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.05.116
关键词
Flower-like; Microstructure; Polyaniline; Polymers; Polyvinyl alcohol; Spectroscopy
资金
- National Natural Science Foundation of China (NSFC) [50821062]
- Beijing Municipal Commission of Education
Flower-like polyaniline-polyvinyl alcohol (PANI/PVA) multidimensional architectures assembled from 2D petals were successfully synthesized in the dilute solution of PVA by the oxidation polymerization. PANI/PVA flowers have a diameter of about 2.5 mu m and consist of many interlaced sheet petals. Chemical structure and composition of polymerized PANI/PVA were characterized by Fourier transform infrared (FTIR) spectroscopy, Ultraviolet and visible spectroscopy (UV-vis), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). In order to research the formation mechanism of the 3D flower-like PANI/PVA, their growth process was followed by measuring the morphological evolutions of products with the different polymerization times. The results showed that the flower-like PANI/PVA originated from sheet petals, which then self-assembled into flower-like microstructures. In addition, the effect of PVA concentration on the morphology of the 3D flower-like PANI/PVA was also investigated. (C) 2011 Elsevier B.V. All rights reserved.
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