{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["11(5)"],"submitter":["Weidner SM"],"pubmed_abstract":["Cyclic polylactides were prepared in bulk at 170 °C, crystallized at 120 °C and then annealed at temperatures between 130 and 170 °C with variation of catalyst, catalyst concentration and annealing time. The transformation of the initially formed low melting (L<i>T</i> <sub>m</sub>) crystallites, having melting temperatures (<i>T</i> <sub>m</sub>) < 180 °C into high melting (H<i>T</i> <sub>m</sub>) crystallites having <i>T</i> <sub>m</sub> values > 189 °C was monitored by means of DSC measurements and characterized in selected cases by SAXS measurements. It was confirmed that the formation of H<i>T</i> <sub>m</sub> crystallites involves a significant growth of the thickness of the lamellar crystallites along with smoothing of their surface. Annealing at 170 °C for 1 d or longer causes ther"],"journal":["RSC advances"],"pagination":["2872-2883"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8693987"],"repository":["biostudies-literature"],"pubmed_title":["About the transformation of low <i>T</i> <sub>m</sub> into high <i>T</i> <sub>m</sub> poly(l-lactide)s by annealing under the influence of transesterification catalysts."],"pmcid":["PMC8693987"],"pubmed_authors":["Weidner SM","Chatti S","Kricheldorf HR","Meyer A"],"additional_accession":[]},"is_claimable":false,"name":"About the transformation of low <i>T</i> <sub>m</sub> into high <i>T</i> <sub>m</sub> poly(l-lactide)s by annealing under the influence of transesterification catalysts.","description":"Cyclic polylactides were prepared in bulk at 170 °C, crystallized at 120 °C and then annealed at temperatures between 130 and 170 °C with variation of catalyst, catalyst concentration and annealing time. The transformation of the initially formed low melting (L<i>T</i> <sub>m</sub>) crystallites, having melting temperatures (<i>T</i> <sub>m</sub>) < 180 °C into high melting (H<i>T</i> <sub>m</sub>) crystallites having <i>T</i> <sub>m</sub> values > 189 °C was monitored by means of DSC measurements and characterized in selected cases by SAXS measurements. It was confirmed that the formation of H<i>T</i> <sub>m</sub> crystallites involves a significant growth of the thickness of the lamellar crystallites along with smoothing of their surface. Annealing at 170 °C for 1 d or longer causes ther","dates":{"release":"2021-01-01T00:00:00Z","publication":"2021 Jan","modification":"2025-04-25T22:54:26.818Z","creation":"2025-04-06T09:14:35.425Z"},"accession":"S-EPMC8693987","cross_references":{"pubmed":["35424240"],"doi":["10.1039/d0ra10012a"]}}