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Preparation of Amines: Alkylation of Ammonia and Amines

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Alkylation is one of the methods used to prepare amines. Direct alkylation of ammonia or a primary amine with an alkyl halide gives polyalkylated amines along with a quaternary ammonium salt through successive SN2 reactions. This process of making the quaternary salt through the direct alkylation method is called exhaustive alkylation.
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Processing nanoporous organic polymers in liquid amines.

Jeehye Byun¹, Damien Thirion², Cafer T Yavuz^2,3

¹Water Cycle Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14, Seoul, 02792, Korea.

Beilstein Journal of Nanotechnology

|October 4, 2019

Summary

This summary is machine-generated.

Researchers developed a new method to process insoluble nanoporous organic polymers into nanoparticles and films using liquid amines. This breakthrough enables easier fabrication for applications in gas separation and catalysis.

Keywords:

film liquid amine nanoparticles nanoporous polymer processibility

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Published on: October 10, 2016

Area of Science:

Materials Science
Polymer Chemistry

Background:

Nanoporous organic polymers offer high porosity for diverse applications like gas sorption and catalysis.
Their practical insolubility hinders processing into useful forms like nanoparticles or films.

Purpose of the Study:

To develop a method for processing insoluble nanoporous organic polymers.
To enable the fabrication of nanoparticles and films from these materials.

Main Methods:

Utilizing liquid amines as solvents at elevated temperatures to dissolve nanoporous polymers.
Employing Fourier-transform infrared (FTIR) spectroscopy to analyze chemical interactions.

Main Results:

Successfully processed nanoporous polymers into nanoparticles (115.7 ± 40.8 nm) and flawless films.
FTIR confirmed carboxyl groups react with amines, facilitating dissolution.
The resulting film exhibited CO2-philicity and could be converted to a carbon film.

Conclusions:

Liquid amines provide a viable solvent system for processing otherwise insoluble nanoporous organic polymers.
This method overcomes fabrication challenges, opening new avenues for material applications.
The processed materials show promise for CO2 capture and conversion into carbon films.