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Polymers
Special Issues
Preparation and Properties of Polymer Materials from Biomass
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Preparation and Properties of Polymer Materials from Biomass

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biomacromolecules, Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 1726

Special Issue Editor

Dr. Vladimir A. Belyy

E-Mail Website
Guest Editor
Institute of Chemistry of the Federal Research Center of the Komi Research Center of the Ural Branch of the Russian Academy of Sciences, 167982 Syktyvkar, Russia
Interests: biomass conversion; biofuel production; biomass; structural characterization; thermogravimetric analysis; rheology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Biomass feedstocks have valuable potential for the development of sustainable polymers—a vitally important alternative to fossil-based synthetic polymers. Recently, a significant amount of progress has been made, paving the way for the preparation of bio-based materials from plant and extracellular biopolymers, as well as from vegetable oils, terpenes, lactones and polyphenols. This area of research is associated with the challenge of improving the properties of polymers from biomass to achieve a competitive level of properties, such as those of fossil-based materials. The Special Issue, entitled “Preparation and Properties of Polymers from Biomass,” is focused on the recent advances in polymer technology, polymerization methods and novel classes of monomers, encompassing the fields of bio-based polymer building blocks and biopolymer properties and applications.

Dr. Vladimir A. Belyy
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 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

  • polymerization methods
  • structural characterization
  • structure–property relationships
  • biomaterials
  • extracellular biopolymers
  • bio-based monomers
  • medical applications

Published Papers (2 papers)

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Research

20 pages, 4334 KiB  
Article
Isobornyl and Isocamphyl Photostabilizers in Poly(lactic acid)-Based Electrospun Fibers
by Vladimir Belyi, Ivan M. Kuzivanov, Irina Fedorova, Olga A. Shumova, Nikita Paderin, Pavel A. Markov, Ilya I. Pikovskoi, Irina Yu. Chukicheva and Alexander V. Kutchin
Polymers 2024, 16(6), 855; https://doi.org/10.3390/polym16060855 - 20 Mar 2024
Viewed by 508
Abstract
In this work, electrospun polylactide fibers with new photostabilizing additives, 4-methyl-2,6-diisobornylphenol (DIBP) and N-isocamphylaniline (NICA), have been tested under the influence of UV-C radiation (254 nm). The changes in the polymers’ chemical structure under UV-C radiation were revealed through the increase in absorption [...] Read more.
In this work, electrospun polylactide fibers with new photostabilizing additives, 4-methyl-2,6-diisobornylphenol (DIBP) and N-isocamphylaniline (NICA), have been tested under the influence of UV-C radiation (254 nm). The changes in the polymers’ chemical structure under UV-C radiation were revealed through the increase in absorption in the 3600–3100 cm−1 region in regard to the FTIR spectra. In the samples that were irradiated for 1 h, the stabilizing effect of the photoprotectors became most noticeable as the difference in the content of the hydroxyl groups in stabilized and the pure PLA reached a maximum. The TG–DSC method revealed that the most sensitive indicator of the irradiation effect was the glass transition temperature (Tg), which persisted after 2 h of irradiation when using photostabilizers and their combinations. The PLA/DIBP(1) and PLA/NICA(1) samples showed the best results in protecting PLA from UV-C radiation based on the Tg values; although, the mixture of DIBP and NICA was not as effective. The chemical structure of the photostabilized PLA samples was studied using NMR, GPC, and Py–GC/MS analysis. The electrospun polylactide fibers were mechanically tested and the effects of the electrospun samples on cell viability were studied. Full article
(This article belongs to the Special Issue Preparation and Properties of Polymer Materials from Biomass)
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14 pages, 3155 KiB  
Article
Optimization of Approaches to Analysis of Lignin by Thermal Decomposition
by Sergey Pokryshkin, Yuliya Sypalova, Artem Ivahnov and Aleksandr Kozhevnikov
Polymers 2023, 15(13), 2861; https://doi.org/10.3390/polym15132861 - 28 Jun 2023
Cited by 1 | Viewed by 772
Abstract
The ratio of monomeric units is one of the main characteristics of lignin, which affects the possibilities and strategies for further processing. Pyrolytic and thermal desorption decomposition of lignins followed by mass detection of macromolecule fragments are the most common methods for determining [...] Read more.
The ratio of monomeric units is one of the main characteristics of lignin, which affects the possibilities and strategies for further processing. Pyrolytic and thermal desorption decomposition of lignins followed by mass detection of macromolecule fragments are the most common methods for determining the amount of lignin structural units. Two methods of thermal decomposition of lignin were studied: thermal desorption–GC/MS (TD–GC/MS) and pyrolysis–GC/MS (Py–GC/MS). It was noted that, when using different thermal decomposition modes, the composition of the products changes, which affects the accuracy of determining the amount of lignin structural fragments. This article investigated the influence of the sample weight, the thermal decomposition temperature, and the duration of the process in various modes on the quantitation of the lignin structural units. The optimal process conditions were established. It was shown that the DS–Py–GC/MS with cryofocusing, a sample weight of 0.2–0.4 mg, and heating from 50 to 400 °C at a rate of 120 °C/min are preferable. The HSQC NMR was used as a comparison method to obtain the content of the S/G/H units. The results showed the applicability of the proposed approaches to hardwood lignins close to native. Full article
(This article belongs to the Special Issue Preparation and Properties of Polymer Materials from Biomass)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Isobornyl and Isocamphyl Photostabilizers for Poly(lactic acid)-Based Electrospun Fibers
Authors: Vladimir Belyi; Ivan M. Kuzivanov; Irina Fedorova; Olga A. Shumova; Irina Yu. Chukicheva; Alexander V. Kutchin
Affiliation: Institute of Chemistry of FRC Komi SC UB RAS, 167982 Syktyvkar, Russia
Abstract: In this work, electrospun polylactide fibers with new photostabilizing additives, 4-methyl-2,6-diisobornylphenol (DIBP) and N-isocamphylaniline (NICA), have been tested under the influence of UV-C radiation (254 nm). The changes in polymer chemical structure under UV-C radiation caused the increase in absorption in at 3600-3100 cm-1 of FTIR spectra. In the samples irradiated for 1 hour, the difference in the content of hydroxyl groups in the stabilized and pure PLA reached a maximum and, therefore, the stabilizing effect of the photoprotectors became most noticeable. TG-DSC method revealed that the most sensitive indicator to the irradiation effect was the value of the glass transition temperature (Tg), which persists after 2 hours of irradiation when using the photostabilizers and their combinations. Samples PLA/DIBP(1) and PLA/NICA(1) showed the best result in protecting PLA from UV-C based on Tg values, although their combinations were not as effective. Py-GC/MS analysis demonstrated a decrease in the yield of methyltartronic and 2-methyl-2-butenoic acids in pyrolysis products of the polymeric materials with DIBP and NICA additives in the irradiation time range from 1 to 4 hours, compared to non-stabilized PLA, which indicates the preservation of the protective the effects of these stabilizers at 4 hours of irradiation.

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