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Ferrocene-Containing Porous Poly(Ionic Liquid) Membranes: Synthesis and Application as Sacrificial Template for Porous Iron Oxide Films
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).ORCID iD: 0000-0003-1016-5135
Number of Authors: 42021 (English)In: Macromolecular rapid communications, ISSN 1022-1336, E-ISSN 1521-3927, Vol. 42, no 13, article id 2100077Article in journal (Refereed) Published
Abstract [en]

Herein, the fabrication of iron-containing porous polyelectrolyte membranes (PPMs) via ionic complexation between an imidazolium-based poly(ionic liquid) (PIL) and 1,1-ferrocenedicarboxylic acid is reported. The key parameters to control the microstructure of porous hybrid membranes are investigated in detail. Further aerobic pyrolysis of such porous hybrid membranes at 900 °C can transfer the ferrocene-containing PPMs into freestanding porous iron oxide films. This process points out a sacrificial template function of porous poly(ionic liquid) membranes in the fabrication of porous metal oxide films.

Place, publisher, year, edition, pages
2021. Vol. 42, no 13, article id 2100077
Keywords [en]
ferrocene, poly(ionic liquid), porous iron oxide films, porous polyelectrolyte membranes
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-195764DOI: 10.1002/marc.202100077ISI: 000656569100001PubMedID: 34061421OAI: oai:DiVA.org:su-195764DiVA, id: diva2:1588015
Available from: 2021-08-26 Created: 2021-08-26 Last updated: 2023-02-27Bibliographically approved
In thesis
1. Functional hybrid and composite porous membranes derived from imidazolium-type poly(ionic liquid)
Open this publication in new window or tab >>Functional hybrid and composite porous membranes derived from imidazolium-type poly(ionic liquid)
2023 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Poly(ionic liquid)s (PIL)s, as a subclass of polyelectrolytes, are composed of polymeric backbones with ionic liquid (IL)-based species in each repeating unit. Recent studies have deepened the understanding of the PIL concept in terms of characteristics, functions and applications in comparison to classical ILs and traditional polyelectrolytes. During the past two decades, PILs have developed themselves into an interdisciplinary subject among various research areas such as polymer science, materials science, catalysis, separation and sensing. Currently, the chemistry and applications of conventional polyelectrolytes are being expanded forward by the PIL concept. 

This PhD thesis deals with PIL-based porous hybrid and composite membranes. It is motivated by the growing demand on functional porous polymer membranes, in particularly, porous polyelectrolyte membranes in both industry and academia. By applying PILs as building blocks in membranes, the as-prepared porous PIL membranes combine certain desirable properties of ILs and common polymers with a wider potential to satisfy this demand. As a step further, the incorporation of functional guest substances on a molecular or nanoscale can enable new functionalities of porous membranes and broaden their application scope. 

The aim of this thesis is to develop synthetic approaches to fabricate porous PIL-based membranes based on hybridization and composition of a cationic PIL and a guest substance, and explore their diverse functions. Herein, fabrication methods based on two mechanisms were proposed and investigated. First, electrostatic complexation between a cationic hydrophobic PIL and a weak poly-/multi-acid. Second, ice-assisted phase separation of a hydrophobic PIL in water when in contact with a multi-acid compound as an ionic crosslinker. In following, task-specific functions were built up in porous PIL membranes via addition of specific metal-containing substances. This thesis content is inherently interdisciplinary, as it combines polymer chemistry and processing, membrane fabrication and materials science to secure its success in implementation, and this thesis advances the design and application scope of porous polyelectrolyte membranes.

Place, publisher, year, edition, pages
Stockholm: Department of Materials and Environmental Chemistry, Stockholm University, 2023. p. 50
Keywords
poly(ionic liquid), porous polyelectrolyte membranes, composite materials, functional membranes
National Category
Materials Chemistry Physical Chemistry
Research subject
Materials Chemistry
Identifiers
urn:nbn:se:su:diva-215068 (URN)978-91-8014-216-8 (ISBN)978-91-8014-217-5 (ISBN)
Public defence
2023-04-12, Magnélisalen, Kemiska övningslaboratoriet, Svante Arrhenius väg 16 B, Stockholm, 13:00 (English)
Opponent
Supervisors
Available from: 2023-03-20 Created: 2023-02-27 Last updated: 2023-03-15Bibliographically approved

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Kheirabad, Atefeh KhorsandGarakani, Sadaf SaeediTan, LiangxiaoYuan, Jiayin

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