WebGierer, J.; Imsgard, F.; Norén, I. 1977: Studies on the degradation of phenolic lignin units of the β-aryl ether type with oxygen in alkaline media. Acta Chem. Scand. B 31: 561–572. Google Scholar Gierer, J.; Koutek, B. 1969. The cleavage of aromatic methyl ethers by neutral sulphite — a kinetic investigation. WebSep 1, 2010 · A new type of phenolic lignin based network polymer with the structure-variable function composed of 1,1-diarylpropane units. Polym. Int. 47 , 277–290 (1998).
Simple Plant Phenolics, Lignin, Flavonoids and Tannins - Biology …
WebJun 6, 2024 · Lignin has a phenolic structure with high hydrophobicity that makes it as a promising bioreplacement of phenol in the synthesis of PF resins. However, lignin has low reactivity toward formaldehyde compared with phenol due to its high molecular weight and steric hindering. WebApr 12, 2024 · Bio-oil is a complex mixture including water and hundreds of organic species which can be classified into four streams, namely phenolic monomers (from lignin), furans and sugars (mainly from cellulose), a water-soluble phase containing small organic species such as acetic acid (mainly from hemicellulose), next to large molecular oligomers such ... hartjes schuhe online shop herren
Phenolic Definition & Meaning - Merriam-Webster
WebApr 1, 2013 · Lignin is a high molecular weight polymer composed of alkylphenol units. Therefore, it can be regarded as a rich source of phenols. However, it is difficult to … WebApr 12, 2024 · Lignin is a polymer found in the cell walls of plants and is an important component of wood. Lignin-derived fuels have attracted attention as a means of producing biofuels from biomass in recent years. There are two basic methods for converting lignin into fuel: thermochemical and catalytic. Lignin-derived fuels have the potential to reduce … WebApr 22, 2008 · This article discusses the potential for an increased use of lignin as a renewable raw material, possible conversion routes towards monomeric phenolic compounds, and applications for these products. A brief overview about present state-of-the-art is given and a high-yielding, one-step approach of producing alkylated phenolic … hartjes schuhe online