Cylindrical PCL brushes on the surface of lanthanum hydroxide nanowires by ring-opening polymerization
A core-shell hybrid nanostructure, a hard core of single-crystalline lanthanum hydroxide nanowires and a soft shell of brushes of poly (ɛ-caprolactone) (PCL), has been successfully prepared by ring-opening polymerization (ROP) on the surface of nanowires. Such special structures were proved by TEM images. Meanwhile, the thickness of polymer layers was measured. The chemical component and the grafted PCL quantity of the sample were characterized by FTIR and TGA, which provides a simple and universal method to functionalize non-carbon nanowires. The modified lanthanum hydroxide nanowires can be well-dispersed in good solvents for PCL.
Keywordshybrid nanomaterials polymer brushes ring-opening polymerization
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- 2.Sun G X, Chen G M, Liu Z P. Progress in polystyrene/carbon nanotube composites. Chin Polym Bull, 2009, 2: 12–20Google Scholar
- 11.Qu L T, Peng Q, Dai L M, et al. Carbon nanotube electroactive polymer materials: Opportunities and challenges. MRS Bull, 2008, 33: 215–224Google Scholar
- 18.Kuang J M, Yuan J Y, Zhou M, et al. Grafting of PEG onto lanthanum hydroxide nanowires Mater Lett, 2008, 62: 6078–6080Google Scholar
- 21.Kowalski A, Duda A, Penczek S. Mecheanism of cyclic esters polumerization initiated with tin(II) octoate 2. Macromolecules fitted with tin(II) alkoxide species observed directly in MALDI-TOF spectra. Macromolecules, 2000, 33: 689–695Google Scholar