Mechanism for Base Hydrolysis of Poly(N‐vinylformamide)

Witek, E; Pazdro, Marcin; Bortel, Edgar

doi:10.1080/10601320701235461

Cited by 27 publications

(36 citation statements)

References 9 publications

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“…Polyvinylamine (PVAm) has an exceptional reactivity because of the highest amount of primary amino groups among all synthetic polymers [10]. The studied catalysts were synthesized, as schematically shown in Scheme 1, by the deposition of poly(N-vinylformamide) (PNVF) on the surface of SBA-15 mesoporous silica followed by acid hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Control of amine functionality distribution in polyvinylamine/SBA-15 hybrid catalysts for Knoevenagel condensation

Wach

Drozdek

Dudek

et al. 2015

Catalysis Communications

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Section: Introductionmentioning

confidence: 99%

Control of amine functionality distribution in polyvinylamine/SBA-15 hybrid catalysts for Knoevenagel condensation

Wach

Drozdek

Dudek

et al. 2015

Catalysis Communications

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“…The reports, however, are somewhat controversial. Although yamamoto et al [15] reported full hydrolysis of PNVF by NaOH in aqueous solution, detailed investigation of Witek group [16] revealed that base hydrolysis results in ammonia evolution and formation of considerable amounts of vinyl alcohol segments.…”

Section: Synthesis and Characterization Of Pvammentioning

confidence: 99%

Unusual oxygen affinity of linear polyvinyl amine–cobalt complexes with hydroxyl counter ions: an efficient way of separation and chemical storage of molecular oxygen

Ince

Gure

Bıçak

2016

Designed Monomers and Polymers

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Methylated poly(vinyl amine) and its copolymer with diallyldimethylammonium chloride (DADMAC) were prepared by polymerization of N-vinyl formamide (NVF) or copolymerization with DADMAC. Acid hydrolysis of the polymers and subsequent methylation yielded corresponding polyamines. Co(II) complexes of the polyamines were demonstrated to be reasonably fast in molecular oxygen binding, when counter anions of cobalt are exchanged with hydroxyl ions. The oxygenation tests performed with oxygen sensor, FT-IR, and gas-volumetric methods revealed that complexes either with 4/1 or with 2/1 [amine]/[Co] ratios give 1:1 molecular oxygen adducts. Fast oxygenation (c.a. 2-4 min), high storage capacity, and smooth oxygen releasing within 70-120 °C are typical characteristics of the oxygenation-deoxygenation. The system seems to be useful for harvesting and chemical storage of air oxygen.

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“…The wall thickness of the support is 0.08 mm. PVAm is produced with base hydrolysis of Poly (N-vinylformamide) (PNVF) process and PNVF is produced by the reaction of acetaldehyde and formamide (Gu et al, 2001;Witek et al, 2007). Thus, the chemicals used for membrane preparation can be estimated based on the total membrane area obtained from …”

Section: Key Parameters and Assumptionsmentioning

confidence: 99%

Post-combustion carbon capture technologies: Energetic analysis and life cycle assessment

Zhang

Singh

et al. 2014

International Journal of Greenhouse Gas Control

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An integrated framework focusing on the energetic analysis and environmental impacts of a CO2 capture and storage (CCS) system is presented, in which the process simulation method and the life cycle assessment (LCA) method are integrated and applied to the CCS value chain.Three scenarios for carbon capture from post-combustion power plant -an MEA-based system, a gas separation membrane process and a hybrid membrane-cryogenic process are studied. The energy efficiency of power plant and the specific capture energy consumption for each scenario are estimated from process simulation. The environmental impacts for each scenario and the base case without CCS are assessed with LCA method. The results show that the MEA-based capture system faces the challenges of higher energy consumption, and higher environmental impact caused by solvent degradation and emissions compared to gas membrane separation processes. The hybrid membrane-cryogenic process shows a better environmental potential for CO2 capture from flue gases due to much lower power consumption and relatively lower environmental impacts.

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Mechanism for Base Hydrolysis of Poly(N‐vinylformamide)

Cited by 27 publications

References 9 publications

Control of amine functionality distribution in polyvinylamine/SBA-15 hybrid catalysts for Knoevenagel condensation

Control of amine functionality distribution in polyvinylamine/SBA-15 hybrid catalysts for Knoevenagel condensation

Unusual oxygen affinity of linear polyvinyl amine–cobalt complexes with hydroxyl counter ions: an efficient way of separation and chemical storage of molecular oxygen

Post-combustion carbon capture technologies: Energetic analysis and life cycle assessment

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