Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/44725

TitleJute hydrophobization via laccase-catalyzed grafting of fluorophenol and fluoroamine
Author(s)Wu, Huimin
Noro, Jennifer
Wang, Qiang
Fan, Xuerong
Silva, Carla
Cavaco-Paulo, Artur
Issue date2016
PublisherThe Royal Society of Chemistry
JournalRSC Advances
CitationWu, Huimin; Noro, Jennifer; Wang, Qiang; Fan, Xuerong; Silva, Carla; Cavaco-Paulo, Artur, Jute hydrophobization via laccase-catalyzed grafting of fluorophenol and fluoroamine. RSC Advances, 6(93), 90427-90434, 2016
Abstract(s)Two fluorinated monomers, 4-[4-(trifluoromethyl)phenoxy]phenol (TFMPP) and 1H,1H-perfluorononylamine (PFNL), were efficiently grafted onto the exposed lignin of jute's surface by a laccase mediated reaction. Their grafting onto the lignin-exposed jute was demonstrated by Fourier transform infrared-attenuated total reflection spectroscopy (FTIR-ATR), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The coupling of fluorophenol and fluoramine onto a complex lignin model compound (2-methoxy-4-propylphenol) (MP) was confirmed by nuclear magnetic resonance (1H NMR). Laccase-catalyzed grafting of both fluorinated monomers led to 41.94% and 46.35% increase in contact angle for TFMPP and PFNL, respectively. An oil static contact angle of 117.16[degree] and oil wetting time values higher than 30 min obtained for PFNL-grafted jute also demonstrated the oleophobic behavior of jute samples after laccase-mediated oxidation. The laccase-related oxidation and formation of homopolymers and copolymers was also confirmed by UV-visible spectra of treatment solutions supernatant in the UV-visible region (200-700 nm).
TypeArticle
URIhttp://hdl.handle.net/1822/44725
DOI10.1039/C6RA17687A
ISSN2046-2069
e-ISSN2046-2069
Publisher versionhttp://pubs.rsc.org/en/journals/journalissues/ra
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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