Biobased Films from Amphiphilic Lignin-Graft-PLGA Copolymer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F23%3A43923995" target="_blank" >RIV/62156489:43210/23:43923995 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.15376/biores.18.3.5887-5907" target="_blank" >https://doi.org/10.15376/biores.18.3.5887-5907</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15376/biores.18.3.5887-5907" target="_blank" >10.15376/biores.18.3.5887-5907</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biobased Films from Amphiphilic Lignin-Graft-PLGA Copolymer

Popis výsledku v původním jazyce

Amphiphilic copolymers were synthesized by grafting poly(lactic-coglycolic) acid with two lignin types: alkaline lignin and lignosulfonate. An interphase formation technique was used to produce films based on the copolymers. Films presented one side as being more hydrophobic (Oside) and smoother, and the second side more polar and with an uneven surface (W-side). Contact angle of water on the W-side was lower than the O-side corresponding to a higher lignin content and influenced by the lignin type (alkaline &lt; lignosulfonate) and lignin: PLGA ratio. X-ray photoelectric spectroscopy analysis showed higher percentages of sulfur on the W-side, which supports a preferential partitioning of the lignin. Tensile testing demonstrated the significant impact of lignin type on the mechanical properties of the films. Alkaline films showed a higher maximum strength, a higher stiffness, and a higher tensile strength at the elastic limit compared to lignosulfonate films. However, for lignosulfonate films, ductility at break point was 4-fold higher than that of alkaline films.

Název v anglickém jazyce

Biobased Films from Amphiphilic Lignin-Graft-PLGA Copolymer

Popis výsledku anglicky

Amphiphilic copolymers were synthesized by grafting poly(lactic-coglycolic) acid with two lignin types: alkaline lignin and lignosulfonate. An interphase formation technique was used to produce films based on the copolymers. Films presented one side as being more hydrophobic (Oside) and smoother, and the second side more polar and with an uneven surface (W-side). Contact angle of water on the W-side was lower than the O-side corresponding to a higher lignin content and influenced by the lignin type (alkaline &lt; lignosulfonate) and lignin: PLGA ratio. X-ray photoelectric spectroscopy analysis showed higher percentages of sulfur on the W-side, which supports a preferential partitioning of the lignin. Tensile testing demonstrated the significant impact of lignin type on the mechanical properties of the films. Alkaline films showed a higher maximum strength, a higher stiffness, and a higher tensile strength at the elastic limit compared to lignosulfonate films. However, for lignosulfonate films, ductility at break point was 4-fold higher than that of alkaline films.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

BioResources

ISSN

1930-2126

e-ISSN

1930-2126

Svazek periodika

18

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

5887-5907

Kód UT WoS článku

001050343200016

EID výsledku v databázi Scopus

2-s2.0-85175091687