Evidence map›Paper›PMID 38611243›Full record

ArticlePolymers2024

Evaluation and Modeling of Polylactide Photodegradation under Ultraviolet Irradiation: Bio-Based Polyester Photolysis Mechanism.

Sergey Lomakin, Yurii Mikheev, Sergey Usachev, Svetlana Rogovina, Lubov Zhorina, Evgeniya Perepelitsina, Irina Levina, Olga Kuznetsova, Natalia Shilkina, Alexey Iordanskii and 1 more

Open access · goldAbstract read
In one paragraph

Article in Polymers, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Sergey LomakinN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.ORCID 0000-0003-3191-8415
Yurii MikheevEmanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia.
Sergey UsachevN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Svetlana RogovinaN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Lubov ZhorinaN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Evgeniya PerepelitsinaFederal State Research Center for Chemical Physics and Medical Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Russia.
Irina LevinaEmanuel Institute of Biochemical Physics, Russian Academy of Sciences, 119334 Moscow, Russia.
Olga KuznetsovaN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Natalia ShilkinaN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Alexey IordanskiiN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.ORCID 0000-0003-0771-0825
Alexander BerlinN. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia.
Semenov Institute of Chemical Physics · RUInstitute of Biochemical Physics NM Emanuel · RURussian Academy of Sciences · RU

Funding

The Ministry of Education and Science of the Russian Federation contracts no. 122041300207-2, 122040400099-5 and АААА-А19-119041090087-4
6 · The paper itself

Abstract

In our study, we investigated the accelerated aging process of PLA under 253.7 nm UV-C irradiation with the use of the GPC, NMR, FTIR, and DSC methods and formal kinetic analysis. The results of GPC and DSC indicated a significant degree of destructive changes in the PLA macromolecules, while spectroscopic methods NMR and FTIR showed maintenance of the PLA main structural elements even after a long time of UV exposure. In addition to that, the GPC method displayed the formation of a high molecular weight fraction starting from 24 h of irradiation, and an increase in its content after 144 h of irradiation. It has been shown for the first time that a distinctive feature of prolonged UV exposure is the occurrence of intra- and intermolecular radical recombination reactions, leading to the formation of a high molecular weight fraction of PLA decomposition products. This causes the observed slowdown of the photolysis process. It was concluded that photolysis of PLA is a complex physicochemical process, the mechanism of which depends on morphological changes in the solid phase of the polymer under UV radiation.

Indexed as

Differential Scanning CalorimetryGel Permeation ChromatographyIR SpectroscopykineticsNMR SpectroscopypolylactideUV radiation

Identifiers

PMID38611243
PMCPMC11013448
OpenAlexW4393948952

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.