Development of TiO2 and TiO2/Fe-based polymeric nanocomposites by single-step laser pyrolysis

被引:6
|
作者
Alexandrescu, R. [1 ]
Morjan, I. [1 ]
Dumitrache, F. [1 ]
Scarisoreanu, M. [1 ]
Fleaca, C. T. [1 ]
Morjan, I. P. [1 ]
Barbut, A. D. [1 ]
Birjega, R. [1 ]
Prodan, G. [2 ]
机构
[1] Natl Inst Lasers Plasma & Radiat Phys, Bucharest 077125, Romania
[2] Ovidius Univ Constanta, Constanta, Romania
关键词
Nanoparticles; TiO2-based polymeric nanocomposites; Laser pyrolysis; Methyl methacrylate; Hexamethyl disiloxane; OXIDATIVE POLYMERIZATION; THERMAL PLASMA; DECOMPOSITION; NANOPARTICLES; FORMALDEHYDE; NANOPOWDERS; PHASE;
D O I
10.1016/j.apsusc.2012.12.094
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Polymer-based nanocomposites provided with inorganic cores were simultaneously manufactured by the single-step laser pyrolysis. A comparative study was performed on two types of nanocomposites, starting from two different systems: TiO2/methyl methacrylate (MMA) and TiO2/Fe/hexamethyl disiloxane (HMDSO) polymer. The reactive mixture contained TiCl4 as Ti precursor and alternatively, Fe(CO)(5) (in case of TiO2/Fe mixture). The analytical techniques used for the characterization indicate distinct morphologies for the obtained nanostructures. Polyhedral and almost spherical nanoparticles in a coalescent matrix and very rare individual core-shell particles are noticed for the TiO2/MMA nanocomposites. Instead, nanoparticles presenting core-shell structures were often present in the TiO2/Fe/HMDSO polymeric nanocomposites. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:305 / 312
页数:8
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