Sulfonated and ordered mesoporous polymers for reversible adsorption of ammonia: Elucidation of sequential pore-space diffusion

Porous acid–base hybrid polymers for enhanced NH3 uptake with assistance from cooperative hydrogen bonds

“… 57,58 Meanwhile, the disappearance of ν s (COOH) at about 1710 cm −1 (marked with *) and the increase in ν s (COO − ) and ν as (COO − ) at about 1520 cm −1 and 1350 cm −1 (marked with #) indicate the carboxylic acid of hybrid polymers forming the carboxylate salt. 59 These results support the formation of NH 4 + from the reaction of NH 3 with the proton of hybrid polymers. 60 A new peak at about 910 cm −1 (marked with ▼) is ascribed to the hydrogen bonding of NH 3 from PAA-PVIm and PVBA-PVIm, while that at 850 cm −1 was due to PVBA–P4VP.…”

Advanced Materials for NH3 Capture: Interaction Sites and Transport Pathways

“…Recently, Kan et al [ 101 ] further reported a sulfonated and ordered mesoporous polymer (SOMP). The strong affinity of the –HSO 3 group with NH 3 in sequential pore space of SOMPs, as shown in Fig.…”

Efficient procedure for biodiesel synthesis from waste oil and t-butylation of resorcinol using a porous microtube polymer-based solid acid

“…Sulfonated porous polymers have also shown high activities for the reversible adsorption of ammonia. 21,22 However, PDVB from vinyl polymerization has an alkyl chain framework, which is not as stable as a rigid aromatic ring framework.…”