期刊
POLYMERS
卷 13, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/polym13060968
关键词
lignin; macromolecular chain transfer agent; RAFT miniemulsion polymerization; thermal behavior; mechanical performance
资金
- National Natural Science Foundation of China [31770604, 31890774]
A novel bio-based methyl methacrylate copolymerized with butyl acrylate (MMA-co-BA) hybrid resin was prepared using lignin as a macromolecular chain transfer agent, showing improved tensile strength and higher Young's modulus compared to pure resin. This research provides a new approach for utilizing waste biomass for high-value applications and serves as a reference for designing new materials for coatings or adhesives.
The conversion of cornstalk lignin derived from the co-product of bio-refinery into value-added products such as polymeric material has remarkable environmental and economic potential. A novel bio-based methyl methacrylate copolymerized with butyl acrylate (MMA-co-BA) hybrid resin in our research was prepared by the reversible addition-fragmentation chain transfer method using lignin-graft-polyacrylamide (lignin-g-PAM) as a bio-derived macromolecular chain transfer agent. The molecular architecture of lignin-g-PAM and the lignin-based MMA-co-BA hybrid resin was elucidated using H-1 nuclear magnetic resonance and attenuated total reflectance-Fourier transform infrared. The thermal behavior and mechanical performance of the resultant lignin-based MMA-co-BA hybrid resins were also investigated through thermogravimetric analysis, differential scanning calorimetry, and a stress-strain test, respectively. The lignin-based acrylate resins system exhibited structure-related thermal and mechanical properties. Compared with pure MMA-co-BA resin, the incorporation of lignin into various lignin-based MMA-co-BA graft copolymers resulted in an improved tensile strength and a higher Young's modulus. This research could provide not only a new avenue to utilize waste biomass for high-value applications, but also a reference for designing new materials for coatings or adhesives.
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