Flexible polyvinyl alcohol/2-hydroxypropanoic acid films: effect of residual acetyl moieties on mechanical, thermal and antibacterial properties
- Resource Type
- Authors
- Vladimir Sedlarik; Martina Hrabalikova; Pavel Valášek; Solongo Ganbold; Petr Saha; Martha Merchan
- Source
- Journal of Polymer Engineering. 35:319-327
- Subject
- Czech
Engineering
Polymers and Plastics
business.industry
General Chemical Engineering
Environmental engineering
Accounting
European Social Fund
language.human_language
Materials Chemistry
language
Christian ministry
business
National budget
2-Hydroxypropanoic Acid
- Language
- ISSN
- 2191-0340
0334-6447
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.