Advances in Plasma Processes for Polymers, 3rd Edition

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 3570

Special Issue Editor


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Guest Editor
Electrical Engineering, College of Engineering, Milligan University, Johnson City, TN 37682, USA
Interests: atmospheric pressure plasma; microplasma jet device; plasma polymerization; solution plasma; bio applications; microdischarge; Dielectric Barrier Discharge (DBD); high-pressure plasma; plasma thruster; ion propulsion; flexible microplasma thruster; plasma cancer therapy; plasma endodontics; Polymer Light-Emitting Diodes (PLEDs); short-time and long-time (life time) discharge characteristics of plasma display panel and plasma devices
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Special Issue Information

Dear Colleagues,

Polymerized nanoparticles and nanofibers can be prepared using various processes, such as chemical synthesis, the electrochemical method, electrospinning, ultrasonic irradiation, hard and soft templates, seeding polymerization, interfacial polymerization, and plasma polymerization. Among these processes, plasma polymerization and aerosol-through-plasma (A-t-P) processes have versatile advantages, particularly because they are “dry” processes, for the deposition of plasma polymer films and carbon-based materials with functional properties suitable for a wide range of applications, such as electronic and optical devices, protective coatings, and biomedical materials. Furthermore, it is well known that plasma polymers are highly cross-linked, pinhole-free, branched, insoluble, and adhere well to most substrates. In order to synthesize polymer films using plasma processes, it is critical to increase the density and electron temperature of plasma during plasma polymerization.

This Special Issue aims to compile original and cutting-edge research in the fields of plasma processing, polymerization, synthesis, characterization, treatment, modification, manufacturing, and applications of functional plasma-processed polymers.

Dr. Choon-Sang Park
Guest Editor

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Keywords

  • low-pressure plasma
  • atmospheric pressure plasma
  • plasma process
  • plasma polymerization
  • plasma synthesis
  • plasma deposition
  • dielectric barrier discharge
  • fragmentation
  • recombination
  • polymer
  • conductive polymer
  • copolymer
  • plasma treatment
  • surface modification
  • large area treatment and deposition

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Published Papers (3 papers)

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Research

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12 pages, 5328 KiB  
Article
Electric Field Effect of the Plasma-Initiated Polymerization of Methyl Methacrylate: A Negatively Charged Long-Lived Radical
by Jiayu Rui, Siru Cheng, He Ren, Sheng Cui and Jian Huang
Polymers 2024, 16(11), 1497; https://doi.org/10.3390/polym16111497 - 24 May 2024
Viewed by 759
Abstract
Plasma-initiated polymerization (PIP) is generally attributed to a radical process due to its inhibiting property. However, its unique polymerization behaviors like long-lived radical and solvent effect do not comply well with the traditional radical mechanism. Herein, the PIP of methyl methacrylate (MMA) was [...] Read more.
Plasma-initiated polymerization (PIP) is generally attributed to a radical process due to its inhibiting property. However, its unique polymerization behaviors like long-lived radical and solvent effect do not comply well with the traditional radical mechanism. Herein, the PIP of methyl methacrylate (MMA) was conducted in a high-voltage DC electric field to investigate the charged nature of its radicals. Consequently, the polymerization presented a preferential distribution of polymers at the anode but not the cathode, revealing the negatively charged nature of the growing radicals. An acceleration phenomenon, accompanied by the growth in molecular weights and the reduction in molecular weight distributions (Ð), was observed at the voltages above 16 kV, suggesting the dissociation of ion pairs of growing radicals. The PIP yielded PMMA with analogous chemical and steric structures to those of PMMA from traditional radical initiation, whether in the presence or absence of the external electric field. This work offers new insights into the PIP of vinyl monomers, wherein a one-electron transfer reaction is inferred to be involved in the monomer activation. Full article
(This article belongs to the Special Issue Advances in Plasma Processes for Polymers, 3rd Edition)
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20 pages, 23559 KiB  
Article
Stable Surface Modification by Cold Atmospheric-Pressure Plasma: Comparative Study on Cellulose-Based and Synthetic Polymers
by Alina Silvia Chiper and Gabriela Borcia
Polymers 2023, 15(20), 4172; https://doi.org/10.3390/polym15204172 - 20 Oct 2023
Cited by 3 | Viewed by 1360
Abstract
This study’s aim is a comparison of the plasma-induced effects on polymers exposed in helium and argon gaseous environments in a pulsed dielectric barrier discharge at atmospheric pressure. Cellulose-based and synthetic polymers are tested with regard to a range of parameters, such as [...] Read more.
This study’s aim is a comparison of the plasma-induced effects on polymers exposed in helium and argon gaseous environments in a pulsed dielectric barrier discharge at atmospheric pressure. Cellulose-based and synthetic polymers are tested with regard to a range of parameters, such as wettability, adhesion, surface energy and polarity, the oxygen amount in their structure, and surface morphology. The surface properties are analyzed by contact angle measurements, X-ray photoelectron spectroscopy, and scanning electron microscopy images. The results point to the efficient and remarkably stable modifications of the plasma-exposed surfaces, such as their enhanced adhesion, surface energy, and oxygen incorporation. Additionally, plasma provides significant oxygen uptake in cellulose-based materials that bear already prior to treatment a high amount of oxygen in their structure. The comparison between the properties of the non-permeable, homogeneous, smooth-surface synthetic polymer and those of the loosely packed, porous, heterogeneous cellulose-based polymers points to the different rates of plasma-induced modification, whereby a progressive alteration of cellulosic surface properties over much larger ranges of exposure durations is noted. Present experimental conditions ensure mild treatments on such sensitive material, such as paper, and this is without alterations of the surface morphology and the physical degradation of the material over a large range of treatment duration. Full article
(This article belongs to the Special Issue Advances in Plasma Processes for Polymers, 3rd Edition)
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Review

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31 pages, 15443 KiB  
Review
A Review of Plasma-Synthesized and Plasma Surface-Modified Piezoelectric Polymer Films for Nanogenerators and Sensors
by Eun-Young Jung, Habeeb Olaitan Suleiman, Heung-Sik Tae and Choon-Sang Park
Polymers 2024, 16(11), 1548; https://doi.org/10.3390/polym16111548 - 30 May 2024
Viewed by 896
Abstract
In this review, we introduce recently developed plasma-based approaches for depositing and treating piezoelectric nanoparticles (NPs) and piezoelectric polymer films for nanogenerator (NG) and sensor applications. We also present the properties and an overview of recently synthesized or modified piezoelectric materials on piezoelectric [...] Read more.
In this review, we introduce recently developed plasma-based approaches for depositing and treating piezoelectric nanoparticles (NPs) and piezoelectric polymer films for nanogenerator (NG) and sensor applications. We also present the properties and an overview of recently synthesized or modified piezoelectric materials on piezoelectric polymers to highlight the existing challenges and future directions of plasma methods under vacuum, low pressure, and ambient air conditions. The various plasma processes involved in piezoelectric NGs and sensors, including plasma-based vapor deposition, dielectric barrier discharge, and surface modification, are introduced and summarized for controlling various surface properties (etching, roughening, crosslinking, functionalization, and crystallinity). Full article
(This article belongs to the Special Issue Advances in Plasma Processes for Polymers, 3rd Edition)
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