Synthesization and Characterization of Lignin-graft-Poly (Lauryl Methacrylate) via ARGET ATRP

Wu, Min; Wu, Mang; Pan, Meng; Jiang, Feng; Hui, Bin; Zhou, Liang

doi:10.1016/j.ijbiomac.2022.02.169

Cited by 27 publications

(13 citation statements)

References 44 publications

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“…A Newtonian platform as indicated by an obvious linear viscoelasticity was observed in Figure c. At the same time, the hydroxyl groups present on lignin easily cause chain fracture, leading to the decrease of viscosity of the composites . The decreased η* is, to some extent, conducive to reduce the energy consumption of the melt-processing of composites .…”

Section: Resultsmentioning

confidence: 92%

“…Lignin copolymers were prepared by grafting lauryl methacrylate (LMA), a renewable fatty acid synthesized from plant oil, onto lignin by free-radical polymerization. ,,, Thermal properties, hydrophobicity, and chemical structure before and after grafting polymerization were investigated. With a long hydrophobic side chain, LMA monomer is expected to improve the hydrophobicity and flexibility of lignin.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the grafting monomers also render lignin desirable functions. 26 Free-radical polymerization, 27,28 ring-opening polymerization, 29,30 and living radical polymerization 31,32 have been reported for the preparation of graft copolymers. Among them, free-radical polymerization is the simplest and most effective method.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Grafting Polymerization of Long-Chain Hydrophobic Acrylic Monomer onto Lignin and Its Application in Poly(Lactic Acid)-Based Wholly Green UV Barrier Composite Films

et al. 2023

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The development of low-cost and high-performance bio-based composites derived from forestry waste lignin and polylactic acid has emerged as a topic of central attention. However, the weak compatibility between lignin and polylactic acid often resulted in high brittleness of the composites. Graft copolymerization is not only the most effective way to modify lignin but also can significantly improve the compatibility of lignin and polylactic acid. In this study, bio-based monomer lauryl methacrylate was grafted onto lignin by feasible radical polymerization to prepare lignin graft copolymers with excellent thermal stability and hydrophobicity, which are expected to improve the compatibility with polylactic acid. Wholly bio-based composites were prepared by compounding this graft copolymer with polylactic acid. The results showed that the crystallization ability of the composite was improved, and the highest crystallinity was increased from 6.42% to 17.46%. With addition of LG-g-PLMA lower than 9%, the thermal stability of the composites was slightly improved. At 5% copolymer addition, the elongation at break and tensile toughness of the composites increased by 42% and 36%, respectively. Observation of the frozen fracture surface of the composite by SEM found that wire drawing and ductile deformation appeared when a small amount of LG-g-PLMA was added. The thus prepared composites also showed excellent UV barrier properties. This approach provides a new idea for the high-value application of lignin.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Grafting Polymerization of Long-Chain Hydrophobic Acrylic Monomer onto Lignin and Its Application in Poly(Lactic Acid)-Based Wholly Green UV Barrier Composite Films

et al. 2023

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“…For this reason, several reactions to functionalize lignin with different functional groups have been reported and studied, these include alkylation, esterification, etherification, phenolization and carbamylation reactions [86][87][88][89][90]. In addition, lignin can be used to develop lignin graft copolymers in which polymer chains are attached to hydroxyl groups on the lignin structure, resulting in a star-shaped branched copolymer with a lignin core [91][92][93][94] (Tables 1 and 2).…”

Section: Biomass-based Materials Optimizationmentioning

confidence: 99%

Bioresource Upgrade for Sustainable Energy, Environment, and Biomedicine

Новоселов

et al. 2023

Nano-Micro Lett.

