Frontiers in Silicon-Containing Polymers

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 4680

Special Issue Editor


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Guest Editor
Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Interests: polymer science; polysiloxane; organosilicon chemistry and physics; polymeric biomaterials; high-performance polymers

Special Issue Information

Dear Colleagues,

Silicon, having a natural abundance of 26% in the Earth’s surface by weight, represents an almost inexhaustible resource. Under favorable conditions, silicon has a coordination number greater than four. It can utilize its third orbitals to form (p-d) π bondings. Therefore, silicon-containing polymers have unique properties different from those of their carbon analogs. Silicon-containing polymers such as polysiloxanes and their copolymers, polysilsesquioxane, polysilanes, polycarbosiloxanes, and polycarbosilanes have great potential applications in elastomers, matrix resins in composites, electronic and optical materials, nonlinear optical materials, polymer membranes, chiral column packing materials and ceramic precursors, etc. They are of interest from both an academic and industrial perspective as functional or high-performance materials. The interest in them has promoted the development of silicon-containing polymers with efficient preparative methods, a well-controlled microstructure, relationship between the structure and properties, functionalized materials, and so on.

This Special Issue of Polymers aims to highlight the most recent developments in design, synthesis, characterization, theoretical study, processing, and application of silicon-containing polymers. In addition to original research papers and communications, review or perspective articles are also warmly welcomed and will be considered for publication. I sincerely invite you to contribute your research work to this Special Issue.

Dr. Qingzeng Zhu
Guest Editor

Manuscript Submission Information

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Keywords

  • silicon
  • siloxane
  • organosilicon
  • polysiloxane
  • polysilsesquioxane
  • polysilanes
  • polycarbosiloxane
  • polycarbosilane
  • elastomer
  • resin
  • high performance

Published Papers (2 papers)

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Research

32 pages, 7868 KiB  
Article
Novel Tough and Transparent Ultra-Extensible Nanocomposite Elastomers Based on Poly(2-methoxyethylacrylate) and Their Switching between Plasto-Elasticity and Viscoelasticity
by Katarzyna Byś, Beata Strachota, Adam Strachota, Ewa Pavlova, Miloš Steinhart, Beata Mossety-Leszczak and Weronika Zając
Polymers 2021, 13(23), 4254; https://doi.org/10.3390/polym13234254 - 04 Dec 2021
Cited by 3 | Viewed by 2070
Abstract
Novel stiff, tough, highly transparent and ultra-extensible self-assembled nanocomposite elastomers based on poly(2-methoxyethylacrylate) (polyMEA) were synthesized. The materials are physically crosslinked by small in-situ-formed silica nanospheres, sized 3–5 nm, which proved to be a very efficient macro-crosslinker in the self-assembled network architecture. Very [...] Read more.
Novel stiff, tough, highly transparent and ultra-extensible self-assembled nanocomposite elastomers based on poly(2-methoxyethylacrylate) (polyMEA) were synthesized. The materials are physically crosslinked by small in-situ-formed silica nanospheres, sized 3–5 nm, which proved to be a very efficient macro-crosslinker in the self-assembled network architecture. Very high values of yield stress (2.3 MPa), tensile strength (3.0 MPa), and modulus (typically 10 MPa), were achieved in combination with ultra-extensibility: the stiffest sample was breaking at 1610% of elongation. Related nanocomposites doubly filled with nano-silica and clay nano-platelets were also prepared, which displayed interesting synergy effects of the fillers at some compositions. All the nanocomposites exhibit ‘plasto-elastic’ tensile behaviour in the ‘as prepared’ state: they display considerable energy absorption (and also ‘necking’ like plastics), but at the same time a large but not complete (50%) retraction of deformation. However, after the first large tensile deformation, the materials irreversibly switch to ‘real elastomeric’ tensile behaviour (with some creep). The initial ‘plasto-elastic’ stretching thus causes an internal rearrangement. The studied materials, which additionally are valuable due to their high transparency, could be of application interest as advanced structural materials in soft robotics, in implant technology, or in regenerative medicine. The presented study focuses on structure-property relationships, and on their effects on physical properties, especially on the complex tensile, elastic and viscoelastic behaviour of the polyMEA nanocomposites. Full article
(This article belongs to the Special Issue Frontiers in Silicon-Containing Polymers)
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12 pages, 3626 KiB  
Article
Enhanced Vapor Transmission Barrier Properties via Silicon-Incorporated Diamond-Like Carbon Coating
by Parand R. Riley, Pratik Joshi, Sina Azizi Machekposhti, Ritesh Sachan, Jagdish Narayan and Roger J. Narayan
Polymers 2021, 13(20), 3543; https://doi.org/10.3390/polym13203543 - 14 Oct 2021
Cited by 8 | Viewed by 1877
Abstract
In this study, we describe reducing the moisture vapor transmission through a commercial polymer bag material using a silicon-incorporated diamond-like carbon (Si-DLC) coating that was deposited using plasma-enhanced chemical vapor deposition. The structure of the Si-DLC coating was analyzed using scanning electron microscopy, [...] Read more.
In this study, we describe reducing the moisture vapor transmission through a commercial polymer bag material using a silicon-incorporated diamond-like carbon (Si-DLC) coating that was deposited using plasma-enhanced chemical vapor deposition. The structure of the Si-DLC coating was analyzed using scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, selective area electron diffraction, and electron energy loss spectroscopy. Moisture vapor transmission rate (MVTR) testing was used to understand the moisture transmission barrier properties of Si-DLC-coated polymer bag material; the MVTR values decreased from 10.10 g/m2 24 h for the as-received polymer bag material to 6.31 g/m2 24 h for the Si-DLC-coated polymer bag material. Water stability tests were conducted to understand the resistance of the Si-DLC coatings toward moisture; the results confirmed the stability of Si-DLC coatings in contact with water up to 100 °C for 4 h. A peel-off adhesion test using scotch tape indicated that the good adhesion of the Si-DLC film to the substrate was preserved in contact with water up to 100 °C for 4 h. Full article
(This article belongs to the Special Issue Frontiers in Silicon-Containing Polymers)
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