In this article, to investigate a redox initiation system consisting of oil-soluble components, ATP was firstly modified to bear primary amine groups
, and then a Schiff Base reaction was employed to anchor aromatic tertiary amine groups
on the surface of ATP.
Functionalization was carried out through addition of amine group
from 3-aminopropyltriethoxysilane, refluxed in toluene and stirred for 20h as method referred .
To confirm the presence of amine group
in AFAAC, total mole of amine, mole of primary amine and mole of secondary amine per kilogram of AFAAC have been calculated from the results of potentiometric titration (Aniline was used as internal standard) and their corresponding values per kilogram of AFAAC are 8.
The epoxy and hydroxyl groups of the epoxy resin and the amine groups
of the hardener within the microgels continue to react to improve the crosslinking density, while those near the surface react with surrounding monomers and oligomers, leading to increased microgel diameter and microgel interconnection.
Aldehydes and ketones form hemiaminals with amine groups
The presence of amine group
is expected to interact with acidic groups on the carbon black surface, resulting in an increase in the pH of the medium, which is actually seen (table 6).
Last year, Payne and graduate student Wei-Qiang Sun began to harness the reactivity of chitosan's amine group
to help streamline chemical manufacturing.
The results showed that the aminated lignin containing a great quantity of primary amine and secondary amine groups
could serve as a curing agent of epoxy resins.
Compound A-187 contains epoxy functional groups which can react with amine groups
of polyethylenepolyamine (PEPA) used as curing agent of epoxy resin (Fig.
It was observed a significant increase in the grafting of amine group
by increasing the molar ratio till 1:1.
In addition, the proximity of the amine group
to the carbonyl group (two carbon separation) reduces the amine reactivity due to inductive effects.
Ethanox 703, a sterically hindered phenolic antioxidant incorporating an amine group
, offers bifunctional activity.