Study of the Thermomechanical Properties of Photocured Resins Based on Curable Monomers from PLA and PHB for SLA 3D Printing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU149969" target="_blank" >RIV/00216305:26310/23:PU149969 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsapm.3c01730" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.3c01730</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsapm.3c01730" target="_blank" >10.1021/acsapm.3c01730</a>
Alternative languages
Result language
angličtina
Original language name
Study of the Thermomechanical Properties of Photocured Resins Based on Curable Monomers from PLA and PHB for SLA 3D Printing
Original language description
Biobased curable structures were synthesized from polymers poly(lactic acid) (PLA) and poly(3-hydroxybutyrate) (PHB). The curability of synthesized products and their thermomechanical properties were studied using numerous methods: FT-IR, DSC, DMA, or TGA. The reactivity of all methacrylated esters of lactic and 3-hydroxybutanoic acid was studied via DSC, and the results confirmed that all structures could be cured. The highest activation energy (E-a) was calculated for methacrylated methyl lactate, reaching 134.3 kJ<middle dot>mol(-1). It was also found that all calculated activation energies had very similar values. Infrared spectroscopy was used for the study of the degrees of cure. Curable alkyl lactates exhibited significantly higher degrees of cure (approximately 95% or more) than curable 3-hydroxybutarytes (around 70%). DMA analysis confirmed that methacrylated lactates showed higher glass transition temperatures (67.1 and 49.4 degrees C) and storage modulus values at 40 degrees C (1840 and 1110 MPa) compared to methacrylated 3-hydroxybutyrates (T-g of 44.4 degrees C and lower, and storage modules E ' around 600 MPa). The heat-resistant index calculated for all products proved the same trend: curable lactates exhibited higher heat resistivity (T-S of 148.0 and 146.3) than curable 3-hydroxybutyrates (T-S of 129.9 and 125.1). Synthesized and studied precursors can serve their particular purposes in fields of curable systems, and the application potential was performed via SLA 3D printing.
Czech name
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Czech description
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Classification
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
20501 - Materials engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS APPLIED POLYMER MATERIALS
ISSN
2637-6105
e-ISSN
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Volume of the periodical
5
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
9909-9917
UT code for WoS article
001121903900001
EID of the result in the Scopus database
2-s2.0-85178351046