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Antimicrobial materials based on poly(ethylene‐ co ‐vinyl alcohol) and silver acetate produced by reactive extrusion
Author(s) -
Paillot Pierrick,
Farhat Wissam,
Becquart Frédéric,
Vera Ruben,
Jegat Corinne,
Taha Mohamed
Publication year - 2019
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.47799
Subject(s) - vinyl alcohol , extrusion , reactive extrusion , materials science , ethylene vinyl acetate , antimicrobial , vinyl acetate , polymer , polymer chemistry , solvent , silver acetate , alcohol , ethyl acetate , chemical engineering , organic chemistry , chemistry , composite material , copolymer , engineering
The use of silver as an antimicrobial agent has exhibited great interest in recent years. In this research, poly(ethylene‐co‐vinyl alcohol) (EVOH)–silver acetate‐based antimicrobial materials were prepared at high temperature by reactive extrusion. Silver acetates were used without pretreatment. The thermal reaction of silver acetates in the material and their effect on the thermal and mechanical properties of the polymer were investigated as a function of their concentration. The dispersed silver acetate salts within the EVOH matrix have displayed a significant thermal reaction. This reaction of metallic salts was partial when the extrusion temperature was fixed at 190 °C and completed at 230 °C. The antimicrobial agents also had significant effects on the properties of the matrix. Reductions of glass temperature and storage modulus were observed by the analyses. All the variations were dependent on both the concentration of silver acetate and the extrusion parameters. The antimicrobial activity was studied and demonstrated a promising potential to create an antimicrobial material in a one‐step solvent free extrusion method. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47799.