Journal Article10.1021/ACSSUSCHEMENG.6B02960
Development of High Performance Polyurethane Elastomers Using Vanillin-Based Green Polyol Chain Extender Originating from Lignocellulosic Biomass
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TL;DR: In this paper, a DV-ethanol amine conjugate (DV-EA)-based polyurethane was used as a chain extender in the synthesis of a biocontents in the final polymer.
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Abstract: Vanillin can be obtained from waste of lignocellulosic bioresources with various methods.1−3 Such vanillin was used as chain extender [divanillin-ethanol amine conjugate (DV-EA)] after its dimerization and further modification with ethanolamine in the synthesis of biobased polyurethane, thereby increasing wt % of biocontents in the final polymer. 1,4-Butanediol often used as a general chain extender in polyurethane synthesis was replaced partially with DV-EA. The generated polyurethane hard segment consists of DV-EA polyol and MDI (methylene diisocyanate) units or 1,4-butanediol and MDI units, respectively. The properties of the DV-EA-based polyurethane were investigated with differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analyzer (DMA), X-ray diffraction spectroscopy (XRD), and universal testing machine (UTM). The results showed that this advanced polyurethane has 128% of Young’s modulus and 147% of increased strain compared to those of control, while its st...
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Citations
Bright Side of Lignin Depolymerization: Toward New Platform Chemicals
TL;DR: Following the whole value chain from raw lignocellulose through depolymerization to application whenever possible, specific lignin-based compounds emerge that could be in the future considered as potential lignIn-derived platform chemicals.
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Lignin-Based Polyurethanes: Opportunities for Bio-Based Foams, Elastomers, Coatings and Adhesives
Mona Alinejad,Christian Henry,Saeid Nikafshar,Akasha Gondaliya,Sajad Bagheri,Nusheng Chen,Sandip K. Singh,David B. Hodge,David B. Hodge,Mojgan Nejad +9 more
TL;DR: The potential of incorporation of lignins into polyurethane products that include rigid and flexible foams, adhesives, coatings, and elastomers, and challenges in incorporating lignin in polyurehane formulations are discussed.
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Bacterial Valorization of Lignin: Strains, Enzymes, Conversion Pathways, Biosensors, and Perspectives.
Siseon Lee,Minsik Kang,Minsik Kang,Jung Hoon Bae,Jung Hoon Sohn,Jung Hoon Sohn,Bong Hyun Sung,Bong Hyun Sung +7 more
TL;DR: This review covers the indirect use of bacteria for lignin degradation, which is concerned with whole-cell biosensors designed to detect the aromatic chemicals released from lignIn transformation.
Renewable vanillin-based flame retardant toughening agent with ultra-low phosphorus loading for the fabrication of high-performance epoxy thermoset
Fukai Chu,Chao Ma,Tao Zhang,Zhoumei Xu,Xiaowei Mu,Wei Cai,Xia Zhou,Shicong Ma,Yifan Zhou,Weizhao Hu,Lei Song +10 more
TL;DR: In this article, the vanillin-based flame retardant toughening agent (PVSi) was synthesized and incorporated into epoxy, which can significantly enhance the impact toughness of epoxy.
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TL;DR: In this review, various polyurethane systems for scaffolds are discussed, as well as methods of fabrication, including the latest developments, and their advantages and disadvantages.
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Ignition, combustion, toxicity, and fire retardancy of polyurethane foams: A comprehensive review
Harpal Singh,A. K. Jain +1 more
TL;DR: A review of polyurethane foams fire-retardant performance can be found in this article, which provides insight into the ignition, combustion, smoke, toxicity, and fire-resilience performance of flexible and rigid polyurethene foams.
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Vanillin : synthetic flavoring from spent sulfite liquor
TL;DR: Vanillin production from the lignin-containing waste liquor obtained from acid sulfite pulping of wood began in North America in the mid 1930's as discussed by the authors, and by 1981 one plant at Thorold, Ontario produced 60% of the contemporary world supply of vanillin.