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Adipic acid or hexanedioic acid is the organic compound with the formula (CH 2) 4 (COOH) 2. From an industrial perspective, it is the most important dicarboxylic acid : about 2.5 billion kilograms of this white crystalline powder are produced annually, mainly as a precursor for the production of nylon .
Adipic acid and 1,4-butanediol are polymerized to create their polyester (plus water). DMT and 1,4-butanediol are also reacted to form their polyester (plus methanol ). This polyester is then added to the butylene adipic acid polyester by using tetrabutoxytitanium (TBOT) as a transesterification catalyst; an overabundance of 1,4-butanediol ...
Poly(ethylene adipate) or PEA is an aliphatic polyester. [3] It is most commonly synthesized from a polycondensation reaction between ethylene glycol and adipic acid. [4] PEA has been studied as it is biodegradable through a variety of mechanisms and also fairly inexpensive compared to other polymers. [5]
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Nylon 66 is synthesized by polycondensation of hexamethylenediamine and adipic acid. Equivalent amounts of hexamethylenediamine and adipic acid are combined in water. In the original implementation, the resulting ammonium/carboxylate salt was isolated and then heated either in batches or continuously to induce polycondensation.
1,6-Hexanediol is industrially made by the hydrogenation of adipic acid or its esters. [ 3 ] [ 5 ] Laboratory preparation could be achieved by reduction of adipates with lithium aluminium hydride , although this method is impractical on a commercial scale.
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Dioctyl adipate (DOA) is an organic compound with the formula (CH 2 CH 2 CO 2 C 8 H 17) 2.It is a colorless oily liquid . As well as related diesters derived from 2-ethylhexanol, decanol, isodecanol, etc., it is used as a plasticizer.