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Selected Papers from "CNRS"

A topical collection in Polymers (ISSN 2073-4360). This collection belongs to the section "Innovation of Polymer Science and Technology".

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Institut Charles Gerhardt Montpellier (ICGM), University of Montpellier, CNRS, ENSCM, 34095 Montpellier, France
Interests: green and sustainable chemistry; building-blocks from biomass; biobased monomers and polymers
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Topical Collection Information

Dear Colleagues,

Present in all fields of science, the CNRS ranks among the world's leading research organizations for its excellent results in research and innovation. The CNRS is thus at the forefront of international rankings: second most visible research institution on the web, fourth in the Nature Index ranking, sixth patent applicant in France and eighth most innovative public research organization. The CNRS employs nearly 32,000 people in the service of research in more than 1100 laboratories for a budget of 3.4 billion euros.

This collection aims to highlight the cutting-edge studies of CNRS scientists in the fields of polymer science.

Dr. Sylvain Caillol
Guest Editor

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Keywords

  • polymer colloids
  • polymer nanostructure
  • biobased polymers
  • supramolecular polymers
  • biomedical applications

Published Papers (3 papers)

2024

Jump to: 2023

18 pages, 3246 KiB  
Article
Synthesis and Assessment of Novel Sustainable Antioxidants with Different Polymer Systems
by Agathe Mouren, Eric Pollet and Luc Avérous
Polymers 2024, 16(3), 413; https://doi.org/10.3390/polym16030413 - 1 Feb 2024
Cited by 2 | Viewed by 2022
Abstract
Antioxidants are essential to the polymer industry. The addition of antioxidants delays oxidation and material degradation during their processing and usage. Sustainable phenolic acids such as 4-hydroxybenzoic acid or 3,4-dihydroxybenzoic acid were selected. They were chemically modified by esterification to obtain various durable [...] Read more.
Antioxidants are essential to the polymer industry. The addition of antioxidants delays oxidation and material degradation during their processing and usage. Sustainable phenolic acids such as 4-hydroxybenzoic acid or 3,4-dihydroxybenzoic acid were selected. They were chemically modified by esterification to obtain various durable molecules, which were tested and then compared to resveratrol, a biobased antioxidant, and Irganox 1076, a well-known and very efficient fossil-based antioxidant. Different sensitive matrices were used, such as a thermoplastic polyolefin (a blend of PP and PE) and a purposely synthesized thermoplastic polyurethane. Several formulations were then produced, with the different antioxidants in varying amounts. The potential of these different systems was analyzed using various techniques and processes. In addition to antioxidant efficiency, other parameters were also evaluated, such as the evolution of the sample color. Finally, an accelerated aging protocol was set up to evaluate variations in polymer properties and estimate the evolution of the potential of different antioxidants tested over time and with aging. In conclusion, these environmentally friendly antioxidants make it possible to obtain high-performance materials with an efficiency comparable to that of the conventional ones, with variations according to the type of matrix considered. Full article
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2023

Jump to: 2024

20 pages, 13635 KiB  
Article
The Thermal and Mechanical Behaviour of Wood-PLA Composites Processed by Additive Manufacturing for Building Insulation
by Anis Bahar, Ameur El Amine Hamami, Ferhat Benmahiddine, Sofiane Belhabib, Rafik Belarbi and Sofiane Guessasma
Polymers 2023, 15(14), 3056; https://doi.org/10.3390/polym15143056 - 16 Jul 2023
Cited by 12 | Viewed by 2584
Abstract
This study was aimed at considering the potential of wood-based composites processed using additive manufacturing as insulators in the building sector. A polylactic acid blend with 30% wood particles was used as a feedstock material in fused filament technology. Its thermal and mechanical [...] Read more.
This study was aimed at considering the potential of wood-based composites processed using additive manufacturing as insulators in the building sector. A polylactic acid blend with 30% wood particles was used as a feedstock material in fused filament technology. Its thermal and mechanical properties were determined for various processing conditions, including printing temperature and infill rate. The results showed a minor contraction in its tensile performance as a result of the printing process. The printing temperature had a negligible effect on its stiffness and a limited influence on the other engineering constants, such as the tensile strength and ultimate stress. The thermal properties of printed structures have been found to significantly depend on the infill rate. Although the tested 3D printed wood-PLA material exhibited good thermal properties, which were tuneable using the printing conditions, its performance was still 38% to 57% lower compared to insulators such as the glass wool of the synthetic foams used in the building sector. Full article
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13 pages, 4750 KiB  
Article
Phosphonate-Functionalized Polycarbonates Synthesis through Ring-Opening Polymerization and Alternative Approaches
by Hien The Ho, Nam Hoai Nguyen, Marion Rollet, Trang N. T. Phan and Didier Gigmes
Polymers 2023, 15(4), 955; https://doi.org/10.3390/polym15040955 - 15 Feb 2023
Cited by 2 | Viewed by 2130
Abstract
Well-defined phosphonate-functionalized polycarbonate with low dispersity (Ð = 1.22) was synthesized using organocatalyzed ring-opening polymerization (ROP) of novel phosphonate-based cyclic monomers. Copolymerization was also performed to access different structures of phosphonate-containing polycarbonates (PC). Furthermore, phosphonate-functionalized PC was successfully synthesized using a combination [...] Read more.
Well-defined phosphonate-functionalized polycarbonate with low dispersity (Ð = 1.22) was synthesized using organocatalyzed ring-opening polymerization (ROP) of novel phosphonate-based cyclic monomers. Copolymerization was also performed to access different structures of phosphonate-containing polycarbonates (PC). Furthermore, phosphonate-functionalized PC was successfully synthesized using a combination of ROP and post-modification reaction. Full article
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