secondary amine


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secondary amine

[′sek·ən‚der·ē ′am‚ēn]
(organic chemistry)
An organic compound that may be written R1R2NH, where R1 and R2 designate either identical or different groups.
References in periodicals archive ?
Nitrosamines are a family of carcinogens which are formed by the reaction of secondary amines, amides, carbamates, derivatives of urea with nitrite or other nitrogenous agents with the nitrogen in the +3 state.
Silanes with secondary amine groups sam and bsa had a larger impact on tensile strength values of the material.
Kataoka [16] had compared the effects of commonly used derivatization reagents, such as acylation, silylation, dinitrophenylation, permethylation, carbamate formation, sulfonamide formation, and phosphoamide formation for analysis of secondary amines by GC.
At the same time, the hydroxyl groups generated by the reaction between the secondary amine hydrogen and epoxy result in formation of ether links.
This is attributed to the cross-linking reaction between the secondary amine on the D-MWCNT surfaces and the epoxy matrix.
The composition includes at least three components: (1) a polymer that includes a first type of functionality such as a functional group including a primary or secondary amine functionality, (2) a polymer that includes a second type of functionality such as an alkoxysilane or other silica interacting functionality, and (3) at least two types of particulate filler.
Dimethyl Secondary Amine Chain Extenders: A Conceptual Approach to in situ Generation of Advanced Epoxy Resins for Rapid Cure, Low-VOC Coatings--Frederick H.
Internal H-bonding in the ASPE affected its reaction with an aliphatic isocyanate (NCO) due to varying reactivities of the primary hydroxyl (OH) compared to the secondary amine (NH).
Aliphatic amines quench the fluorescence intensity of aromatic hydrocarbons and themselves do not fluoresce, hence intrinsic fluorescence characterization is inapplicable for epoxy prepolymers cured with aliphatic amines [22], Mid-FTIR (600-4000 [cm.sup.-1]) characterization has been used to measure epoxy functional group reaction kinetics; however, the methods are not capable of providing clear distinction between epoxy, primary, and secondary amine concentration changes due to band overlap.
Walker's presentation was "Dimethyl Secondary Amine Chain Extenders: A Conceptual Approach to In Situ Generation of Advanced Epoxy Resins for RapidCure, Low-VOC Coatings."