Highly hydrophobic biopolymers prepared by the surface pentafluorobenzoylation of cellulose substrates
authors Cunha, AG; Freire, CSR; Silvestre, AJD; Neto, CP; Gandini, A; Orblin, E; Fardim, P
nationality International
journal BIOMACROMOLECULES
keywords COMPOSITE-MATERIALS; FATTY-ACIDS; FIBERS; ESTERS; DERIVATIVES; ESTERIFICATION; PAPER
abstract New highly hydrophobic/lipophobic biopolymers were prepared by the controlled heterogeneous pentafluorobenzoylation of cellulose substrates, i.e., plant and bacterial cellulose fibers. The characterization of the modified fibers was performed by elemental analysis, FTIR spectroscopy, X-ray diffraction, thermogravimetry, and surface analysis (XPS, ToF-SIMS, and contact angle measurements). The degree of substitution of the ensuing pentafluorobenzoylated fibers ranged from 0.014 to 0.39. The hydrolytic stability of these perfluorinated cellulose derivatives was also evaluated and showed that they were quite water stable, although of course the fluorinated moieties could readily be removed by hydrolysis in an aqueous alkaline medium.
publisher AMER CHEMICAL SOC
issn 1525-7797
year published 2007
volume 8
issue 4
beginning page 1347
ending page 1352
digital object identifier (doi) 10.1021/bm0700136
web of science category Biochemistry & Molecular Biology; Chemistry, Organic; Polymer Science
subject category Biochemistry & Molecular Biology; Chemistry; Polymer Science
unique article identifier WOS:000245510100040
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 6.092
5 year journal impact factor 5.775
category normalized journal impact factor percentile 92.195
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg