Impact of solvolysis on the decomposition efficiency of poly(lactic acid) materials with insight into their non-uniform architecture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63593619" target="_blank" >RIV/70883521:28610/25:63593619 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/25:10506784

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0141813025010785?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0141813025010785?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2025.140529" target="_blank" >10.1016/j.ijbiomac.2025.140529</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of solvolysis on the decomposition efficiency of poly(lactic acid) materials with insight into their non-uniform architecture

Popis výsledku v původním jazyce

A more recent insight into the structural differences of sustainable poly(lactic acid)-based materials was revealed through a solvolysis reaction under environmentally friendly conditions. The decomposition process clarified the heterogeneous structure of the investigation polymers. It was found that materials used for nanofiber production degraded 25 % more poorly compared to materials suitable for packaging materials. The resultant product, ethyl lactate, demonstrated high purity and yield (up to 900 mg·L−1, 98 %). The degree and effect of decomposition of the poly(lactic acid) were monitored by employing the gel permeation chromatic method, differential scanning calorimetry and thermal gravimetric analysis. X-ray diffraction was conducted to assess differences between the crystalline portions of polymers. The yield and purity of the product were verified by gas and liquid chromatography. The kinetic studies evaluated the rate of polymers degradation connected with chemical structure and temperature. A structural difference was observed in the studied polylactides, with approximately a 15 % deviation in crystallinity. This observed variation resulted from differences in arrangement and chain lengths, as well as the terminal functional groups, leading to non-uniform degradation of both polymers. This study offers a new insight on the degradation efficiency of polymers highlights the non-uniformity of their structure. Converting biodegradable polymer waste into a suitable and reusable product as part of an environmentally friendly approach will contribute to the sustainability of polymer materials.

Název v anglickém jazyce

Impact of solvolysis on the decomposition efficiency of poly(lactic acid) materials with insight into their non-uniform architecture

Popis výsledku anglicky

A more recent insight into the structural differences of sustainable poly(lactic acid)-based materials was revealed through a solvolysis reaction under environmentally friendly conditions. The decomposition process clarified the heterogeneous structure of the investigation polymers. It was found that materials used for nanofiber production degraded 25 % more poorly compared to materials suitable for packaging materials. The resultant product, ethyl lactate, demonstrated high purity and yield (up to 900 mg·L−1, 98 %). The degree and effect of decomposition of the poly(lactic acid) were monitored by employing the gel permeation chromatic method, differential scanning calorimetry and thermal gravimetric analysis. X-ray diffraction was conducted to assess differences between the crystalline portions of polymers. The yield and purity of the product were verified by gas and liquid chromatography. The kinetic studies evaluated the rate of polymers degradation connected with chemical structure and temperature. A structural difference was observed in the studied polylactides, with approximately a 15 % deviation in crystallinity. This observed variation resulted from differences in arrangement and chain lengths, as well as the terminal functional groups, leading to non-uniform degradation of both polymers. This study offers a new insight on the degradation efficiency of polymers highlights the non-uniformity of their structure. Converting biodegradable polymer waste into a suitable and reusable product as part of an environmentally friendly approach will contribute to the sustainability of polymer materials.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/EH23_021%2F0009004" target="_blank" >EH23_021/0009004: Rozvoj aplikačního potenciálu v oblasti polymerních materiálů v kontextu naplňování principů cirkulární ekonomiky (POCEK)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

1879-0003

Svazek periodika

302

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

nestránkováno

Kód UT WoS článku

001422567300001

EID výsledku v databázi Scopus

2-s2.0-85216664613