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Functional Polymers for Catalysts

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 April 2026) | Viewed by 837

Special Issue Editors


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Guest Editor
Department of Research and Innovation, RMIT University, Melbourne, VIC 3001, Australia
Interests: H2 generation; ammonia synthesis and combustion; CO2 capture and conversion; sustainable fuels and chemicals
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Research and Innovation, RMIT University, Melbourne, VIC 3001, Australia
Interests: CO2 conversion; sustainable fuels; metal–organic frameworks

Special Issue Information

Dear Colleagues,

We are preparing a Special Issue in the Polymers journal focusing on polymer-supported and functionalized polymer catalysts. This Special Issue invites contributions that highlight the design, synthesis, and application of polymer-based catalytic systems in energy and environmental technologies. We welcome original research, reviews, and perspectives advancing catalytic science for sustainable processes.

Polymer-supported and functionalized polymer catalysts are advanced catalytic systems in which active catalytic centres—such as metal complexes, nanoparticles, or organocatalysts—are immobilized on or integrated into polymeric materials. The polymer backbone provides mechanical stability, high surface area, and controlled porosity, allowing enhanced catalytic performance, easier recovery, and reusability. Functionalization, achieved through grafting or copolymerization, introduces tailored chemical groups, allowing for fine control over catalyst activity, selectivity, and the balance between hydrophobic/hydrophilic properties.

In energy applications, these catalysts are employed in hydrogen production, fuel cell reactions, and CO2 conversion to fuels or value-added chemicals, supporting decarbonization. For example, polymer-supported photocatalysts enhance solar-driven water splitting, while polymer membranes with embedded catalytic species facilitate selective ion or gas transport in electrochemical devices. In environmental remediation, they are used in advanced oxidation processes, pollutant adsorption, and catalytic degradation of persistent organic contaminants, helping address water and air quality challenges.

Their lightweight, flexible design enables integration into reactors, membranes, and coatings, making them suitable for scalable, continuous-flow processes. Combining catalyst recyclability with reduced metal leaching and precise control of active sites aligns with principles of green chemistry.

Dr. Deshetti Jampaiah
Dr. Paramita Koley
Guest Editors

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Keywords

  • polymer-supported catalysts
  • functionalized polymers
  • immobilized catalysts
  • catalytic membranes
  • CO2 capture
  • photocatalysis
  • green hydrogen generation
  • electrocatalysis
  • pollutant degradation
  • water purification
  • environmental remediation
  • sustainable energy
  • waste valorization
  • green chemistry
  • continuous-flow catalysis

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Published Papers (1 paper)

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Research

15 pages, 10627 KB  
Article
Functional Poly(Ionic Liquid)s: Catalytic Conversion of CO2
by Maria Atlaskina, Kirill Smorodin, Sergey Kryuchkov, Artem Atlaskin, Alexander Sysoev, Olga Kazarina, Anton Petukhov, Andrey Vorotyntsev and Ilya Vorotyntsev
Polymers 2026, 18(5), 549; https://doi.org/10.3390/polym18050549 - 25 Feb 2026
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Abstract
This study reports the synthesis and catalytic evaluation of a series of imidazolium-based polymeric ionic liquids (PILs) for the cycloaddition of CO2 to epichlorohydrin (ECH). The synthesized catalysts include homopolymers, poly(3-hydroxyethyl-1-vinylimidazole chloride) (p[HVIm][Cl]) and poly(3-carboxymethyl-1-vinylimidazole chloride) (p[CMVIm][Cl]), and their block copolymers with [...] Read more.
This study reports the synthesis and catalytic evaluation of a series of imidazolium-based polymeric ionic liquids (PILs) for the cycloaddition of CO2 to epichlorohydrin (ECH). The synthesized catalysts include homopolymers, poly(3-hydroxyethyl-1-vinylimidazole chloride) (p[HVIm][Cl]) and poly(3-carboxymethyl-1-vinylimidazole chloride) (p[CMVIm][Cl]), and their block copolymers with polystyrene, synthesized for the first time, pS-b-p[HVIm][Cl] and pS-b-p[CMVIm][Cl]. Structural characterization by NMR, IR spectroscopy, and gel permeation chromatography confirmed the successful synthesis. The block copolymers exhibited a low polydispersity index (PDI 1.1–1.2), which is indicative of homogeneous chain lengths and the propensity to form ordered nanostructures, whereas the homopolymers showed higher PDI (2.4–2.9). Catalytic testing at 90 °C and 1 MPa CO2 for 4 h revealed a clear activity trend: p[CMVIm][Cl] < p[HVIm][Cl] < pS-b-p[CMVIm][Cl] < pS-b-p[HVIm][Cl], with conversions exceeding 75% for all catalysts and a maximum of 82.69% for pS-b-p[HVIm][Cl]. These results demonstrate that the catalytic performance of PILs is governed by a synergistic interplay between the local chemical functionality of the ionic moiety and the overall polymer architecture. Based on these results, the synthesized polymeric ionic liquids, particularly pS-b-p[HVIm][Cl], demonstrate strong potential for creating multifunctional materials. Their ability to self-assemble into ordered nanostructures with distinct hydrophobic and hydrophilic domains provides a foundational architecture for combined gas separation and catalysis. The observed “micellar catalytic effect”, which enhances local reagent concentration near active sites, could be leveraged in a membrane reactor to simultaneously capture and convert CO2 directly within the membrane. This integrated “separation–reaction” approach represents a promising strategy for advancing circular carbon economy technologies. Full article
(This article belongs to the Special Issue Functional Polymers for Catalysts)
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