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Polymers
Special Issues
Sustainable Polymers from Biomass II
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Sustainable Polymers from Biomass II

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

Deadline for manuscript submissions: closed (5 October 2022) | Viewed by 7510

Special Issue Editors

Dr. Stanislav Obruca

E-Mail Website
Guest Editor
Department of Food Chemistry and Biotechnology, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
Interests: polyhydroxyalkanoates; biopolymers; biorefinery; microbial stress response; extremophiles
Special Issues, Collections and Topics in MDPI journals
Dr. Adriana Kovalcik

E-Mail Website
Guest Editor
Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
Interests: polyhydroxyalkanoates; polylactide; lignin; biocomposites; modification
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Modern society faces numerous global challenges, including rapid irretrievable depletion of non-renewable resources. Therefore, at least partial transition from an oil-based to a bio-based economy is generally considered an inevitable step toward sustainable development. In this context, polymers produced from biomass attract the attention not only of the scientific community but also of the general public, since they represent attractive renewable alternative to petrochemical polymers. Moreover, numerous biopolymers possess qualities such as biodegradability, biocompatibility, positive biological activity or unique material properties which might enable their advantageous applications in numerous fields. Hence, this Special Issue is dedicated to all aspects of production, processing, and applications of polymeric materials produced from biomass.

Assoc. Prof. Stanislav Obruca
Assoc. Prof. Adriana Kovalcik
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

  • biopolymers
  • biomass valorization
  • biorefinery
  • high value applications
  • biodegradability
  • biocompatibility

Related Special Issue

Published Papers (2 papers)

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Research

13 pages, 8818 KiB  
Article
Preparation, Characterization and Gelation of a Fungal Nano Chitin Derived from Hericium erinaceus Residue
by Jing Liao and Huihua Huang
Polymers 2022, 14(3), 474; https://0-doi-org.brum.beds.ac.uk/10.3390/polym14030474 - 25 Jan 2022
Cited by 9 | Viewed by 2604
Abstract
Nano chitin is a promising biocompatible material with wide applications. In this work, a fungal-derived nano chitin was prepared from Hericium erinaceus residue via mineral/protein purification and subsequent TEMPO-mediated oxidation. The structure, dispersity, and gelation ability of the prepared fungal nano chitin were [...] Read more.
Nano chitin is a promising biocompatible material with wide applications. In this work, a fungal-derived nano chitin was prepared from Hericium erinaceus residue via mineral/protein purification and subsequent TEMPO-mediated oxidation. The structure, dispersity, and gelation ability of the prepared fungal nano chitin were studied. The results showed that the average length and width of the prepared fungal nano chitin were 336.6 nm and 6.4 nm, respectively, and the aspect ratio exceeded 50:1. The nano chitin retained the basic structure of chitin, while the crystallization index was improved. In addition, the dispersity of the nano chitin in aqueous media was evaluated by the effective diameter, and the polydispersion index was mainly affected by pH and ionic strength. Under acetic acid “gas phase coagulation”, the prepared nano chitin dispersions with mass concentrations of 0.2, 0.4, 0.6, and 0.8% were converted into gels by enhanced hydrogen bond crosslinking between nano chitins. Full article
(This article belongs to the Special Issue Sustainable Polymers from Biomass II)
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13 pages, 3023 KiB  
Article
Lignin Extraction from Waste Pine Sawdust Using a Biomass Derived Binary Solvent System
by Solange Magalhães, Alexandra Filipe, Elodie Melro, Catarina Fernandes, Carla Vitorino, Luís Alves, Anabela Romano, Maria G. Rasteiro and Bruno Medronho
Polymers 2021, 13(7), 1090; https://0-doi-org.brum.beds.ac.uk/10.3390/polym13071090 - 30 Mar 2021
Cited by 17 | Viewed by 4237
Abstract
Lignocellulosic biomass fractionation is typically performed using methods that are somehow harsh to the environment, such as in the case of kraft pulping. In recent years, the development of new sustainable and environmentally friendly alternatives has grown significantly. Among the developed systems, bio-based [...] Read more.
Lignocellulosic biomass fractionation is typically performed using methods that are somehow harsh to the environment, such as in the case of kraft pulping. In recent years, the development of new sustainable and environmentally friendly alternatives has grown significantly. Among the developed systems, bio-based solvents emerge as promising alternatives for biomass processing. Therefore, in the present work, the bio-based and renewable chemicals, levulinic acid (LA) and formic acid (FA), were combined to fractionate lignocellulosic waste (i.e., maritime pine sawdust) and isolate lignin. Different parameters, such as LA:FA ratio, temperature, and extraction time, were optimized to boost the yield and purity of extracted lignin. The LA:FA ratio was found to be crucial regarding the superior lignin extraction from the waste biomass. Moreover, the increase in temperature and extraction time enhances the amount of extracted residue but compromises the lignin purity and reduces its molecular weight. The electron microscopy images revealed that biomass samples suffer significant structural and morphological changes, which further suggests the suitability of the newly developed bio-fractionation process. The same was concluded by the FTIR analysis, in which no remaining lignin was detected in the cellulose-rich fraction. Overall, the novel combination of bio-sourced FA and LA has shown to be a very promising system for lignin extraction with high purity from biomass waste, thus contributing to extend the opportunities of lignin manipulation and valorization into novel added-value biomaterials. Full article
(This article belongs to the Special Issue Sustainable Polymers from Biomass II)
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