Analysis of Selected Properties of Microporous PLA as a Result of Abiotic Degradation

Autor:	Aneta Tor-Świątek, Tomasz Garbacz, Petr Stloukal
Rok vydání:	2022
Předmět:	blowing agent polylactide microporous extrusion process thermal behavior General Materials Science
Zdroj:	Materials Materials; Volume 15; Issue 9; Pages: 3133
ISSN:	1996-1944
DOI:	10.3390/ma15093133
Popis:	In the study, an investigation was made into the hydrolytic degradation behavior of the microporous polylactide (PLA) in the initial stage in three biological buffer solutions with various pH-simulating body fluids in comparison with pure PLA. Studies also include the analysis of selected mechanical properties and physical structures. A microporous PLA was obtained by melt extrusion using a chemical blowing agent. The rate of Mw decrease induced by hydrolysis over 35 days of microporous PLA was roughly comparable to the pure material. The rate of depolymerization was slightly accelerated at an acid pH due to acid-catalyzed hydrolysis at the end of the observed period. The mechanical analysis showed the influence of various pH on the obtained results. Ministerstwo Edukacji i Nauki, MNiSW: 030/RID/2018/19 project Lublin University of Technology-Regional Excellence Initiative - Polish Ministry of Science and Higher Education [030/RID/2018/19]
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b718c53974fb1f6da0e59282d6e046c https://doi.org/10.3390/ma15093133 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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