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Polymers
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Latest Advances in Photopolymerization
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Latest Advances in Photopolymerization

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

Deadline for manuscript submissions: 15 November 2024 | Viewed by 1781

Special Issue Editors

Dr. Camilla Noè

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Guest Editor
Department of Applied Science and Technology (DISAT), Politecnico di Torino, Turin, Italy
Interests: hydrogels; photopolymerization; 3D printing; coatings; composites; polymers
Dr. Andrea Cosola

E-Mail Website
Guest Editor
Laboratoire des Solides Irradiés (LSI), CEA/DRF/IRAMIS, École Polytechnique, Palaiseau, Île-de-France, France
Interests: photopolymerization; 3D printing; 4D printing; polymers; nanocomposites
Prof. Dr. José Manuel Gaspar Martinho

E-Mail Website
Guest Editor
Centro de Quimica Estrutural, Department of Chemical Engineering, Instituto Superior Tecnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Interests: polymers; colloids; hybrid materials; optical microscopy; biphotonic absorption; photophysic; photochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Photopolymerization technology is now undoubtedly rooted in our day-to-day lives. Being widely recognized as environment-friendly, energy-saving and relatively low-cost, photopolymerization processes are constantly under the magnifying glass due to both their broad applications in the coating, adhesive, ink, lithography and dentistry industries and their huge potential in additive manufacturing and other emerging fields.

However, the ongoing research on novel photopolymerizable systems is pushing the boundaries of this technology further and further, hinting at new possibilities and advanced applications.

The scope of this Special Issue, “Latest Progresses in Photopolymerization”, is to present original research articles and review papers on cutting-edge works ranging from the synthesis to processing, characterization and applications of novel photopolymerizable systems.

Dr. Camilla Noè
Dr. Andrea Cosola
Prof. Dr. José Manuel Gaspar Martinho
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

  • photopolymerization
  • polymers
  • 3D printing
  • coatings
  • composites

Published Papers (2 papers)

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Research

15 pages, 4578 KiB  
Article
Efficient Preparation of Poly(allyl diglycol carbonate) (PADC) Nuclear Track Detectors: UV Photopolymerization
by Guangshe Zhang, Li Zhang, Wencheng Gao, Riwei Xu and Kuke Ding
Polymers 2024, 16(13), 1891; https://doi.org/10.3390/polym16131891 - 2 Jul 2024
Viewed by 488
Abstract
The decay of radon gas in soil and buildings produces alpha radiation, which is the second leading cause of lung cancer in humans. Therefore, by conveniently detecting radon gas in the environment, potential sources of danger can be identified early, and necessary measures [...] Read more.
The decay of radon gas in soil and buildings produces alpha radiation, which is the second leading cause of lung cancer in humans. Therefore, by conveniently detecting radon gas in the environment, potential sources of danger can be identified early, and necessary measures can be taken to protect human health. Solid-state nuclear track detectors prepared from polyallyl diglycol carbonate (PADC) resin are the most sensitive detectors for alpha radiation released by radon gas. The traditional method of preparing PADC resin involves free radical thermal polymerization, which suffers from issues such as low polymerization efficiency, long processing time, and the occurrence of defects in the product. In this study, PADC resin was efficiently prepared using a UV initiator. Starting from the polymerization mechanism, experiments were designed using a controlled variable approach, and a rational polymerization apparatus was devised. By comparing the double bond conversion rate, transparency, hardness, and yellowness index of the polymers, the optimal initiator for PADC resin, 2-hydroxy-2-methyl-1-phenyl-1-propanone (1173), was selected. The influence of irradiation intensity, irradiation time, and UV initiator dosage was investigated. The performance of the polymers, including double bond conversion rate, optical properties, dynamic mechanical properties, etching rate, and track detection efficiency, was analyzed. The experimental conditions for preparing PADC resin were optimized: irradiation intensity of 12 mW/cm2, irradiation time of 25 min, and UV initiator dosage of 5 parts. The resulting resin polymer had a double bond conversion rate of 93.2% and a track detection efficiency of 0.714. Full article
(This article belongs to the Special Issue Latest Advances in Photopolymerization)
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16 pages, 4686 KiB  
Article
Fully Bio-Based Polymer Composites: Preparation, Characterization, and LCD 3D Printing
by Giovanna Colucci, Francesca Sacchi, Federica Bondioli and Massimo Messori
Polymers 2024, 16(9), 1272; https://doi.org/10.3390/polym16091272 - 2 May 2024
Viewed by 839
Abstract
The present work aimed to prepare novel bio-based composites by adding fillers coming from agro-wastes to an acrylate epoxidized soybean oil (AESO) resin, using liquid crystal display (LCD) 3D printing. Different photocurable formulations were prepared by varying the reactive diluents, iso-bornyl methacrylate (IBOMA) [...] Read more.
The present work aimed to prepare novel bio-based composites by adding fillers coming from agro-wastes to an acrylate epoxidized soybean oil (AESO) resin, using liquid crystal display (LCD) 3D printing. Different photocurable formulations were prepared by varying the reactive diluents, iso-bornyl methacrylate (IBOMA) and tetrahydrofurfuryl acrylate (THFA). Then, two fillers derived from different industrial wastes, corn (GTF) and wine (WPL-CF) by-products, were added to the AESO-based formulations to develop polymer composites with improved properties. The printability by LCD of the photocurable formulations was widely studied. Bio-based objects with different geometries were realized, showing printing accuracy, layer adhesion, and accurate details. The thermo-mechanical and mechanical properties of the 3D-printed composites were tested by TGA, DMA, and tensile tests. The results revealed that the agro-wastes’ addition led to a remarkable increase in the elastic modulus, tensile strength, and glass transition temperature in the glassy state for the systems containing IBOMA and for flexible structures in the rubbery region for systems containing THFA. AESO-based polymers demonstrated tunable properties, varying from rigid to flexible, in the presence of different diluents and biofillers. This finding paves the way for the use of this kind of composite in applications, such as biomedical for the realization of prostheses. Full article
(This article belongs to the Special Issue Latest Advances in Photopolymerization)
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