نتایج جستجو برای: succinic anhydride

تعداد نتایج: 6927  

Journal: :Cellulose 2021

Abstract In this study, the effect of deep eutectic solvent (DES) based on triethylmethylammonium chloride and imidazole mechanochemical succinylation sawdust was investigated. The ball milled in presence succinic anhydride effects different amounts DES carboxylic acid content particle size were studied with without post-heating. significantly increased addition by using 1.5 mass excess compare...

2009
Kris Arvid Berglund Ulrika Rova

Chemical pulp mills such as Kraft, soda, or sulfite mills are current examples of biorefineries that can convert lignocellulosic biomass into energy, pulp or cellulose derivatives, and tall oil. While existing viscose pulps use a hemicellulose extraction to generate soluble sugars for ethanol production, in general there still exists a large potential for other more profitable applications of t...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1968
A Scanu R Hirz

Previous studies from this laboratory employing the technique of optical rotatory dispersion (ORD) have shown that human serum high-density lipoprotein (HDL) of d 1.063-1.21 gm/ml has a high content in a-helix which is to a large extent retained in its lipid-free form, apo HDL.1 On the basis of the ORD parameters, an unordered structure was assigned to the nonhelical portion of the apoprotein, ...

Size of nanoparticles is an important parameter in determining many of their properties. In this work, nanoparticles of β-1,3-glucan containing doxorubicin (Dox) in conjugated and unconjugated forms (Con-Dox-Glu and Un-Dox-Glu, respectively) were prepared. Then, artificial neural networks (ANNs) were used to find the effect of different formulation/processing parameters on their particle size, ...

Journal: :Cellulose 2022

Biodegradable colloidal particle materials are becoming attractive candidates as eco-friendly chemical additives in the low-carbon economy era. However, developing cheap, stable, and efficient paper-sizing agents is still a challenging issue for both paper-making academic community industry. Here, an easy-fabricating, high-performance alkenyl succinic anhydride (ASA) emulsion that stabilized by...

Journal: :E3S web of conferences 2021

In this study, the removal of Pb(II), Cu(II), Cd(II), and Zn(II) ions from aqueous solutions was investigated using succinic anhydride modified cellulose monoacetate. first part, acetate successfully succinylated in a homogenous medium DMF 4-dimethylaminopyridine (DMAP) as catalyst. The obtained material (AcS) analyzed by FTIR CP/MAS 13 C NMR Spectroscopy, thermogravimetry analysis DRX patterns...

Journal: :Agronomia colombiana 2023

Fermented soybean beverages are an alternative for improving intestinal health, and fermentation reduces the anti-nutritional factors of this legume. However, they do show high syneresis low viscosity. Modified cassava starches could be added as a thickener and/or stabilizer to improve quality product. The aim research was assess effect adding modified starch on physicochemical properties ferme...

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