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We conceptualize bioresource upgrade for sustainable energy, environment, and biomedicine with a focus on circular economy, sustainability, and carbon neutrality using high availability and low utilization biomass (HALUB). We acme energy-efficient technologies for sustainable energy and material recovery and applications. The technologies of thermochemical conversion (TC), biochemical conversion (BC), electrochemical conversion (EC), and photochemical conversion (PTC) are summarized for HALUB. Microalgal biomass could contribute to a biofuel HHV of 35.72 MJ Kg−1 and total benefit of 749 $/ton biomass via TC. Specific surface area of biochar reached 3000 m2 g−1 via pyrolytic carbonization of waste bean dregs. Lignocellulosic biomass can be effectively converted into bio-stimulants and biofertilizers via BC with a high conversion efficiency of more than 90%. Besides, lignocellulosic biomass can contribute to a current density of 672 mA m−2 via EC. Bioresource can be 100% selectively synthesized via electrocatalysis through EC and PTC. Machine learning, techno-economic analysis, and life cycle analysis are essential to various upgrading approaches of HALUB. Sustainable biomaterials, sustainable living materials and technologies for biomedical and multifunctional applications like nano-catalysis, microfluidic and micro/nanomotors beyond are also highlighted. New techniques and systems for the complete conversion and utilization of HALUB for new energy and materials are further discussed.

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“…With the increasing concern about global environmental issues, how to reduce the carbon footprint to achieve carbon neutrality has been particularly important. To overcome this challenge, sustainable polymers derived from renewable resources have attracted great attention because of their huge potential to replace nonrenewable fossil-based incumbent polymers. − As the second most abundant natural biomass after cellulose, lignin has been frequently used as functional bioresource fillers to fabricate green composite materials with enhanced properties. − Alternatively, lignin can be utilized as the raw material to produce biobased aromatic-containing platform compounds, such as vanillin, syringol, guaiacol, eugenol, and syringic acids, offering new avenues for the preparation of lignin-based sustainable polymer materials . Due to the existence of a bulky aromatic ring side group, lignin-based methacrylate or acrylate monomers are ideal rigid segments to prepare the glassy blocks in elastomers .…”

Section: Introductionmentioning

confidence: 99%

Sustainable Multiblock Copolymer Elastomers Derived from Lignin with Tunable Performance toward Strong Adhesives and UV-Shielding Materials

Tang

Wang

Wen

et al. 2023

ACS Sustainable Chem. Eng.

Self Cite

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With the increasing concern about global environmental issues, reducing the carbon footprint to achieve carbon neutrality has been particularly important. Sustainable multiblock copolymer elastomers (MBCPEs) have received tremendous interest due to their unprecedented performance and huge potential applications. However, complex multistep polymerization and postpolymerization processes are needed to design MBCPEs. In this work, a series of MBCPEs, in which vanillin acrylate (VA) derived from lignin was selected as the renewable rigid segments for the glassy block, while methyl acrylate (MA) was chosen as the soft segments for the rubbery block, were prepared by two successive reversible addition–fragmentation chain transfer (RAFT) polymerization processes with polytrithiocarbonate (PTTC). These thermally stable MBCPEs exhibit distinct microphase-separated morphology, where the hard poly(vanillin acrylate) (PVA) blocks self-assemble into discrete glassy domains serving as the physical cross-linking points in the soft poly(methyl acrylate) (PMA) matrix. The macroscopic mechanical performance, such as tensile strength, stretchability, toughness, and elastic recovery, can be adjusted well by changing the molecular weights and PVA contents. Moreover, these sustainable MBCPEs can be applied as strong adhesives and excellent UV-shielding materials, broadening their potential applications. This novel strategy is convenient and robust by combining RAFT polymerization and renewable resources toward high-performance MBCPEs, which can open a new avenue for the development of sustainable biobased elastomers.

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Synthesization and Characterization of Lignin-graft-Poly (Lauryl Methacrylate) via ARGET ATRP

Cited by 27 publications

References 44 publications

Grafting Polymerization of Long-Chain Hydrophobic Acrylic Monomer onto Lignin and Its Application in Poly(Lactic Acid)-Based Wholly Green UV Barrier Composite Films

Grafting Polymerization of Long-Chain Hydrophobic Acrylic Monomer onto Lignin and Its Application in Poly(Lactic Acid)-Based Wholly Green UV Barrier Composite Films

Bioresource Upgrade for Sustainable Energy, Environment, and Biomedicine

Sustainable Multiblock Copolymer Elastomers Derived from Lignin with Tunable Performance toward Strong Adhesives and UV-Shielding Materials

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