Please use this identifier to cite or link to this item:

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
PublisherRoyal 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).
Publisher version
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
  Restricted access
1,55 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID