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Development of Polymer Materials as Functional Coatings: 2nd Edition

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

Deadline for manuscript submissions: 23 January 2026 | Viewed by 333

Special Issue Editor


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Guest Editor
Department of Electrical and Computer Engineering, Kennesaw State University, Marietta, GA 30060, USA
Interests: solid-state Li-ion batteries; nanomaterials; ionic and electronic conductive polymer; flexible electronics; solid-state Li-ion batteries; energy storage and conversion
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Special Issue Information

Dear Colleagues,

Polymer materials stand out as the predominant choice for crafting functional coatings with exceptional properties. They play a pivotal role in enhancing the performance, longevity, and aesthetics of diverse materials and surfaces, including mechanical rigidity, durability, resistance (to chemicals, heat, UV light, etc.), and functionality (optical, electrical, magnetic, electrochemical, thermal, waterproofing, adhesive, etc.). They have found wide applications, encompassing abrasion- and scratch-resistance coatings, optical coatings, barrier coatings, corrosion-resistance coatings, antibacterial coatings, electrically conductive coatings, self-cleaning coatings (superhydrophilic and superhydrophobic), heat-resistance coatings, flame-retardant coatings, and more.

In this Special Issue, we welcome contributions that investigate the design and synthesis of innovative polymers and/or nanocomposites as coating materials, along with the exploration of new fabrication strategies to achieve optimal coatings. We also welcome the application of functional coatings in optical, electrical, electrochemical, mechanical devices, and many more.

Dr. Beibei Jiang
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 250 words) can be sent to the Editorial Office for assessment.

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

  • polymer
  • nanocomposites
  • functional coating
  • coating strategies and methods

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Published Papers (1 paper)

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Research

21 pages, 8385 KB  
Article
Substituting Fossil-Based into Bio-Based Isocyanates for Resin and Dispersion Polyurethane Coatings: Evaluation of Thermal, Mechanical, and Chemical Performance
by Pieter Samyn and Patrick Cosemans
Polymers 2025, 17(24), 3301; https://doi.org/10.3390/polym17243301 - 12 Dec 2025
Viewed by 163
Abstract
This study investigates the substitution of fossil-based isocyanates with bio-based alternatives in polyurethane resin (PU) coatings and polyurethane dispersion (PUD) coatings, focusing on mechanical and thermal performance. The coatings were formulated using bio-based pentamethylene diisocyanate (PDI) and a range of fossil-based hexamethylene diisocyanate [...] Read more.
This study investigates the substitution of fossil-based isocyanates with bio-based alternatives in polyurethane resin (PU) coatings and polyurethane dispersion (PUD) coatings, focusing on mechanical and thermal performance. The coatings were formulated using bio-based pentamethylene diisocyanate (PDI) and a range of fossil-based hexamethylene diisocyanate (HDI) trimers, combined with either a polyester polyol or a polyacrylate polyol. Differential-scanning calorimetry analysis revealed that PDI-based coatings exhibit higher reactivity during crosslinking, resulting in higher glass transition temperatures. Thermogravimetric analysis showed lower thermal stability compared to HDI-based polyurethanes, indicating increased rigidity but reduced thermal resilience. Mechanical testing of the coatings on wood showed superior microhardness, scratch resistance, and wear resistance for PDI-based coatings, particularly when combined with polyester polyols. Microscopic surface evaluation and roughness analysis confirmed smoother morphologies and lower crack densities in PDI-polyester coatings. Gloss and water contact angle measurements further demonstrated improved surface uniformity and hydrophobicity for PDI-based coatings. The FTIR spectroscopy validated the chemical integrity and more intense hydrogen bonding for PDI-based coatings. The post-wear spectra indicated chemical oxidation and surface rearrangements in PDI-based systems and mechanical degradation with chain scission for HDI-based coatings. Overall, the study highlights that bio-based PDI trimers can effectively replace fossil-based HDI trimers in PU and PUD coatings without compromising mechanical performance, especially when paired with polyester polyols. These findings support the development of more sustainable polyurethane coatings with enhanced durability and environmental compatibility. Full article
(This article belongs to the Special Issue Development of Polymer Materials as Functional Coatings: 2nd Edition)
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