Keywords
Anhydride 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 activated groups.
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.