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Polymers, Volume 12, Issue 7

July 2020 - 191 articles

Cover Story: Plasma treatment of liquid suspensions of cellulose is proposed as an environmentally friendly, simple, and cheap alternative to chemical treatment of cellulose. In this work, cellulose was treated by plasma and TEMPO-mediated oxidation. Both treatments led to the surface functionalization of cellulose, and a stronger oxidizing effect was observed after TEMPO oxidation. Plasma- and TEMPO-modified celluloses were incorporated in a poly(3-hydroxybutyrate) matrix and both treatments were efficient in improving the fiber–polymer interface. However, the highest increase of the mechanical properties was observed in the composite with plasma-modified cellulose, which is promising for biomedical applications. View this paper.
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Articles (191)

  • Article
  • Open Access
17 Citations
3,699 Views
18 Pages

Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films

  • Lijie Huang,
  • Xiaoxue Han,
  • Haobin Chen,
  • Shuxiang An,
  • Hanyu Zhao,
  • Hao Xu,
  • Chongxing Huang,
  • Shuangfei Wang and
  • Yang Liu

20 July 2020

In this study, we investigated the barrier properties of a montmorillonite-reinforced biomass material, starch. Organically modified montmorillonite materials were prepared from natural montmorillonite by reacting it with dodecyl trimethyl ammonium c...

  • Article
  • Open Access
16 Citations
4,427 Views
14 Pages

20 July 2020

Herein, poly(amic acid) (PAA) was synthesized using 4,4’-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) as a dianhydride and 2,2-bis(3-aminophenyl)hexafluoropropane (6FAm) and 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (6FAm-OH)...

  • Article
  • Open Access
29 Citations
5,881 Views
14 Pages

20 July 2020

The self-assembly of hydrophobically modified polymers has become a research hotspot due to its wide application in the biomedical field. Recombinant human epidermal growth factors (rhEGFs) are molecules that are able to enhance wound healing; howeve...

  • Article
  • Open Access
12 Citations
4,674 Views
13 Pages

Glutamic Acid as Repeating Building Block for Bio-Based Films

  • Mohammed Sabbah,
  • Prospero Di Pierro,
  • Francesco Ruffo,
  • Chiara Schiraldi,
  • Alberto Alfano,
  • Marcella Cammarota and
  • Raffaele Porta

20 July 2020

Commercial inexpensive preparations of poly-γ-glutamic acid were used to obtain films made with a polypeptide constituted by a single repeating unit. The homopolymer was characterized by 1H-NMR spectroscopy and thermogravimetry, as well as by z...

  • Article
  • Open Access
8 Citations
5,830 Views
20 Pages

20 July 2020

Several methods to synthesize poly(phenylene) block copolymers through the nickel coupling reaction were attempted to reduce the use of expensive nickel catalysts in polymerization. The model reaction for poly(phenylene) having different types of dic...

  • Review
  • Open Access
11 Citations
4,809 Views
20 Pages

19 July 2020

DNA folding is a core phenomenon in genome packaging within a nucleus. Such a phenomenon is induced by polyelectrolyte complexation between anionic DNA and cationic proteins of histones. In this regard, complexes formed between DNA and cationic polye...

  • Article
  • Open Access
25 Citations
6,224 Views
14 Pages

19 July 2020

To cope with the demand for cleaner alternative energy, polymer electrolyte membrane fuel cells (PEMFCs) have received significant research attention owing to their high-power density, high fuel efficiency, and low polluting by-product. However, the...

  • Article
  • Open Access
3 Citations
3,444 Views
12 Pages

Marked Difference in the Conformational Transition of DNA Caused by Propanol Isomer

  • Yue Ma,
  • Yuko Yoshikawa,
  • Hidehiro Oana and
  • Kenichi Yoshikawa

19 July 2020

We measured the changes in the higher-order structure of DNA molecules (λ phage DNA, 48 kbp) at different concentrations of 1- and 2-propanol through single-molecular observation. It is known that 2-propanol is usually adapted for the procedur...

  • Article
  • Open Access
18 Citations
4,616 Views
13 Pages

19 July 2020

To improve the functional properties of starch-based films, chitin (CH) was prepared from shrimp shell powder and incorporated into corn starch (CS) matrix. Before blending, maleic anhydride (MA) was introduced as a cross-linker. Composite CS/MA-CH f...

  • Article
  • Open Access
18 Citations
3,723 Views
12 Pages

19 July 2020

Polymer composites with enhanced thermal and dielectric properties can be widely used in electric and energy related applications. In this work, epoxy composites have been prepared with Ti3C2Tx, one of the most studied MXene materials that can be mas...

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Polymers - ISSN 2073-4360