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Polymers
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Crystalline Polymer Materials for Soft Electronics
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Crystalline Polymer Materials for Soft Electronics

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

Deadline for manuscript submissions: closed (25 May 2024) | Viewed by 3412

Special Issue Editors

Prof. Dr. Álvaro W. Mombrú

E-Mail Website1 Website2
Guest Editor
Centro NanoMat/CryssMat-Lab. & Grupo Física, DETEMA, Facultad de Química-Universidad de la República (UdelaR), Montevideo CP 11800, Uruguay
Interests: materials science; solid-state chemistry; solid-state physics; nanoscience; crystallography
Special Issues, Collections and Topics in MDPI journals
Dr. Ricardo Faccio

E-Mail Website
Guest Editor
Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay
Interests: nanomaterials; computational simulation; solar cells; li-ion batteries; polymer composites; carbon nanomaterials
Special Issues, Collections and Topics in MDPI journals
Dr. Mariano Romero

E-Mail Website
Guest Editor
Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay
Interests: polymer nanocomposites; hybrid organic–inorganic nanomaterials; electronic–ionic transport
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Crystalline polymer materials exhibiting interesting electrical, electrochemical and electrochromic properties have been applied to many fields for sensing, catalysis, energy conversion and storage.

Recently, and particularly due to their light weight and flexibility, more people have become interested in their use in emerging technologies, such as soft electronics including bioelectronic and neuromorphic devices.

This Special Issue invites researchers to submit original articles and reviews on crystalline polymer materials, including semi-crystalline and liquid crystal polymers, with a particular focus on ionic, electronic and photonic properties for advanced soft electronic technologies.

Hybrid nanomaterials based on crystalline polymers with molecular, macromolecular and nanostructure additives are also welcome. Experimental, computational, and particularly, joint experimental–computational research revealing new insights on structure–properties correlations are welcome.

Prof. Dr. Álvaro W. Mombrú
Dr. Ricardo Faccio
Dr. Mariano Romero
Guest Editors

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

  • semi-crystalline polymers
  • liquid crystalline polymers
  • hybrid nanomaterials based on crystalline polymers
  • soft electronics
  • ionic, electronic and photonic
  • experimental and computational approaches

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Published Papers (2 papers)

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Research

14 pages, 3916 KiB  
Article
Exploring Mixed Ionic–Electronic-Conducting PVA/PEDOT:PSS Hydrogels as Channel Materials for Organic Electrochemical Transistors
by Tatiana Gregorio, Dominique Mombrú, Mariano Romero, Ricardo Faccio and Álvaro W. Mombrú
Polymers 2024, 16(11), 1478; https://doi.org/10.3390/polym16111478 - 23 May 2024
Viewed by 1326
Abstract
Here, we report the preparation and evaluation of PVA/PEDOT:PSS-conducting hydrogels working as channel materials for OECT applications, focusing on the understanding of their charge transport and transfer properties. Our conducting hydrogels are based on crosslinked PVA with PEDOT:PSS interacting via hydrogen bonding and [...] Read more.
Here, we report the preparation and evaluation of PVA/PEDOT:PSS-conducting hydrogels working as channel materials for OECT applications, focusing on the understanding of their charge transport and transfer properties. Our conducting hydrogels are based on crosslinked PVA with PEDOT:PSS interacting via hydrogen bonding and exhibit an excellent swelling ratio of ~180–200% w/w. Our electrochemical impedance studies indicate that the charge transport and transfer processes at the channel material based on conducting hydrogels are not trivial compared to conducting polymeric films. The most relevant feature is that the ionic transport through the swollen hydrogel is clearly different from the transport through the solution, and the charge transfer and diffusion processes govern the low-frequency regime. In addition, we have performed in operando Raman spectroscopy analyses in the OECT devices supported by first-principle computational simulations corroborating the doping/de-doping processes under different applied gate voltages. The maximum transconductance (gm~1.05 μS) and maximum volumetric capacitance (C*~2.3 F.cm−3) values indicate that these conducting hydrogels can be promising candidates as channel materials for OECT devices. Full article
(This article belongs to the Special Issue Crystalline Polymer Materials for Soft Electronics)
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16 pages, 6470 KiB  
Article
Mechanical Behavior of Lithium-Ion Battery Separators under Uniaxial and Biaxial Loading Conditions
by Sahand Shamchi, Behzad V. Farahani, Marian Bulla and Stefan Kolling
Polymers 2024, 16(8), 1174; https://doi.org/10.3390/polym16081174 - 22 Apr 2024
Viewed by 1505
Abstract
The mechanical integrity of two commercially available lithium-ion battery separators was investigated under uniaxial and biaxial loading conditions. Two dry-processed microporous films with polypropylene (PP)/polyethylene (PE)/polypropylene (PP) compositions were studied: Celgard H2010 Trilayer and Celgard Q20S1HX Ceramic-Coated Trilayer. The uniaxial tests were carried [...] Read more.
The mechanical integrity of two commercially available lithium-ion battery separators was investigated under uniaxial and biaxial loading conditions. Two dry-processed microporous films with polypropylene (PP)/polyethylene (PE)/polypropylene (PP) compositions were studied: Celgard H2010 Trilayer and Celgard Q20S1HX Ceramic-Coated Trilayer. The uniaxial tests were carried out along the machine direction (MD), transverse direction (TD), and diagonal direction (DD). In order to generate a state of in-plane biaxial tension, a pneumatic bulge test setup was prioritized over the commonly performed punch test in an attempt to eliminate the effects of contact friction. The biaxial flow stress–strain behavior of the membranes was deduced via the Panknin–Kruglov method coupled with a 3D Digital Image Correlation (DIC) technique. The findings demonstrate a high degree of in-plane anisotropy in both membranes. The ceramic coating was found to negatively affect the mechanical performance of the trilayer microporous separator, compromising its strength and stretchability, while preserving its failure mode. Derived from experimentally calibrated constitutive models, a finite element model was developed using the explicit solver OpenRadioss. The numerical model was capable of predicting the biaxial deformation of the semicrystalline membranes up until failure, showing a fairly good correlation with the experimental observations. Full article
(This article belongs to the Special Issue Crystalline Polymer Materials for Soft Electronics)
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