Construction of ferrocene-containing nanomaterials via self-assembly of ferrocenyl hyperbranched polyethyleneстатья
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Дата последнего поиска статьи во внешних источниках: 24 октября 2018 г.
Аннотация:Self-assembly of ferrocene-containing copolymers has been proved to be a convenient way to construct various functional nanomaterials. Thus, (hyperbranched polyethylene)-grafted-(poly(2-(meth- acryloyloxy)-ethyl ferrocenecarboxylate)) (HBPE-g-PFcEMA) was synthesized. It's self-assembly proper- ties in the THF/n-hexane solvent mixture and n-hexane were explored. In the THF/n-hexane solvent mixture, spherical micelles were obtained at low concentration of HBPE-g-PFcEMA. However, at higher concentration, only irregular nanoparticles were observed. In contrast, the HBPE-g-PFcEMA micelles prepared in n-hexane by solvent diffusion method were with well-defined structures whether at low or high concentration of HBPE-g-PFcEMA. Furthermore, the nanostructures of these assemblies in n-hexane could be controlled to be sheet, hollow or patchy sphere simply by adjusting the concentration of HBPE- g-PFcEMA. Therefore, a novel and convenient way was provided to construct ferrocene-containing nanomaterials with various nanostructures from the same ferrocenyl hyperbranched copolymer by controlling its concentration. These ferrocene-containing nanomaterials might find their application as precursor in preparing functional iron oxide nanomaterials.