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Polymers
Special Issues
Functional Microcellular Polymer-Foams through Emulsion-Templated Synthesis
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Functional Microcellular Polymer-Foams through Emulsion-Templated Synthesis

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

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 6469

Special Issue Editor

Dr. Sebastijan Kovačič

E-Mail Website
Guest Editor
Department of Polymer Chemistry and Technology, National Institute of Chemistry, Ljubljana, Slovenia
Interests: application of the tools of polymer chemistry; production of a variety of porous polymeric materials with desired properties and a high degree of control; emulsion/suspension preparation and stability; development of porous semiconducting, nanocomposites, polyelectrolytes; hierarchical porous carbon foams from these emulsions/suspensions

Special Issue Information

Emulsion-templated microcellular polymer foams are a special kind of porous polymeric material that has been around now for many years. The versatility of these polymer foams stems from their specific morphological features, such as hierarchically structured and three-dimensionally connected morphology, consisting of quasispherical voids that are linked via numerous much smaller circular “holes” referred to as windows. This quite original morphology makes them attractive for a wide range of applications, including cell culturing scaffolds, reagent and catalyst supports, or for ion exchange and environmental remediation.

However, contemporary expectations go beyond just controlling the morphological features of emulsion-templated polymer foams. Advanced applications require multifunctional polymer foams and a fundamental understanding of the relationship between their structure and function. Despite the tremendous progress of the conventional post-polymerization surface functionalization strategies, facile synthetic routes to obtain multifunctional emulsion-templated polymer foams, such as these containing various functional groups and/or nanosized-particles embedded in the pore surfaces, have attracted increasing attention in recent years.

Therefore, the Guest Editor is pleased to launch this Special Issue and invite researchers to contribute their reviews and original papers on the development of multifunctional microcellular polymer foams prepared through emulsion-templated synthesis, as well as on the study of potential new applications for these porous polymers.

Dr. Sebastijan Kovačič
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Emulsion templating
  • High-, medium-, low internal phase emulsions
  • Porous nanocomposites, hydrogels, or carbons
  • Hierarchical porous polymers
  • PolyHIPEs
  • Polymer chemistry

Published Papers (2 papers)

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Research

14 pages, 8086 KiB  
Article
Styrene–Acrylic Emulsion with “Transition Layer” for Damping Coating: Synthesis and Characterization
by Daoyuan Chen, Mingjin Ding, Zhixiong Huang and Yanbing Wang
Polymers 2021, 13(9), 1406; https://doi.org/10.3390/polym13091406 - 27 Apr 2021
Cited by 7 | Viewed by 3479
Abstract
In order to study the dynamic mechanical properties of styrene–acrylic latex with a core/shell structure, a variety of latexes were synthesized by semi-continuous seeded emulsion polymerization based on “particle design” with the same material. The latexes were characterized by rotary viscosimeter, dynamic light [...] Read more.
In order to study the dynamic mechanical properties of styrene–acrylic latex with a core/shell structure, a variety of latexes were synthesized by semi-continuous seeded emulsion polymerization based on “particle design” with the same material. The latexes were characterized by rotary viscosimeter, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM), dynamic mechanical analysis (DMA), and universal testing machine. The effects of difference at the glass transition temperature (Tg) of core and shell and the introduction of the “transition layer” on the damping and mechanical properties of latex film were studied. The results indicate that as the Tg of core and shell gets closer, the better the compatibility of core and shell, from phase separation to phase continuity. Furthermore, the introduction of the “transition layer” can effectively improve the tensile strength and tan δ (max) of the latex film. The tensile strength and maximum loss factor (f = 1 Hz) of latex with the “transition layer” increased by 36.73% and 29.11% respectively compared with the latex without the “transition layer”. This work provides a reference for the design of emulsion for damping coating. Full article
(This article belongs to the Special Issue Functional Microcellular Polymer-Foams through Emulsion-Templated Synthesis)
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16 pages, 3469 KiB  
Article
Flow-Through PolyHIPE Silver-Based Catalytic Reactor
by Rok Mravljak, Ožbej Bizjak, Benjamin Božič, Matejka Podlogar and Aleš Podgornik
Polymers 2021, 13(6), 880; https://doi.org/10.3390/polym13060880 - 12 Mar 2021
Cited by 10 | Viewed by 2322
Abstract
Catalytic reactors performing continuously are an important step towards more efficient and controllable processes compared to the batch operation mode. For this purpose, homogenous high internal phase emulsion polymer materials with an immobilized silver catalyst were prepared and used as a continuous plug [...] Read more.
Catalytic reactors performing continuously are an important step towards more efficient and controllable processes compared to the batch operation mode. For this purpose, homogenous high internal phase emulsion polymer materials with an immobilized silver catalyst were prepared and used as a continuous plug flow reactor. Porous material with epoxide groups was functionalized to bear aldehyde groups which were used to reduce silver ions using Tollens reagent. Investigation of various parameters revealed that the mass of deposited silver depends on the aldehyde concentration as well as the composition of Tollens reagent. Nanoparticles formed on the pore surface showed high crystallinity with a cuboctahedra crystal shape and highly uniform surface coverage. The example of the 4-nitrophenol catalytic reduction in a continuous process was studied and demonstrated to be dependent on the mass of deposited silver. Furthermore, productivity increased with the volumetric silver density and flow rate, and it was preserved during prolonged usage and storage. Full article
(This article belongs to the Special Issue Functional Microcellular Polymer-Foams through Emulsion-Templated Synthesis)
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