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Polymers, Volume 15, Issue 11

June-1 2023 - 172 articles

Cover Story: Camptothecin (CPT) exhibits anticancer activity, yet it is very hydrophobic with poor stability. In this study, a dual pH/thermo-responsive block copolymer of poly(acrylic acid-b-N-isopropylacrylamide) (PAA-b-PNP) was synthesized and applied to encapsulate CPT by self-assembly to form nanoparticles (NPs) above its cloud point. Chitosan was further applied on the surface for improving biocompatibility. At pH 2.0, these NPs could protect the CPT; yet at pH 6.0, they were internalized by Caco-2 cells, followed by the intracellular release of CPT. They became highly swollen at pH 7.4. Among several cancer cell lines, the highest cytotoxicity was observed for H460 cells. View this paper
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Articles (172)

  • Article
  • Open Access
8 Citations
2,687 Views
24 Pages
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Anisotropy and Mechanical Properties of Nanoclay Filled, Medium-Density Rigid Polyurethane Foams Produced in a Sealed Mold, from Renewable Resources

  • Ilze Beverte,
  • Ugis Cabulis,
  • Janis Andersons,
  • Mikelis Kirpluks,
  • Vilis Skruls and
  • Peteris Cabulis
Polymers2023, 15(11), 2582;https://doi.org/10.3390/polym15112582

5 June 2023

Medium-density rigid polyurethane (PU) foams are often produced in sealed molds; therefore, the processes inside the mold and structure of the produced foam blocks need to be understood. The structural and mechanical anisotropy is shown to be the thi...

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  • Article
  • Open Access
8 Citations
4,067 Views
15 Pages
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Electrical and Mechanical Characterisation of Poly(ethylene)oxide-Polysulfone Blend for Composite Structural Lithium Batteries

  • Francesco Gucci,
  • Marzio Grasso,
  • Stefano Russo,
  • Glenn J. T. Leighton,
  • Christopher Shaw and
  • James Brighton
Polymers2023, 15(11), 2581;https://doi.org/10.3390/polym15112581

5 June 2023

In this work, a blend of PEO, polysulfone (PSF), and lithium bis(trifluoromethanesulfonyl)imide (LiTFSi) was prepared at different PEO–PSf weight ratios (70-30, 80-20, and 90-10) and ethylene oxide to lithium (EO/Li) ratios (16/1, 20/1, 30/1, a...

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  • Article
  • Open Access
5 Citations
2,747 Views
17 Pages
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Polyacrylonitrile Fibers with a Gradient Silica Distribution as Precursors of Carbon-Silicon-Carbide Fibers

  • Lydia A. Varfolomeeva,
  • Ivan Yu. Skvortsov,
  • Ivan S. Levin,
  • Georgiy A. Shandryuk,
  • Timofey D. Patsaev and
  • Valery G. Kulichikhin
Polymers2023, 15(11), 2579;https://doi.org/10.3390/polym15112579

5 June 2023

This study presents preparing and characterization of polyacrylonitrile (PAN) fibers containing various content of tetraethoxysilane (TEOS) incorporated via mutual spinning solution or emulsion using wet and mechanotropic spinning methods. It was sho...

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  • Article
  • Open Access
8 Citations
2,302 Views
13 Pages
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Effect of Recycled Polyvinyl Butyral (rPVB) Addition on the Tribological Performance of Glass–Fiber Reinforced Polyamide (PAGF) during Reciprocating Sliding Wear Conditions

  • Isabel Ariadna Carmona-Cervantes,
  • Iván Campos-Silva,
  • Ulises Figueroa-López and
  • Andrea Guevara-Morales
Polymers2023, 15(11), 2580;https://doi.org/10.3390/polym15112580

5 June 2023

Plastic recycling in the automotive industry is a priority. In this study, the effect of adding recycled polyvinyl butyral (rPVB) from automotive windshields on the coefficient of friction (CoF) and specific wear rate (k) of a glass–fiber reinf...

