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Plasma modification of cellulose derivatives as biomaterials
Author(s) -
PoncinEpaillard Fabienne,
Legeay Gilbert,
Brosse JeanClaude
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070440903
Subject(s) - cellulose , fluorocarbon , surface modification , plasma , cellulose acetate , grafting , radical , fluorine , chemical engineering , surface energy , chemistry , sulfur hexafluoride , membrane , polymer chemistry , materials science , organic chemistry , biochemistry , physics , quantum mechanics , engineering , polymer
A film of cellulose acetate was submitted to a cold plasma of tetrafluoromethane or of sulfur hexafluoride. The interactions of these cold plasmas and cellulose acetate lead to a material whose surface has been modified by fluorination. Comparison of CF 4 or SF 6 plasma treatment shows that fluorine atoms provided by each kind of plasma induce degradation and grafting of fluorocarbon radicals on the surface. As a consequence, the surface energy decreases and offers the possibility of a better response of plasma‐modified cellulose derivatives used as biomaterials (e.g. hemodialysis membrane).