Application of green solvents as a replacement of toxic dimethylformamide in the polylactic acid electrospinning process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63594780" target="_blank" >RIV/70883521:28610/25:63594780 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2214993725001733" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214993725001733</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.susmat.2025.e01405" target="_blank" >10.1016/j.susmat.2025.e01405</a>

Result language
angličtina
Original language name
Application of green solvents as a replacement of toxic dimethylformamide in the polylactic acid electrospinning process
Original language description
Nanofibres based on polylactic acid (PLA) have a wide range of applications, including air filtration. They are prepared by electrospinning using toxic solvents as dimethylformamide. This study focused on the use of green solvents to prepare electrospinnable solutions. It was found that a combination of solvents is necessary. A nozzle electrospinning technique was applied to produce PLA nanofibres from optimised dual (ethyl or methyl lactate with acetone) or ternary (cyclopentanone, acetone and ethyl or methyl lactate) solvent system. The prepared nanofibres were evaluated for morphology and quality of nanofibres (SEM), surface wettability (contact angle), filtration properties (automated filter tester) and pore size and distribution (porometry). Potential changes in the chemical composition and the presence of residual solvent were investigated by FTIR, TGA and headspace analysis. It was found that green solvents can substitute dimethylformamide; especially combination of cyclopentanone/ethyl lactate/acetone provides air filtration properties comparable to dimethylformamide/acetonebased systems.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)

Project
<a href="/en/project/EH23_021%2F0009004" target="_blank" >EH23_021/0009004: Application potential development in the field of polymer materials in the context of circular economy compliance (POCEK)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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