Chemical transformation of lignosulfonates to lignosulfonamides with improved thermal characteristics
Authors:
- Karolina Komisarz,
- Tomasz M. Majka,
- Krzysztof Pielichowski
Abstract
Lignin is an abundantly occurring aromatic biopolymer that receives increasing attention as, e.g., a biofiller in polymer composites. Though its structure depends on the plant source, it is a valuable component showing biodegradability, antioxidant, and ultra-violet (UV) absorption properties. Lignosulfonates, a by-product of the paper and pulping industries formed as a result of the implementation of the sulfite process, have been used in the presented study as a raw material to obtain a sulfonamide derivative of lignin. Hereby, a two-step modification procedure is described. The obtained materials were investigated by means of FTIR, WAXD, SS-NMR, SEM, and TGA; the results of spectroscopic investigations confirm the formation of a sulfonamide derivative of lignin via the proposed modification method. The obtained modified lignin materials showed significantly improved thermal stability in comparison with the raw material. The internal structure of the lignosulfonate was not altered during the modification process, with only slight changes of the morphology, as confirmed by the WAXD and SEM analyses. The manufactured sulfonamide lignin derivatives show great promise in the potential application as an antibacterial filler in advanced biopolymeric composites.
- Record ID
- CUT5d167b0f67ef4c0b98fcab3c9217abeb
- Publication categories
- ;
- Author
- Journal series
- Fibers, ISSN , e-ISSN 2079-6439, Monthly
- Issue year
- 2022
- Vol
- 10
- No
- 2
- Pages
- [1-13]
- Article number
- 20
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 12-13; Bibliografia (liczba pozycji) - 44; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 10, Iss. 2
- Keywords in English
- biocomposites, biopolymers, chemical modification, lignosulfonate, sulfonamides
- DOI
- DOI:10.3390/fib10020020 Opening in a new tab
- URL
- https://www.mdpi.com/2079-6439/10/2/20 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 70
- Score source
- journalList
- Score
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT5d167b0f67ef4c0b98fcab3c9217abeb/
- URN
urn:pkr-prod:CUT5d167b0f67ef4c0b98fcab3c9217abeb
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.