Flexible polyvinyl alcohol/2-hydroxypropanoic acid films: effect of residual acetyl moieties on mechanical, thermal and antibacterial properties
-
Martina Hrabalikova
,
Pavel Valasek
Abstract
This work ascertains the effect of the degree of hydrolysis of polyvinyl alcohol under extended interaction with 2-hydroxypropanoic acid (lactic acid). Systems based on three different types of polyvinyl alcohol matrices (of hydrolysis degree 80, 88 and 98 mol%) and lactic acid were characterized according to their physicochemical, mechanical and thermal properties. An agar diffusion test and the dilution and spread plate technique were conducted to facilitate antibacterial activity to counteract Staphylococcus aureus and Escherichia coli. A mathematical model was applied to the experimental data to estimate the antibacterial efficacy of the resultant flexible films.
Acknowledgments
This article was written with the support of Operational Program Research and Development for Innovations co-funded by the EDF and national budget of Czech Republic, within the framework of the project Centre of Polymer Systems (reg. number: CZ.1.05.2.1.00/03.0111) and of Operational Program Education for Competitiveness co-funded by the European Social Fund (ESF) and the national budget of Czech Republic, within the framework of the project Advance Theoretical and Experimental Studies of Polymer Systems (reg. number: CZ.1.07/2.3.00/20.0104). This work was also co-funded by a project of the Ministry of Agriculture of the Czech Republic: The National Agency for Agriculture Research (Grant No. QJ1310254), the Ministry of Education, Youth and Sports of the Czech Republic (projects LE12002) and the Internal Grant Agency of Tomas Bata University in Zlín (Grant No. IGA/FT/2014/012).
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©2015 by De Gruyter
Articles in the same Issue
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- Synthesis and characterization of silver cluster particles in hydrogels
- Alginate liquid core capsule formation using the simple extrusion dripping method
- Flexible polyvinyl alcohol/2-hydroxypropanoic acid films: effect of residual acetyl moieties on mechanical, thermal and antibacterial properties
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Articles in the same Issue
- Frontmatter
- Original articles
- Synthesis and characterization of silver cluster particles in hydrogels
- Alginate liquid core capsule formation using the simple extrusion dripping method
- Flexible polyvinyl alcohol/2-hydroxypropanoic acid films: effect of residual acetyl moieties on mechanical, thermal and antibacterial properties
- On the role of multi-functional polyhedral oligomeric silsesquioxane in polystyrene-zinc oxide nanocomposites
- Influence of the physicochemical environment on membrane-protein binding: investigation using a fabricated PVDF membrane
- Effect of liquid butadiene rubber on mechanical properties of polyamide 11/polyamide 12 blends
- Modification on chemical and optical properties of PADC polymer by ArF laser (193 nm) irradiation
- Thermal, mechanical and tribological properties of polyamide 6 matrix composites containing different carbon nanofillers
- Mechanical properties of PVDF-coated fabric under tensile tests
- Implementations of the Taguchi design for the erosive wear of Luffa cylindrica fiber-reinforced epoxy hybrid composite
- Development of a green material for horticulture
