A Critical Review of Sustainable Vanillin-modified Vitrimers: Synthesis, Challenge and Prospects

Reactions, Journal Year: 2023, Volume and Issue: 4(1), P. 66 - 91

Published: Jan. 2, 2023

Nearly 90% of thermosets are produced from petroleum resources, they have remarkable mechanical characteristics, chemically durable, and dimensionally stable. However, can contribute to global warming, depletion reserves, environmental contamination during manufacture, use, disposal. Using renewable resources form thermosetting materials is one the most crucial aspects addressing aforementioned issues. Vanillin-based raw been used in industrial manufacturing polymer because simple modify structurally. Conversely, traditional as a broad class high-molecular-weight molecules challenging heal, decompose recover owing their permanent 3-D crosslinking network. Once products damaged, recycling issues could arise, causing resource loss impact. It be solved by inserting dynamic covalent adaptable networks (DCANs) into chains, increasing product longevity, minimizing waste. also improves attractiveness these prospective field. Moreover, it essential underline that lifespan reducing waste equivalent expense consuming resources. The detailed synthesis, reprocessing, thermal, characteristics partly entirely biomass polymers made vanillin-modified monomers covered current work. Finally, review highlights benefits, difficulties, application emerging vitrimers potential replacement for conventional non-recyclable thermosets.

Language: Английский

---

Lignin to value-added products: Research updates and prospects

Bioresource Technology, Journal Year: 2023, Volume and Issue: 384, P. 129294 - 129294

Published: June 11, 2023

Language: Английский

---

Lignin Modification for Enhanced Performance of Polymer Composites

ACS Applied Bio Materials, Journal Year: 2023, Volume and Issue: 6(12), P. 5169 - 5192

Published: Nov. 30, 2023

The biopolymer lignin, which is heterogeneous and abundant, usually present in plant cell walls gives them rigidity strength. As a byproduct of the wood, paper, pulp manufacturing industry, lignin ranks as second most prevalent worldwide, following cellulose. This review paper explores extraction, modification, prospective applications various industries, including enhancement thermosetting thermoplastic polymers, biomedical such vanillin production, fuel development, carbon fiber composites, creation nanomaterials for food packaging drug delivery. structural characteristics remain undefined due to its origin, separation, fragmentation processes. comprehensive overview encompasses state-of-the-art techniques, potential applications, diverse extraction methods, chemical modifications, utilization, vanillin. Moreover, focuses on utilization lignin-modified polymer blends across multiple sectors, providing insights into advantages limitations this innovative approach development environmentally friendly materials.

Language: Английский

---

Recent Advances in Characterization and Valorization of Lignin and Its Value-Added Products: Challenges and Future Perspectives

Biomass, Journal Year: 2024, Volume and Issue: 4(3), P. 947 - 977

Published: Sept. 2, 2024

Lignin, the earth’s second-most abundant biopolymer after cellulose, has long been relegated to low-value byproducts in pulp and paper industry. However, recent advancements valorization are transforming lignin into a sustainable versatile feedstock for producing high-value biofuels, bioplastics, specialty chemicals. This review explores conversion of lignin’s complex structure, composed syringyl (S), guaiacyl (G), p-hydroxyphenyl (H) units, value-added products. We critically assess various biochemical analytical techniques employed comprehensive characterization. Additionally, we explore strategies upgrading functionalization enhance its suitability advanced biomaterials. The emphasizes key areas valorization, including catalytic depolymerization methods, along with associated challenges advancements. discuss potential as diverse products such carbon fibers, adhesives, phenolic compounds. Furthermore, briefly inherent properties UV protectant antioxidant, alongside incorporation polymer blends composites. By presenting case studies from literature, this highlights significant economic environmental benefits waste reduction, lower greenhouse gas emissions, decreased reliance on non-renewable resources. Finally, address future perspectives achieving large-scale, techno-economically feasible, environmentally valorization.

Language: Английский

---

Preparation of high antioxidant nanolignin and its application in cosmetics

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 272, P. 132635 - 132635

Published: May 24, 2024

Language: Английский

---