کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
692826 | 889854 | 2011 | 10 صفحه PDF | دانلود رایگان |
In this work antimicrobial polyurethane coatings were prepared aiming at self-stratification. A hydroxyl end-capped liquid oligoester consisting of three equimolar diacids and an excess of 1,4-butanediol has been synthesized by a condensation reaction. A set of quaternary ammonium compounds (QACs) which are well known contact killers, was synthesized via a straightforward quaternization reaction. These synthesized precursors were later covalently bonded to the polymer network by addition of a polyisocyanate crosslinker resulting in antimicrobial polyurethane coatings. Self-stratification was confirmed by dynamic contact angle analysis and X-ray photoelectron spectroscopy. The final films showed strong antimicrobial activity against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli type bacteria.
► Antimicrobial polyurethane coatings are prepared via a self-stratification approach.
► QACs covalently attached to the polymer network are used as antimicrobial species.
► Films show strong antimicrobial activity against S. aureus and E. coli type bacteria.
Journal: Progress in Organic Coatings - Volume 72, Issue 3, November 2011, Pages 305–314