group, Amide group, Cellulose, Cotton, Infrared spectroscopy, Soybean oil
Materials.--Cytochrome C from equine and bovine heart, normal and sickle cell hemoglobin, sinapinic acid, acetic anhydride
, amino acids (serine, cysteine, tyrosine, threonine, asparagine, glutamine, lysine, arginine, histidine, and glycine), urea, pepsin, and n-butylamine were purchased from Sigma (St.
Fischer (1960) describes the kinetics of the reaction of monoepoxy substances with anhydrides
by a zero-order equation.
The new compounds are alkyl oleates linked to succinic anhydride
, or AOSA.
In this study the grafting of maleic anhydride
onto elastomeric ethylene-octene copolymer (EOR) was carried out in a twin-screw extruder.
Makes three anhydrides
and an amine epoxy curing agent: dodecenylsuccinic anhydride
, hexahydrophthalic anhydride
, methylhexahydrophthalic anhydride
, and a cycloalaphatic diamine known as Millamine 5260.
One of these systems includes isopropylthioxanthone (ITX), 2,3-dimethyl maleic anhydride
(DMMA), and N-methyl-N,N-diethanolamine (MDEA) (4).
In this work, the homogeneous model system involves a simple addition reaction mechanism leading to an exothermic reaction between epoxide and anhydride
In these perspectives, for instance, the anhydride
grafting of polyolefins is the subject of many studies (1-3).
Offers formulated liquid amines, polyamides, anhydrides
, and Lewis acids, both filled and unfilled.
CE's reportedly can outperform aromatic amine and anhydride
curing agents in epoxy systems that are less expensive than CE homopolymers ($15/lb) or bismaleimides.
Generic hardeners include modified aliphatic and cycloaliphatic polyamines, polyamides and polyamide solutions, amidopolyamines, and anhydrides
. Choices available within hardener categories allow formulating with a complete range of handling characteristics and final cured properties.