Changes in the thermal and structural properties of polylactide and its composites during a long-term degradation process

Císař, Jaroslav; Pummerová, Martina; Dröhsler, Petra; Masař, Milan; Sedlařík, Vladimír

dc.title	Changes in the thermal and structural properties of polylactide and its composites during a long-term degradation process	en
dc.contributor.author	Císař, Jaroslav
dc.contributor.author	Pummerová, Martina
dc.contributor.author	Dröhsler, Petra
dc.contributor.author	Masař, Milan
dc.contributor.author	Sedlařík, Vladimír
dc.relation.ispartof	Polymers
dc.identifier.issn	2073-4360 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued	2025
utb.relation.volume	17
utb.relation.issue	10
dc.type	article
dc.language.iso	en
dc.publisher	Multidisciplinary Digital Publishing Institute (MDPI)
dc.identifier.doi	10.3390/polym17101326
dc.relation.uri	https://www.mdpi.com/2073-4360/17/10/1326
dc.relation.uri	https://www.mdpi.com/2073-4360/17/10/1326/pdf?version=1747142527
dc.subject	polylactide	en
dc.subject	polymer composite	en
dc.subject	calcium carbonate	en
dc.subject	plasticizer	en
dc.subject	hydrolysis	en
dc.subject	crystallinity	en
dc.description.abstract	As a polymer degrades, its structure changes, and the course of composting also affects the rate and degree of decomposition. Moreover, the potential exists for the formation of microplastics. This work focuses on the investigation of the long-term hydrolytic degradation of PLA-based composites at different temperatures (50, 55, and 60 °C, respectively). Samples were prepared on semi-industrial equipment, simulating actual production conditions. The effect of the degradation temperature on molecular weight was studied by gel permeation chromatography. Variation in the thermal properties and crystallinity of the PLA and its composites was investigated using differential scanning calorimetry and thermal gravimetric analysis. Mass loss during hydrolytic degradation was assessed using the gravimetric technique, and confirmation of microplastic residues in the hydrolyzed samples was evaluated using Fourier-transform infrared spectroscopy.	en
utb.faculty	University Institute
dc.identifier.uri	http://hdl.handle.net/10563/1012463
utb.identifier.scopus	2-s2.0-105006737335
utb.identifier.wok	001495640500001
utb.identifier.pubmed	40430622
utb.source	j-scopus
dc.date.accessioned	2025-06-28T13:04:57Z
dc.date.available	2025-06-28T13:04:57Z
dc.description.sponsorship	European Just Transition Fund; Ministerstvo Školství, Mládeže a Tělovýchovy, MSMT; Ministerstvo Životního Prostředí, MoE, (RP/CPS/2024-28/007, CZ.02.01.01/00/23_021/0009004, RP/CPS/2024-28/002, CZ.10.03.01/00/22_003/0000045); Ministerstvo Životního Prostředí, MoE; Technology Agency of the Czech Republic, TACR, (TQ03000235); Technology Agency of the Czech Republic, TACR
dc.description.sponsorship	European Just Transition Fund within the Operational Programme: Just Transition under the aegis of the Ministry of the Environment of the Czech Republic; Operational Programme Johannes Amos Comenius OP JAC "Application potential development in the field of polymer materials in the context of circular economy compliance (POCEK)"; Development process of Centre of Polymer Systems, Tomas Bata University in Zlin, program DKRVO [RP/CPS/2024-28/002, RP/CPS/2024-28/007]; Ministry of Education Youth and Sports of the Czech Republic; Technology Agency of the Czech Republic [TQ03000235]; [CZ.10.03.01/00/22_003/0000045]; [CZ.02.01.01/00/23_021/0009004]
dc.rights	Attribution 4.0 International
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
dc.rights.access	openAccess
utb.ou	Centre of Polymer Systems
utb.contributor.internalauthor	Císař, Jaroslav
utb.contributor.internalauthor	Pummerová, Martina
utb.contributor.internalauthor	Dröhsler, Petra
utb.contributor.internalauthor	Masař, Milan
utb.contributor.internalauthor	Sedlařík, Vladimír
utb.fulltext.affiliation	Jaroslav Cisar, Martina Pummerova * , Petra Drohsler , Milan Masar and Vladimir Sedlarik * Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760-01 Zlín, Czech Republic; jcisar@utb.cz (J.C.); pvalkova@utb.cz (P.D.); masar@utb.cz (M.M.) * Correspondence: pummerova@utb.cz (M.P.); sedlarik@utb.cz (V.S.); Tel.: +420-576-031-740 (M.P.); +420-576-038-013 (V.S.)
utb.fulltext.dates	Received: 28 March 2025 Revised: 5 May 2025 Accepted: 10 May 2025 Published: 13 May 2025
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utb.fulltext.sponsorship	This work was supported by the European Just Transition Fund within the Operational Programme: Just Transition under the aegis of the Ministry of the Environment of the Czech Republic, project CirkArena number CZ.10.03.01/00/22_003/0000045; Operational Programme Johannes Amos Comenius OP JAC “Application potential development in the field of polymer materials in the context of circular economy compliance (POCEK)”, number CZ.02.01.01/00/23_021/0009004; and the development process of Centre of Polymer Systems, Tomas Bata University in Zlín, program DKRVO (RP/CPS/2024-28/002 and RP/CPS/2024-28/007); and the Ministry of Education Youth and Sports of the Czech Republic. The authors are further grateful for co-funding from the Technology Agency of the Czech Republic (project no. TQ03000235).
utb.wos.affiliation	[Cisar, Jaroslav; Pummerova, Martina; Drohsler, Petra; Masar, Milan; Sedlarik, Vladimir] Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Trida Tomase Bati 5678, Zlin 76001, Czech Republic
utb.scopus.affiliation	Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, 760-01, Czech Republic
utb.fulltext.projects	CZ.10.03.01/00/22_003/0000045
utb.fulltext.projects	CZ.02.01.01/00/23_021/0009004
utb.fulltext.projects	DKRVO (RP/CPS/2024-28/002)
utb.fulltext.projects	DKRVO (RP/CPS/2024-28/007)
utb.fulltext.projects	TQ03000235
utb.fulltext.faculty	University Institute
utb.fulltext.faculty	University Institute
utb.fulltext.faculty	University Institute
utb.fulltext.faculty	University Institute
utb.fulltext.faculty	University Institute
utb.fulltext.ou	Centre of Polymer Systems
utb.fulltext.ou	Centre of Polymer Systems
utb.fulltext.ou	Centre of Polymer Systems
utb.fulltext.ou	Centre of Polymer Systems
utb.fulltext.ou	Centre of Polymer Systems