Evidence map›Paper›PMID 42797219›Full record

ArticlePolymers2026

Raman Evaluation of the Crystallinity Degree of Star-Shaped Lactide Oligomers: An Influence of the Number, Length and Enantiomeric Composition of the Arms.

Alyona N Bortsova, Liudmila Yu Kozlova, Sergey M Kuznetsov, Alexander A Puchkov, Sergei O Liubimovskii, Artem V Bakirov, Nikita G Sedush, Sergey N Chvalun, Maksim N Moskovskiy, Gulnara Yu Nikolaeva and 4 more

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Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

14 authors.

Alyona N BortsovaProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.
Liudmila Yu KozlovaProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0009-0002-5932-3106
Sergey M KuznetsovProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0000-0002-8378-7085
Alexander A PuchkovEnikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, 117393 Moscow, Russia.ORCID 0000-0002-9055-3121
Sergei O LiubimovskiiProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0000-0002-9332-4359
Artem V BakirovEnikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, 117393 Moscow, Russia.ORCID 0000-0003-0798-2791
Nikita G SedushEnikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, 117393 Moscow, Russia.ORCID 0000-0002-6744-7662
Sergey N ChvalunEnikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, 117393 Moscow, Russia.ORCID 0000-0001-9405-4509
Maksim N MoskovskiyFederal Scientific Agroengineering Center VIM, 109428 Moscow, Russia.ORCID 0000-0001-5727-8706
Gulnara Yu NikolaevaProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0000-0001-5979-9126
Sergey V GudkovProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0000-0002-8814-6906
Alexey S DorokhovFederal Scientific Agroengineering Center VIM, 109428 Moscow, Russia.
Andrey Yu IzmailovFederal Scientific Agroengineering Center VIM, 109428 Moscow, Russia.
Vasiliy S NovikovProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia.ORCID 0000-0002-3304-1568

Funding

Ministry of Science and Higher Education of the Russian Federation 075-15-2024-540
6 · The paper itself

Abstract

The control of structure-dependent properties of materials widely applied in the manufacture of medical products is extremely important. The purpose of this study was the Raman evaluation of the crystallinity degree (CD) of star-shaped L-lactide (L-LA) and D,L-lactide (D,L-LA) oligomers with different structures of arms. Raman spectroscopy was applied for the first time to analyze the structure of these oligomers. They differed in the number of arms (three or six) and the degree of polymerization (DP) of each arm (about 25 or 100). L-LA oligomers were studied in two forms: semicrystalline and amorphous. It was shown that the Raman method for evaluation of the CD, previously proposed for pure L-polylactide (L-PLA), linear L-LA oligomers, and L-LA copolymers with ε-caprolactone (CL), is applicable to the star-shaped L-LA oligomers. The CD values of the star-shaped L-LA oligomers evaluated by Raman spectroscopy and X-ray diffraction analysis were in a good agreement. Raman analysis showed that the CD of star-shaped L-LA oligomers increased with decreasing arm number and increasing arm length. These results demonstrate that Raman spectroscopy is an effective tool for monitoring the CD of star-shaped L-LA oligomers, including operative control of CD during annealing.

Indexed as

branched oligomerscrystallinity degreelactidemolecular architecturepolylactideRaman spectroscopystar-shaped oligomers

Identifiers

PMID42797219
PMCPMC13611012

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