Akbarzadeh, Elaheh; Shockravi, Abbas; Vatanpour, Vahid published the artcile< Efficient thiazole-based polyimines as selective and reversible chemical absorbents for CO2 capture and separation: Synthesis, characterization and application>, Computed Properties of 57493-24-0, the main research area is thiazole thioether polyimine chem absorbent carbon dioxide capture separation.
A new series of polyimines (PIMs-1-9) including ortho-linked thiazole units and flexible thioether linkages were synthesized from diamine monomers (DA-1-3) and some com. available aromatic dialdehydes (terephthalaldehyde, isophthalaldehyde and 2,5-thiophenedicarboxaldehyde) via Schiff-base condensation reaction. The synthesized polymers as amorphous solids were obtained with high efficiency (74-89%), inherent viscosities in the range of 0.98-1.33 dL g-1 in DMF and high solubility in aprotic polar solvents (DMSO, DMAc, DMF, NMP, and Py). The PIMs were characterized via viscosimetry, elemental anal., FT-IR spectroscopy, X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), thermogravimetric anal. (TGA) and differential scanning calorimetry (DSC). High thermal resistance revealed for PIMs as glass transition temperatures (Tgs) ranging in 104-189 °C along with 10% weight loss temperatures exceeding 268-390 °C in air and 310-430 °C in nitrogen atm. The polymers were examined for CO2 absorption at 298 K as well as 318 K and high absorption capacity exhibited (maximum 3.72 mmol/g or 163.68 mg/g at 1 bar and 298 K for PIM-4) after 2 h and desorption at 373 K under vacuum conditions (100 mbar) in 20 min. More importantly, remarkable ideal selectivity ratios of CO2/N2 (77.3) and CO2/CH4 (13.7) at 1 bar and 298 K were obtained and recyclability of PIM-4 for CO2 capturing was determined without considerable loss of gas absorption.
Polymer published new progress about Absorbents. 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, Computed Properties of 57493-24-0.
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica