Determination of the water-soluble polymer poly(ethyleneimine) (PEI) in wastewater by continuous-flow off-line pyrolysis GC/MS

Vidović, Nada; Antić, Vesna; Schwarzbauer, Jan

doi:10.1016/j.jaap.2023.106001

Cited by 6 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Analytical pyrolysis of PEIs has recently been reported in the literature [58,59]. In agreement with these studies, the relevant pyrolysis products of the PEI are alkylated pyrazines, while pyridines, pyrroles, and imidazoles were minor aromatic components (an exemplar pyrogram of fresh PEI 5k is reported in the supplementary information, Figure S9).…”

Section: Py-gc-mssupporting

confidence: 71%

Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine

Coralli,

Giuri,

Spada

et al. 2023

IJMS

View full text Add to dashboard Cite

The search for alternative ways to give a second life to materials paved the way for detailed investigation into three silica-polyethylenimine (Si-PEI) materials for the purpose of CO2 adsorption in carbon capture and storage. A solvent extraction procedure was investigated to recover degraded PEIs and silica, and concomitantly, pyrolysis was evaluated to obtain valuable chemicals such as alkylated pyrazines. An array of thermal (TGA, Py-GC-MS), mechanical (rheology), and spectroscopical (ATR-FTIR, 1H-13C-NMR) methods were applied to PEIs extracted with methanol to determine the relevant physico-chemical features of these polymers when subjected to degradation after use in CO2 capture. Proxies of degradation associated with the plausible formation of urea/carbamate moieties were revealed by Py-GC-MS, NMR, and ATR-FTIR. The yield of alkylpyrazines estimated by Py-GC-MS highlighted the potential of exhausted PEIs as possibly valuable materials in other applications.

show abstract

Section: Py-gc-mssupporting

confidence: 71%

Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine

Coralli,

Giuri,

Spada

et al. 2023

IJMS

View full text Add to dashboard Cite

show abstract

“…However, analytical methods for water-soluble polymers have hardly been proposed. A potential candidate is based on gas chromatography/mass spectrometry of pyrolysis products obtained from solidified samples. − However, sample preparation is laborious, and special apparatuses are needed. Therefore, simple and convenient methods are urgently needed to identify water-soluble polymers, particularly in their solution state.…”

mentioning

confidence: 99%

Identification of Water-Soluble Polymers through Machine Learning of Fluorescence Signals from Multiple Peptide Sensors

Hasegawa,

Sawada,

Serizawa

2023

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Recently, there has been growing concern about the discharge of water-soluble polymers (especially synthetic polymers) into the environment. Therefore, the identification of water-soluble polymers in water samples is becoming increasingly crucial. In this study, a chemical tongue system to simply and precisely identify water-soluble polymers using multiple fluorescently responsive peptide sensors was demonstrated. Fluorescence spectra obtained from the mixture of each peptide sensor and water-soluble polymer were changed depending on the combination of the polymer species and peptide sensors. Water-soluble polymers were successfully identified through the supervised or unsupervised machine learning of multidimensional fluorescence signals from the peptide sensors.

show abstract

Pyrolysis acetylation: A novel on-line Py-GC-MS derivatisation for the characterisation of nitrogen-containing polymers

Coralli,

Fabbri

2023

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

Determination of the water-soluble polymer poly(ethyleneimine) (PEI) in wastewater by continuous-flow off-line pyrolysis GC/MS

Cited by 6 publications

References 31 publications

Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine

Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine

Identification of Water-Soluble Polymers through Machine Learning of Fluorescence Signals from Multiple Peptide Sensors

Pyrolysis acetylation: A novel on-line Py-GC-MS derivatisation for the characterisation of nitrogen-containing polymers

Contact Info

Product

Resources

About