Characterization of Organic Polymer Monolith Columns Containing Ammonium Quarternary As Initial Study For Capillary Chromatography

Abstract

The polymerization process with a simple step has become the centre of attention of several researchers. Various polymers have been developed, although in general, they use polymerization with a post-modification method. A quaternary ammonium monolith organic polymer has been prepared using a simple single thermal method in this research. 2-(Methacryloyloxy)-N,N,N-trimethylethanaminium chloride was as the monomer, and ethylene dimethacrylate was as crosslinker. The polymerization proceeded in fused-silica capillary (100 mm, 0.32 mm i.d. x 0.45 mm o.d.) using a one-pot approach method. To achieve the perfect macropores, isopropyl alcohol, PEG 400, and ethanol were used as porogen. Characterization of the surface morphology was carried out using a Scanning Electron Microscope (SEM), and the existence of an amine group was characterized by Fourier Transform Infrared Spectroscopy (FTIR). The distribution size of pores in the polymer was in the range of 1.29 to 3.33 µm.Abstrak: Polimerisasi dengan proses yang sederhana dan simpel menjadi pusat perhatian beberapa peneliti. Berbagai macam polimer telah dikembangkan, akan tetapi pada umumnya menggunakan polimerisasi dengan metode post-modification. Pada penelitian ini, polimer organik yang mengandung amonium kuartener dalam bentuk monolit dengan polimerisasi yang menggunakan suhu tunggal dan sederhana telah dilakukan. 2-(Methacryloyloxy)-N,N,N-trimethylethanaminium chloride digunakan sebagai monomer dan ethylene dimethacrylate sebagai crosslinker. Polimerisasi dilakukan dengan metode one-pot aaproach di dalam kapiler silika (100 mm, 0,32 mm i.d. x 0,45 mm o.d.). Untuk mendapatkan makropori yang sempurna, isopropil alkohol, PEG 400 dan etanol digunakan sebagai porogen. Karakterisasi morfologi permukaan dilakukan dengan menggunakan Scanning Electron Microscope (SEM), dan Fourier Transform Infrared Spectroscopy (FTIR) untuk mengidentifikasi gugus fungsi gugus amina yang terdapat pada polimer. Ukuran distribusi pori pada polimer berkisar antara 1,29 sampai 3,33 µm.

Synthesis and characterization of ammonium polymer for anion removal in aqueous solutions

“…A polymer is a substantial molecule comprising several monomers joined by cross-binders [1]. Polymers are typically employed as the primary component of plastics, and scientists have conducted many studies on using polymers as adsorbents for removing ions in liquid waste.…”

“…This classification is based on how the chemical process of chain creation occurs. Otherwise, the post-modification has some disadvantages: time-consuming manufacturing and a limited variety of polymer-forming materials [1].…”

“…One of the functional monomers is 2-[(methacryloyloxy)ethyl]trimethylammonium chloride (META). META and ethylene dimethacrylate as crosslinker have been prepared as monolith organic polymer using a simple single thermal using one-pot approach method [1]. However, these experiments have not applied for adsorption materials.…”

“…Initially, the polymerization stage was carried out by preparing a mixture solution according to previous research with major modification by Rahayu [1], with the scheme of expected reaction shown in Figure 1. The mixture solution was 1.25 mL of META, 0.375 mL of EDMA, 1.75 mL of isopropyl alcohol (IPA), 0.35 mL of ethanol, 1.4 mL of PEG, and 2 mg AIBN, then was homogenized before filling into the cylinder tube.…”

“…In a prior study, META polymer was successfully used as a stationary phase for separating organic molecules utilizing a liquid chromatography system [1]. In this research, the META polymer will be applied as an adsorbent to remove anions in aqueous solution.…”