diester


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diester

(daɪˈɛstə)
n
a compound that contains two ester groups, often used in synthetic lubricants for machinery such as compressors
References in periodicals archive ?
The composition has no more than approximately 50% by weight of diester quaternary ammonium compound.
DDDA is mostly used in diester synthetic lubricants, fibers, and polyester coatings among others.
Cabe destacar que los principales acidos grasos encontrados en la microalga son los reportados por diferentes autores como (Sanchez et al., 2012; Damiani et al., 2010; Miao et al., 2006), los cuales son usados por H.pluvialis en la esterificacion de la Astaxantina ya sea en monoester o diester; brindandole a la celula una fuente de reserva energetica.
DDDA is also used in polyester coatings, diester synthetic lubricants and fibers among others.
Glutamoyl diester of the dietary polyphenol curcumin offers improved protection against peroxynitrite-mediated nitrosative stress and damage of brain mitochondria in vitro: Implications for Parkinson's disease.
In addition, they concluded that the addition of a benzotriazole UVA to diester HALS shows synergistic effect on decreasing color fading [18].
The real question is what is the synthetic base stock, PAG, Diester, PAO?
The phosphorus atom from CHP diester end groups gives two distinct singlets with very close chemical shifts because of the presence of more than one diastereomeric species in the molecules of the products.
(ii) Ring opening polymerization of cyclic diester lactide [26]
Their synthetic strategy was based on the use of diester diyne monomers which were obtained by thermal (60[degrees]C) condensation of diacids with 3-butyl-1-ol and 2-propyn-1-ol (propargyl alcohol) under reduced pressure using Scandium(III) triflate as a catalyst Sc[(OTf).sub.3].