Results 11 to 20 of about 319,868 (397)
, 2021 Acetic anhydride (AA) is usually considered a stable molecule but is shown here to be able to polymerize in closed reactors to a cross-linked polyketone condensate.
S. Rat +4 more
semanticscholar +1 more source
Multiscale modelling investigation of wood modification with acetic anhydride.
Physical Chemistry, Chemical Physics - PCCP, 2020 Density functional theory (DFT) and molecular dynamics (MD) simulations were employed to investigate the interaction of cellulose and lignin with acetic anhydride for explaining the wood modification process. Cellulose was modelled with a cellobiose unit
Veerapandian Ponnuchamy +2 more
semanticscholar +1 more source
Journal of Natural Fibers, 2022 In this study, we have harvested natural oleaster (wild olive) fibers, processed and characterized in terms of physicochemical performance as well as mechanical properties.
K. Saidani +3 more
doaj +1 more source
Bi-acylation of cellulose: determining the relative reactivities of the acetyl and fatty-acyl moieties [PDF]
, 2011 The global reaction between acetic anhydride and a fatty acid yields, at equilibrium, an asymmetric acetic-aliphatic anhydride in a medium containing finally: acetic-fatty anhydride, acetic anhydride, fatty acid, acetic acid and fatty anhydride.
Borredon, Marie-Elisabeth +2 more
core +2 more sources
Preparation of Poly(oxybutyleneoxymaleoyl) Catalyzed by a Proton Exchanged Montmorillonite Clay
Molecules, 2004 The polycondensation of tetrahydrofuran with maleic anhydride catalyzed byMaghnite-H+ (Mag-H) was investigated. Maghnite is a montmorillonite sheet silicateclay that is exchanged with protons to produce Maghnite-H [1]. It was found that thepolymerization
Mohammed Belbachir +1 more
doaj +1 more source
Synthesis and Characterization of Cellulose Acetate from TCF Oil Palm Empty Fruit Bunch Pulp
BioResources, 2014 Cellulose acetate (CA) was successfully synthesized by the acetylation of TCF cellulose pulp from oil palm empty fruit bunches (OPEFB) at room temperature, using acetic anhydride as the acetylating agent and acetic acid as the solvent in the presence of ...
Fauzi Muhammad Djuned +3 more
doaj +1 more source
Журнал органічної та фармацевтичної хімії, 2020 Aim. To study the synthetic potential of cyclization of N-(β-polyfluoroacyl)vinyl derivatives of proline and N-substituted glycines into polyfluoroalkyl pyrroles, which are useful intermediates to fluorinated pyrrolidine alkaloids.
Anton A. Klipkov +3 more
doaj +1 more source
The pyrolytic decomposition of metal alkoxides (di-acetoxy-di-t-butoxy-silane, DADBS) during chemical vapour deposition of thin oxide films [PDF]
, 1993 In this study the effects of the nature of metal alkoxides on their vapour pressures and thermal decomposition chemistry are reported. The vapour pressure and the volatility of a metal alkoxide strongly depends on the steric effect of its alkoxy group ...
Fransen, T. +7 more
core +3 more sources
Molecules, 2020 An efficient route to acylated acyclic nucleosides containing a branched hemiaminal ether moiety is reported via three-component alkylation of N-heterocycle (purine nucleobase) with acetal (cyclic or acyclic, variously branched) and anhydride ...
Jan Frydrych +3 more
doaj +1 more source