Journal
MATERIALS LETTERS
Volume 62, Issue 6-7, Pages 998-1001Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2007.07.036
Keywords
polymer; nanomaterials; nanowires; microspheres; cetyltrimethylammonium bromide
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Through lamellar inorganic/organic mesostructures as templates, we successfully obtained the morphology changes of poly (N-methylaniline) (PNMA) from one-dimensional (1D) nanowires to three-dimensional (31)) microspheres only by adjusting the concentration of N-methylaniline (NMA) monomer in the presence of cetyltrimethylammonium bromide (CTAB). The diameter of PNMA nanowires could be changed from 7080 nm to 40-60 nm by adjusting the concentration of monomer (from 0.024 M to 0.012 M). On the other hand, PNMA microspheres with the diameter ranged from 200 nm to 1 mu m were obtained when the concentration of monomer was below 0.006 M. The influence of the concentration of HCl to the morphology of PNMA was investigated. The mechanism of the formation for nanowires and microspheres was also discussed. (c) 2007 Elsevier B.V. All rights reserved.
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