Symmetric and helical growth of polyacetylene fibers over a single copper crystal derived from copper tartrate decomposition |
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Authors: | Qin Yong Li Hong Zhang Zhikun Cui Zuolin |
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Institution: | Key Laboratory of Nanomaterials, Qingdao University of Science and Technology, Zhengzhou Road 53, China. qinqinyoung@yeah.net |
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Abstract: | reaction: see text] Helical polyacetylene fibers with absolutely symmetric structures were prepared by polymerization of acetylene using copper tartrate as a catalyst. There were always only two coiled polyacetylene fibers grown on a single copper nanocrystal. The two coiled fibers had absolutely opposite helical senses but were identical in cycle number, coil diameter, coil length, coil pitch, and fiber diameter. |
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