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STUDIES ON LIGNIN AND RELATED COMPOUNDS: XIII. THE STRUCTURE AND PROPERTIES OF GLYCOL LIGNIN
Canadian Journal of Research, 1935Lignin was extracted from spruce wood meal with ethylene glycol containing (a) 0.05% and (b) 0.2% hydrogen chloride. On purification the two glycol lignins were found to contain 16.9% OCH3 and 62.8% C., and 16.5% OCH3 and 64.7% C. respectively. The aqueous glycol mother liquor was found to contain a soluble lignin-carbohydrate compound.
K. R. Gray +3 more
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Thermogravimetric analysis of glycol lignin fractions obtained by sequential solvent extraction
Fuel, 1993Abstract Data are presented on the thermal behaviour of a solvolytic lignin and its fractions during combustion and devolatilization in a thermal analyser.
Ralph Overend +2 more
exaly +2 more sources
ACS Sustainable Chemistry & Engineering, 2021
Recently, we have demonstrated the initial process design of acid-catalyzed poly(ethylene glycol) (PEG) solvolysis of softwood Japanese cedar (JC) in a large-scale batch reactor (50 kg wood meal pe...
Thi Thi Nge +6 more
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Recently, we have demonstrated the initial process design of acid-catalyzed poly(ethylene glycol) (PEG) solvolysis of softwood Japanese cedar (JC) in a large-scale batch reactor (50 kg wood meal pe...
Thi Thi Nge +6 more
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Journal of Agricultural and Food Chemistry, 2012
Imidacloprid, a systemic insecticide that has a water solubility of 610 mg L(-1), has been formulated in lignin-polyethylene glycol matrices by a melting process. This formulation was coated in a Wurster type fluidized-bed equipment using ethylcellulose and dibutyl sebacate. Imidacloprid has been entrapped, with an entrapment efficiency higher than 87%
Francisco, Flores-Céspedes +5 more
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Imidacloprid, a systemic insecticide that has a water solubility of 610 mg L(-1), has been formulated in lignin-polyethylene glycol matrices by a melting process. This formulation was coated in a Wurster type fluidized-bed equipment using ethylcellulose and dibutyl sebacate. Imidacloprid has been entrapped, with an entrapment efficiency higher than 87%
Francisco, Flores-Céspedes +5 more
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Industrial & Engineering Chemistry Research
The literature shows the possibility to produce ethylene glycol via catalytic hydrogenolysis over tungsten and nickel catalysts at good yields (∼35 wt %) from deashed lignocellulosic biomass that, thereby, still retains its lignin. This approach still requires purging the solubilized lignin from the recycle loop to avoid accumulation in the system ...
Romolo Di Sabatino +3 more
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The literature shows the possibility to produce ethylene glycol via catalytic hydrogenolysis over tungsten and nickel catalysts at good yields (∼35 wt %) from deashed lignocellulosic biomass that, thereby, still retains its lignin. This approach still requires purging the solubilized lignin from the recycle loop to avoid accumulation in the system ...
Romolo Di Sabatino +3 more
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European Polymer Journal, 1991
Abstract Cross-linked copolyesters containing kraft lignin were synthesized with sebacoyl chloride and terephthaloyl chloride by bulk polymerization. Polyethylene glycol was used as co-monomer and solvent for lignin. The effects of COCl/OH ratio, percentage of kraft lignin and molecular weight of PEG on the yield and thermal properties of these ...
Zhao-Xia Guo, Alessandro Gandini
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Abstract Cross-linked copolyesters containing kraft lignin were synthesized with sebacoyl chloride and terephthaloyl chloride by bulk polymerization. Polyethylene glycol was used as co-monomer and solvent for lignin. The effects of COCl/OH ratio, percentage of kraft lignin and molecular weight of PEG on the yield and thermal properties of these ...
Zhao-Xia Guo, Alessandro Gandini
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The structure and properties of glycol lignin.
1934The extraction of "glycol lignin" by use of glycol containing 0.05% HCI has been investigated, new methods for the purification described, and the methoxyl contents shown to be 16.5 - 16% (and not 18.5, as previously reported). Fractionation gave two isomeric components.
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Performance enhancement of phenolic resin by glycol‐modified lignin
Polymers for Advanced TechnologiesAbstractWithout using fossil resources such as petroleum and coal, which are likely to be depleted and have a large load on the environment, we studied the improvement of the performance of phenolic resin using lignin‐based natural material, which is a non‐fossil resource that is less likely to cause environmental problems.
Hajime Kimura +5 more
exaly +3 more sources
Determination of lignin and cellulose in forages by extraction with triethylene glycol
Journal of the Science of Food and Agriculture, 1973AbstractA method of lignin determination which utilises the solubility of lignin in HCl‐activated triethylene glycol at 121 °C is described. Experiments on a range of samples indicate that the method is simple, fast and reproducible, and relates well to in vitro organic matter digestibility.
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Lignin‐polyethylene glycol matrices and ethylcellulose to encapsulate highly soluble herbicides
Journal of Applied Polymer Science, 2014ABSTRACTThe blending of lignin with polyethylene glycol (PEG) allowed us to obtain formulations with controlled release properties in which metribuzin have been successfully trapped with encapsulation efficiency higher than 85%. Moreover, the modification of the lignin's viscoelastic properties by the addition of PEG led to obtain herbicide ...
Manuel Fernández‐Pérez +3 more
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