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Preparation of breathable polyurethane membranes with quaternary ammonium salt diols providing durable antibacterial property
- Publication Year :
- 2018
- Publisher :
- Wiley, 2018.
-
Abstract
- Aim of this study was to produce hydrophilic breathable polyurethane membranes providing antibacterial property permanently by incorporation of a quaternary ammonium salt diol (QAS). The study was carried out by synthesis of nine different polyurethanes by solution polymerization through variations of their QAS and isocyanate contents. Fully amorphous membranes at a thickness of 30m were produced from the synthesized polymers and their thermal and morphological characteristics were determined. The effect of morphological structures on the membrane water vapor transmission rates (WVTR) and antibacterial properties were correlated. The WVTR increased with the increased temperature in all membranes over 10-40 degrees C, all produced membranes showed water resistance up to a pressure of 2100 cmH2O and WVTR values above 60g/m(2) h at 30 degrees C. The WVTR increased by increasing amount of QAS including cationic groups and decreased by increasing isocyanate amount reducing the molecular chain flexibility. In addition, while the unmodified membranes did not show any antibacterial activity, the QAS-added membranes provided significant inactivation against Staphylococcus aureus and Escherichia coli of about 104CFU within 5h of contact time. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47133.
- Subjects :
- Mass-transfer properties
Polyurethane
Segmented polyurethane
Materials science
Polymers and Plastics
Fabrics
Polyurethanes
Salt (chemistry)
02 engineering and technology
Structure-property relationships
010402 general chemistry
Solution polymerization
01 natural sciences
Permeability
Antibacterial properties
chemistry.chemical_compound
Coatings
Morphological structures
Materials Chemistry
Escherichia coli
Organic chemistry
Ammonium
Water vapor transmission rate
Antibacterial property
chemistry.chemical_classification
Membranes
Textiles
Water
Vapor
Polyurethane membranes
General Chemistry
021001 nanoscience & nanotechnology
Anti-bacterial activity
0104 chemical sciences
Surfaces, Coatings and Films
Surface
Membrane
Morphological characteristic
Polyurethan
Urethane Acrylate
Acrylic Acid
chemistry
Salts
Structural-characterization
Quaternary ammonium salt
0210 nano-technology
Polymer science
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....2fe9021f8cfd320d74711bc89d194a57