4.7 Article

Rose thorns-like polymer micro/nanofibers via electrospinning and controlled temperature-induced self-assembly

期刊

EUROPEAN POLYMER JOURNAL
卷 47, 期 8, 页码 1563-1568

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2011.05.007

关键词

Electrospinning; Rose thorns-like structure; Morphology control; Self-assembly

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Novel rose thorns-like nanofibers, composed of polyarylene ether nitriles (PEN) rose stems and iron phthalocyanine (FePc) thorns, are prepared by combining electrospinning and controlled temperature-induced self-assembly. After removing solvent and subsequent temperature treatment, the FePc sheath structure changes from bead structure to rose thorns-like structure. The unique nanoscale architecture can be finely controlled by the processing time and temperature. The length of thorns on the rose stems can change from several nanometers to decade micrometers. The driving force for the morphology changes comes from self-assembly of FePc, including the pi-pi supramolecular interaction between aromatic cores and the cooperative complexation of metal ions between peripheral crown ether moieties. This novel structure, rendering a 3-D feature, can offer potential in a number of applications, including nanoelectronics. (C) 2011 Elsevier Ltd. All rights reserved.

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