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Photofabrication of Biobased Polymers and Composites
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Photofabrication of Biobased Polymers and Composites

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 5541

Special Issue Editors

Dr. Alessandra Vitale

E-Mail Website
Guest Editor
Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
Interests: photopolymers; patterning; electrospinning
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Roberta Maria Bongiovanni

E-Mail Website
Guest Editor
Department of Applied Science and Technology-DISAT Politecnico di Torino Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Interests: polymer surface modification; fluoropolymers; cellulosic materials and composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue on Photofabrication of Biobased Polymers and Composites aims to bring together scientists working at universities, research institutes, and industries to discuss state-of-the-art research on the preparation and processing of polymers and polymer composites from biosources via photoinduced reactions.

In the last decade, the development of materials derived from biomass and produced with environmentally friendly processes has been progressing significantly. This intriguing movement is a result of growing environmental concerns, and the foreseen depletion of fossil resources calls for a more sustainable economy.

Photopolymerization and photoinduced processes are considered a green technology, owing to their low energy requirements, room temperature operation with high reaction rates, and lack of need for solvents. Highly sustainable polymer-based materials can thus be produced by applying photoinduced reactions to biobased monomers and precursors.

This timely Special Issue will survey recent progress in the development of biobased materials via photoinduced processes. The papers of this Special Issue will cover various topics, including the photopolymerization of biobased monomers, the photocrosslinking of biobased polymers, and the acquisition of biobased composites by photoinduced reactions as well as their applications.

We kindly invite you to submit a manuscript to this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Alessandra Vitale
Prof. Roberta Maria Bongiovanni
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. Materials 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 2600 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

  • photoinduced processes
  • biobased materials
  • biobased fillers
  • reversible crosslinking
  • biobased composites

Published Papers (2 papers)

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Research

14 pages, 2956 KiB  
Article
Biobased Composites by Photoinduced Polymerization of Cardanol Methacrylate with Microfibrillated Cellulose
by Alessandra Vitale, Samantha Molina-Gutiérrez, W. S. Jennifer Li, Sylvain Caillol, Vincent Ladmiral, Patrick Lacroix-Desmazes and Sara Dalle Vacche
Materials 2022, 15(1), 339; https://doi.org/10.3390/ma15010339 - 04 Jan 2022
Cited by 8 | Viewed by 2185
Abstract
Biobased monomers and green processes are key to producing sustainable materials. Cardanol, an aromatic compound obtained from cashew nut shells, may be conveniently functionalized, e.g., with epoxy or (meth)acrylate groups, to replace petroleum-based monomers. Photoinduced polymerization is recognized as a sustainable process, less [...] Read more.
Biobased monomers and green processes are key to producing sustainable materials. Cardanol, an aromatic compound obtained from cashew nut shells, may be conveniently functionalized, e.g., with epoxy or (meth)acrylate groups, to replace petroleum-based monomers. Photoinduced polymerization is recognized as a sustainable process, less energy intensive than thermal curing; however, cardanol-based UV-cured polymers have relatively low thermomechanical properties, making them mostly suitable as reactive diluents or in non-structural applications such as coatings. It is therefore convenient to combine them with biobased reinforcements, such as microfibrillated cellulose (MFC), to obtain composites with good mechanical properties. In this work a cardanol-based methacrylate monomer was photopolymerized in the presence of MFC to yield self-standing, flexible, and relatively transparent films with high thermal stability. The polymerization process was completed within few minutes even in the presence of filler, and the cellulosic filler was not affected by the photopolymerization process. Full article
(This article belongs to the Special Issue Photofabrication of Biobased Polymers and Composites)
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13 pages, 1396 KiB  
Article
Photocurable Coatings Based on Bio-Renewable Oligomers and Monomers
by Paulina Bednarczyk, Małgorzata Nowak, Karolina Mozelewska and Zbigniew Czech
Materials 2021, 14(24), 7731; https://doi.org/10.3390/ma14247731 - 15 Dec 2021
Cited by 10 | Viewed by 2727
Abstract
Due to long-term problems related to environmental protection, economic aspects, and waste management in the chemical industry, it is justified to develop renewable polymers as an alternative to synthetic polymers. Two kinds of acrylic bio-renewable components were used for the modification of acrylated [...] Read more.
Due to long-term problems related to environmental protection, economic aspects, and waste management in the chemical industry, it is justified to develop renewable polymers as an alternative to synthetic polymers. Two kinds of acrylic bio-renewable components were used for the modification of acrylated epoxidized soybean oil (AESO). The bio-based compositions used as photocurable binders to obtain the photocurable coatings with satisfactory properties and high bio content were then prepared. The kinetic of curing reaction of the oligomers and monomers towards radical photopolymerization and the properties of the cured coatings were fully investigated; the results are discussed in relation with the compounds’ structures. Important information about how to design and obtain renewable photocurable coatings with satisfactory properties was provided in this study. In this study, AESO resin was modified with renewable oligomer or (math)acrylate monomer to increase the reactivity and reduce the viscosity of the photoreactive system in order to obtain renewable and viable alternatives to petroleum-based polymeric materials with perfect film-forming properties. It turned out that both photopolymerization rate and hardness of cured coatings were increased significantly with the addition of modifiers; the use of a thiol modifier and change of the photoinitiator concentration allowed to improve the adhesion, hardness, and control of the photo-curing process. Full article
(This article belongs to the Special Issue Photofabrication of Biobased Polymers and Composites)
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