Full Article
  • Article
  • Open Access
16 Citations
2,713 Views
18 Pages
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Proposal and Numerical Analysis of Organic/Sb2Se3 All-Thin-Film Tandem Solar Cell

  • Tarek I. Alanazi,
  • Abdulaziz Alanazi,
  • Ezzeddine Touti,
  • Ahmed M. Agwa,
  • Habib Kraiem,
  • Mohana Alanazi,
  • Abdulrahman M. Alanazi and
  • Mona El Sabbagh
Polymers2023, 15(11), 2578;https://doi.org/10.3390/polym15112578

5 June 2023

The low bandgap antimony selenide (Sb2Se3) and wide bandgap organic solar cell (OSC) can be considered suitable bottom and top subcells for use in tandem solar cells. Some properties of these complementary candidates are their non-toxicity and cost-a...

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  • Article
  • Open Access
5 Citations
2,870 Views
12 Pages
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Improving Surface Wear Resistance of Polyimide by Inserting KH550 Grafted GO

  • Chen Liu,
  • Jingfu Song,
  • Gai Zhao and
  • Qingjun Ding
Polymers2023, 15(11), 2577;https://doi.org/10.3390/polym15112577

4 June 2023

To improve the wear resistance of polyimide (PI), surface modification was developed. In this study, the tribological properties of graphene (GN), graphene oxide (GO), and KH550-grafted graphene oxide (K5-GO) modified PI were evaluated by molecular d...

Full Article
  • Article
  • Open Access
13 Citations
3,020 Views
16 Pages
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Effect of Functionalized Polyethylene Wax on the Melt Processing and Properties of Highly Filled Magnesium Hydroxide/Linear Low-Density Polyethylene Composites

  • Rujie Li,
  • Shiai Xu,
  • Jiajun Xu,
  • Tongtong Pan,
  • Beibei Sun and
  • Li Dang
Polymers2023, 15(11), 2575;https://doi.org/10.3390/polym15112575

4 June 2023

The poor processing and rheological properties of highly filled composites caused by the high loading of fillers can be improved with the use of maleic anhydride grafted polyethylene wax (PEWM) as compatibilizer and lubricant. In this study, two PEWM...

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  • Article
  • Open Access
8 Citations
3,188 Views
19 Pages
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Synthesis and Properties of the Novel High-Performance Hydroxyl-Terminated Liquid Fluoroelastomer

  • Donghan Li,
  • Chen Yang,
  • Ping Li,
  • Lu Yu,
  • Shufa Zhao,
  • Long Li,
  • Hailan Kang,
  • Feng Yang and
  • Qinghong Fang
Polymers2023, 15(11), 2574;https://doi.org/10.3390/polym15112574

4 June 2023

Functional liquid fluoroelastomers are in high demand in new energy fields. And these materials have potential applications in high-performance sealing materials and as electrode materials. In this study, a novel high-performance hydroxyl-terminated...

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  • Article
  • Open Access
7 Citations
2,481 Views
20 Pages
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Organophosphorus Reinforced Poly(vinyl alcohol) Nanocomposites Doped with Silver-Loaded Zeolite L Nanoparticles as Sustainable Materials for Packaging Applications

  • Tăchiță Vlad-Bubulac,
  • Corneliu Hamciuc,
  • Diana Serbezeanu,
  • Dana Mihaela Suflet,
  • Daniela Rusu,
  • Gabriela Lisa,
  • Ion Anghel,
  • Dana-Maria Preda,
  • Totka Todorova and
  • Cristina Mihaela Rîmbu
Polymers2023, 15(11), 2573;https://doi.org/10.3390/polym15112573

4 June 2023

The sustainable development of innovative eco-friendly multifunctional nanocomposites, possessing superior characteristics, is a noteworthy topic. Novel semi-interpenetrated nanocomposite films based on poly(vinyl alcohol) covalently and thermally cr...

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