Results 101 to 110 of about 13,676 (263)
Unraveling Lignin's Color Puzzle: From Chromophore Origins to Advanced Decolorization Strategies
Aggregate, Volume 7, Issue 1, January 2026.This review provides a comprehensive systematic analysis of the research advancements in lignin color formation mechanisms and decolorization techniques, specifically focusing on three principal approaches: hydroxyl shielding, biomass fractionation, and physical methods. It highlights the systematic research approach of the review toward decolorization
Lizhen Huang, Zhuotong Wu, Li Shuai
wiley +1 more source
Synthesis of Solution-Phase Phosphoramidite and Phosphite Ligand Libraries and Their In Situ Screening in the Rhodium-Catalyzed Asymmetric Addition of Arylboronic Acids [PDF]
, 2007 Herein, we report the automated parallel synthesis of solution-phase libraries of phosphoramidite ligands for the development of enantioselective catalysts.
Feringa, Ben L., +5 more
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Co‐Impregnated MgAl Layered Double Hydroxide as an Efficient Catalyst for Glycerol Oligomerization
Applied Organometallic Chemistry, Volume 40, Issue 1, January 2026.A cobalt(II) acetylacetonate–impregnated MgAl LDH catalyst was developed, showing enhanced basicity and superior activity in glycerol oligomerization, achieving 68% conversion and 27% diglycerol selectivity. The catalyst maintained high performance over three recycling cycles, with structural and surface modifications confirmed by comprehensive ...
Fernando José Soares Barros +5 more
wiley +1 more source
Characterization of beech wood pulp towards sustainable rapid prototyping [PDF]
, 2014 Wood has several advantages that are transferable to various derivates allowing the introduction of a sustainable material into the product lifecycle. The objective of this paper is to apply a design for manufacturing approach based on wood flour rapid ...
GARDAN, Julien, ROUCOULES, Lionel
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The Etherification of Nonamethylenepolyurea
Kobunshi Kagaku, 1968 ノナメチレンポリ尿素とエチレンオキシド, プロピレンオキシドの反応を常圧液相, 加圧反応で行ない, エーテル結合量, 窒素分析の結果, アルカリと酸を比較すると酸は触媒効果が少なく, エーテル化の高い付加物を得るためにはノナメチレンポリ尿素の強い水素結合のため長時間反応を必要とする。X線回折によりEOはノナメチレンポリ尿素の非晶性部分にグラフトしているものと考えられる。吸湿率はノナメチレンポリ尿素よりやや高い値を示し, 溶融点はオキシエチル化度34.24%のもので191℃とかなり高い値を示した。溶解性はm-クレゾール, 硫酸に対しノナメチレンポリ尿素は溶解するが, 付加物は不溶で, フェノール (90%) アセトン溶液, 氷酢酸, 塩酸に対しノナメチレンポリ尿素は不溶であるが ...
openaire +2 more sources
Rare Earth Metal Trifluoromethanesulfonates Catalyzed Benzyl-Etherification.
Chemical and Pharmaceutical Bulletin, 2002 Rare earth metal trifluoromethanesulfonates [rare earth metal triflate, RE(OTf)3] were found to be efficient catalyst for benzyl-etherification. In the presence of a catalytic amount of RE(OTf)3, condensation of benzyl alcohols and aliphatic alcohols proceeded smoothly to afford the benzyl ethers.
Atsushi, Kawada +3 more
openaire +3 more sources
Plant‐Derived Polyphenols for Sustainable Flame‐Retardant Coatings
Chemistry–Methods, Volume 6, Issue 1, January 2026.This review compares plant‐derived polyphenolic flame retardants by synthesizing literature on their mechanisms, synergistic effects, and performance across polymers, wood, fibers, and coatings, while examining biodegradability, life cycle assessment, safe‐and‐sustainable‐by‐design, and consistency with circular‐economy principles for sustainable fire ...
Myeongjun Song, Woo Rin Lee, Kyueui Lee
wiley +1 more source
Synthesis and characterization of oil palm trunk hemicellulose derivatives for coagulation/flocculation removal of cationic dyes [PDF]
, 2016 Oil palm biomass such oil palm empty fruit bunch, oil palm frond and oil palm trunk (OPT) are considered as the most abundant agrowastes that have the potential to be utilized as raw materials for production of value-added products.
Shaari, Norsalliana
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ChemSusChem, Volume 19, Issue 1, January 2026.An atom‐economic methodology toward the synthesis of β‐adrenergic blocker esmolol (1Ha) from sugarcane bagasse has been developed. The depolymerization of sugarcane via a lignin‐first reductive catalytic fractionation catalyzed by Cu20PMO, enables the selective sourcing of methyl(3‐ (3‐hydroxy‐4‐methoxyphenyl)propionate (1H).
Antonio A. Castillo‐Garcia +1 more
wiley +1 more source
Vapour liquid equilibrium measurements for process design [PDF]
, 2004 In recent years it has become increasingly important to develop new oxygenate and isooctane technologies and processes that meet the continuously stricter environmental requirements. Some of the new process schemes use renewable raw materials in order to
Uusi-Kyyny, Petri
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