Room temperature, simple and efficient synthesis and functionalization of aromatic poly(arylene sulfide)s, poly(arylene sulfoxide)s and poly(arylene sulfone)s

Cetina-Mancilla, Enoc; Reyes-García, Germán A.; Rodríguez-Molina, Manuel; Zolotukhin, Mikhail G.; Vivaldo‐Lima, Eduardo; González‐Díaz, María Ortencia; Ramos‐Ortíz, Gabriel

doi:10.1016/j.eurpolymj.2022.111800

Cited by 8 publications

(2 citation statements)

References 39 publications

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“…The chemical applicability of the hydroxyalkylation reaction was significantly widened by the work on superelectrophilic activation by Nobel prize winner George Olah and his co-workers, who demonstrated that the reactivity of some specific electrophiles increased significantly when in contact with Brønsted or Lewis superacids by the formation of protonated and highly reactive “superelectrophiles” . This breakthrough chemistry enabled high-yield and specific hydroxyalkylations of less reactive arenes and the exploration of polyhydroxyalkylations to prepare polymers, which was first demonstrated by Zolotukhin et al. − The latter research group has since continued to further investigate and develop the polyhydroxyalkylation reaction. − …”

Section: Aem For Use In Alkaline Solutions < 2 Mmentioning

confidence: 99%

Separators and Membranes for Advanced Alkaline Water Electrolysis

Henkensmeier,

Cho,

Jannasch

et al. 2024

Chem. Rev.

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Traditionally, alkaline water electrolysis (AWE) uses diaphragms to separate anode and cathode and is operated with 5−7 M KOH feed solutions. The ban of asbestos diaphragms led to the development of polymeric diaphragms, which are now the state of the art material. A promising alternative is the ion solvating membrane. Recent developments show that high conductivities can also be obtained in 1 M KOH. A third technology is based on anion exchange membranes (AEM); because these systems use 0−1 M KOH feed solutions to balance the trade-off between conductivity and the AEM's lifetime in alkaline environment, it makes sense to treat them separately as AEM WE. However, the lifetime of AEM increased strongly over the last 10 years, and some electrode-related issues like oxidation of the ionomer binder at the anode can be mitigated by using KOH feed solutions. Therefore, AWE and AEM WE may get more similar in the future, and this review focuses on the developments in polymeric diaphragms, ion solvating membranes, and AEM.

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Section: Aem For Use In Alkaline Solutions < 2 Mmentioning

confidence: 99%

Separators and Membranes for Advanced Alkaline Water Electrolysis

Henkensmeier,

Cho,

Jannasch

et al. 2024

Chem. Rev.

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“…Superacid-catalyzed polyhydroxyalkylation (SACP) is a type of step-growth polymerization (SGP) between aromatic hydrocarbons and carbonyl compounds (Scheme 1) which allows the synthesis of a great variety of high-performance polymers with different structures. [1][2][3][4][5][6][7][8][9][10][11] Superacid-catalyzed polyhydroxyalkylation has many advantages: one-pot, metalfree synthesis which proceeds at room temperature and atmospheric pressure; structural variety and commercial availability of monomers; high conversion yields, high regioselectivities, reasonable reaction times, scalability, functional groups that allow polymer chemical modification reactions and easy polymer purification.…”

Section: Introductionmentioning

confidence: 99%

Non-stoichiometric effect in the superacid-catalyzed polyhydroxyalkylation of biphenyl and 1-propyl isatin

Cruz‐Rosado

Romero‐Hernández

Ríos‐López

et al. 2023

High Performance Polymers

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An experimental study on the superacid-catalyzed polyhydroxyalkylation of biphenyl (A2 monomer) and 1-propyl isatin (B2 monomer) at non-stoichiometric conditions is presented. The produced high-performance polymers were characterized by gel permeation chromatography matrix-assisted laser-desorption/ionization-time-of-flight (MALDI-TOF), nuclear magnetic resonance and diffusion-ordered spectroscopy (DOSY). High molecular weights (Mw > 150,000 Da) and ultra-high molecular weights (Mw ∼ 900,000 Da) are obtained when B2 is used in excess, which agrees with the behavior observed at non-stoichiometric conditions for other superacid catalyzed polyhydroxyalkylations, contrary to the case when A2 is used in excess, where a reduction in molecular weight is obtained, as reported in a previous study from our group. A, B, and M types of linear polymer molecules, as well as C-type cycles, were observed from the MALDI-TOF data.

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Polyacylation for Ion Exchange Membrane Preparation

2024

Ion Exchange Membranes

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Room temperature, simple and efficient synthesis and functionalization of aromatic poly(arylene sulfide)s, poly(arylene sulfoxide)s and poly(arylene sulfone)s

Cited by 8 publications

References 39 publications

Separators and Membranes for Advanced Alkaline Water Electrolysis

Separators and Membranes for Advanced Alkaline Water Electrolysis

Non-stoichiometric effect in the superacid-catalyzed polyhydroxyalkylation of biphenyl and 1-propyl isatin

Polyacylation for Ion Exchange Membrane Preparation

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