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Polymers, Volume 13, Issue 5

March-1 2021 - 172 articles

Cover Story: Recently, innovative techniques and scientific research have promoted biopolymers as the primary alternative to traditional plastics, raising and expanding global bioplastic production/research. Due to its biological and functional attributes, chitosan has been substantially explored as a biopolymeric matrix. Nevertheless, its hydrophilicity and weak mechanical properties represent a significant industrial restriction. Distinct methodologies have been utilized to upgrade these properties, such as nanoreinforcement with organic or inorganic nanoparticles or with crosslinkers. This review analyzes recent works that combine the action of different nanoparticle types with chitosan films to understand how they interfere with the bionanocomposites' mechanical and barrier properties. View this paper.
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Articles (172)

  • Article
  • Open Access
11 Citations
3,274 Views
19 Pages

New Polyporphyrin Arrays with Controlled Fluorescence Obtained by Diaxial Sn(IV)-Porphyrin Phenolates Chelation with Cu2+ Cation

  • Galina M. Mamardashvili,
  • Dmitriy A. Lazovskiy,
  • Ilya A. Khodov,
  • Artem E. Efimov and
  • Nugzar Z. Mamardashvili

8 March 2021

New coordination oligomers and polymers of Sn(IV)-tetra(4-sulfonatophenyl)porphyrin have been constructed by the chelation reaction of its diaxialphenolates with Cu2+. The structure and properties of the synthesized polyporphyrin arrays were investig...

  • Article
  • Open Access
7 Citations
3,369 Views
23 Pages

8 March 2021

Segmental dynamics in unentangled isotactic, syndiotactic, and atactic poly(methyl methacrylate) (i-, a-, and s-PMMA) melts confined between pristine graphene, reduced graphene oxide, RGO, or graphene oxide, GO, sheets is studied at various temperatu...

  • Review
  • Open Access
92 Citations
15,075 Views
34 Pages

Bond Strength of Universal Adhesives to Dentin: A Systematic Review and Meta-Analysis

  • Louis Hardan,
  • Rim Bourgi,
  • Naji Kharouf,
  • Davide Mancino,
  • Maciej Zarow,
  • Natalia Jakubowicz,
  • Youssef Haikel and
  • Carlos Enrique Cuevas-Suárez

7 March 2021

Currently, the availability of a wide variety of universal adhesives makes it difficult for clinicians to choose the correct system for specific bonding situations to dentin substrate. This study aimed to determine whether there are any alternative t...

  • Review
  • Open Access
14 Citations
4,672 Views
16 Pages

7 March 2021

Bacteria produce a variety of multifunctional polysaccharides, including structural, intracellular, and extracellular polysaccharides. They are attractive for the industrial sector due to their natural origin, sustainability, biodegradability, low to...

  • Article
  • Open Access
31 Citations
4,851 Views
12 Pages

Malonic Acid Isolated from Pinus densiflora Inhibits UVB-Induced Oxidative Stress and Inflammation in HaCaT Keratinocytes

  • Cheolwoo Park,
  • Jaeyoung Park,
  • Won-Jin Kim,
  • Woong Kim,
  • Hyeonsook Cheong and
  • Seok-Jun Kim

7 March 2021

Skin aging is caused by exposure to various external factors. Ultraviolet B (UVB) irradiation induces oxidative stress, photoaging, and inflammation in skin cells. Pinus densiflora Sieb. et Zucc. (red pine) has various antimicrobial and antioxidant a...

  • Article
  • Open Access
40 Citations
7,460 Views
16 Pages

Isolation of Chitin from Black Soldier Fly (Hermetia illucens) and Its Usage to Metal Sorption

  • Katarzyna Złotko,
  • Adam Waśko,
  • Daniel M. Kamiński,
  • Iwona Budziak-Wieczorek,
  • Piotr Bulak and
  • Andrzej Bieganowski

7 March 2021

Chitin has become a desirable raw material used in various areas of life. The black soldier fly (Hermetia illucens) can be a source of this substance. In the literature, there are many methods of obtaining chitin but there is no one universal method...

  • Article
  • Open Access
4 Citations
2,628 Views
11 Pages

7 March 2021

This study demonstrates liquid crystal (LC) alignment behaviors on the surface of phytochemical-based and renewable chavicol-modified polystyrene (PCHA#, # = 20, 40, 60, 80, and 100, where # represent the molar content of chavicol moiety in the side...

  • Article
  • Open Access
14 Citations
3,987 Views
13 Pages

7 March 2021

Many natural exposure sites have been developed to ensure the reliability of materials intended for outdoor use. However, the effects of local climate on aging have not been completely understood. This study aimed to elucidate the regional characteri...

  • Article
  • Open Access
6 Citations
4,464 Views
21 Pages

7 March 2021

In this study, we proved that micro/micro hierarchical structures are enough to achieve a superhydrophobic surface using polydimethylsiloxane (PDMS) dip-coating. Furthermore, the effect of fiber type and yarn diameter on superhydrophobicity and water...

  • Article
  • Open Access
19 Citations
4,536 Views
27 Pages

Sulfur-Modified Carbon Nanotubes for the Development of Advanced Elastomeric Materials

  • Pilar Bernal-Ortega,
  • M. Mar Bernal,
  • Anke Blume,
  • Antonio González-Jiménez,
  • Pilar Posadas,
  • Rodrigo Navarro and
  • Juan L. Valentín

7 March 2021

The outstanding properties of carbon nanotubes (CNTs) present some limitations when introduced into rubber matrices, especially when these nano-particles are applied in high-performance tire tread compounds. Their tendency to agglomerate into bundles...

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Polymers - ISSN 2073-4360