Photodegradation and biodegradation of poly(lactic) acid containing orotic acid as a nucleation agent

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523416" target="_blank" >RIV/70883521:28110/19:63523416 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/12/3/481" target="_blank" >https://www.mdpi.com/1996-1944/12/3/481</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12030481" target="_blank" >10.3390/ma12030481</a>

Result language

angličtina

Original language name

Photodegradation and biodegradation of poly(lactic) acid containing orotic acid as a nucleation agent

Original language description

Orotic acid is a natural heterocyclic compound that acts as a nucleation agent in poly(lactic acid) (PLA). PLA materials with increasing orotic acid content were prepared and characterized. It was found that crystallinity of about 28% was reached with 0.3% content of the agent. Further enhancement in the content of the agent did not provoke any additional significant increase of crystallinity. Subsequently, it was investigated whether the orotic acid content affected photodegradation of PLA and, in the next phase, its biodegradation. The results of rheological measurements showed that the compound slightly accelerates photodegradation of the material, which was accompanied by the cleavage of PLA chains. Previous photodegradation was shown to accelerate the subsequent biodegradation by shortening the lag phase of the process, where the explanation is probably in the reduction of the polymer molecular weight during the photodegradation. Moreover, the presence of orotic acid in both initial and photodegraded samples was found to influence biodegradation positively by shortening the lag phase and increasing the observed maximal rate of the biodegradation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

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UT code for WoS article

000460768000150

EID of the result in the Scopus database

2-s2.0-85061092181