By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Polymer Research have been published. According to news reporting originating from Beijing, People's Republic of China, by VerticalNews correspondents, research stated, "One-dimensional confinements were fabricated by coaxial electrospinning and confined crystallization as well as crystal transition of poly(vinylidene fluoride) (PVDF) were studied. It was found that the PVDF can be confined in the nano-tube with the diameter from 50 nm to 350 nm, formed by polyacrylonitrile (PAN)."
Our news editors obtained a quote from the research from the Institute of Chemistry, "Since the crystallization temperature of PVDF is higher than the glass transition temperature of PAN, the crystallization of PVDF took place in the soft PAN nano-tubes. The confinement weakened the ability of PVDF crystallization, resulting in the crystallinity (X-c) decreasing sharply in the confined condition and the crystallization temperature (T-c) shifted to very low temperature when the confinement diameter was smaller than 75 nm. The observation by FTIR indicated that there was transition in absorption for during cooling where the absorption abruptly rose up at certain temperature and ended immediate raise at a low temperature. The change of temperature range for transition was similar with the T-c checked by DSC, which was related to the crystallization. Also, it was observed that the crystalline structure in as-spun fibers was almost beta-phase, and beta-crystal transformed into alpha-crystal at different degrees in confined and un-confined PVDF."
According to the news editors, the research concluded: "These results inferred the chain orientation in company with confinements affected the crystallization of PVDF."
For more information on this research see: The crystallization and crystal transition of PVDF in PAN nano-tube. Polymer, 2013;54(17):4710-4718. Polymer can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Polymer - www.elsevier.com/wps/product/cws_home/30466)
The news editors report that additional information may be obtained by contacting H.J. Luo, Chinese Academy Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, People's Republic of China. Additional authors for this research include Y. Huang and D.S. Wang.
Keywords for this news article include: Asia, Beijing, Polymer Research, People's Republic of China
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