نتایج جستجو برای: amberlyst
تعداد نتایج: 162 فیلتر نتایج به سال:
A symmetrical cyanine dye chromophore is modified with different counteranions to study the effect on crystal packing, polarizability, thermal stability, optical properties, light absorbing layer morphology, and organic photovoltaic (OPV) device parameters. Four sulfonate-based anions and the bulky bistriflylimide anion are introduced to the 2-[5-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)...
Thia-Michael reactions between aliphatic and aromatic thiols various Michael acceptors were performed under environmentally-friendly solvent-free conditions using Amberlyst® A21 as a recyclable heterogeneous catalyst to efficiently obtain the corresponding adducts in high yields. Ethyl acrylate was main acceptor used, although others such acrylamide, linear, cyclic enones also utilized successf...
The efficient reversible acetalization to synthesis solketal from glycerol and acetone (A + B ⇄ C D type reaction) using a simulated moving bed reactor (SMBR) packed with hydrogen-type cation-exchange resin Amberlyst 16 as solid catalyst was studied. Eley-Rideal kinetic model for batch heterogeneous constructed estimate the parameters. extended mass transfer SMBR determine operating condition. ...
Catalytic Hydrolysis of Ethyl Acetate using Cation Exchange Resin (Amberlyst - 15) : A Kinetic Study
The bulk chemicals esters contribute to commodity chemicals in nearly unlimited variety. Common fields of application include their use as solvents, plasticizers, surfactants, flavours, inter mediates in preparative organic chemistry, and many more.1 Though well investigated, the technology of ester production offers some challenging characteristics regarding catalysis, operation conditions and...
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