Special Issue "Polymer Blends: Processing, Morphology, and Properties"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 31 December 2020.

Special Issue Editor

Prof. Jose Gamez-Perez
Website
Guest Editor
Polymers and Advanced Materials Group (PIMA), Universitat Jaume I, 12071 Castellón, Spain
Interests: polyhydroxyalkanoate blends; film toughness; biodegradable compounds

Special Issue Information

Dear Colleagues,

This Special Issue will focus on the existing state of the art of blending as an efficient approach to overcome the present and future challenges of the polymer industry. We are moving from an oil-based economy where a “few” cheap plastic products can fulfill many different applications to a new paradigm where the circular economy and pollution taxes will increase the cost of, if not ban, products made from commodities. Hence, the opportunity for specific new compounds that are optimal for fulfilling a given application will arise, especially in the field of bio-sourced and biodegradable materials. Blending polymers is a powerful method to modify the properties of plastics, but there are still some unanswered questions regarding processing-induced morphology and properties of the blends, which are the purpose of many studies. In this sense, the goal of this Special Issue is to be a reference work, collecting the latest results in the field, so they can enlighten current and future investigations.

Prof. Jose Gamez-Perez
Guest Editor

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 papers will be 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. Materials 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 2000 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

  • biodegradable blends
  • nano/micro-dispersions
  • reactive blending
  • surface modification

Published Papers (1 paper)

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Research

Open AccessArticle
Properties of Styrene–Maleic Anhydride Copolymer Compatibilized Polyamide 66/Poly (Phenylene Ether) Blends: Effect of Maleic Anhydride Concentration and Copolymer Content
Materials 2020, 13(5), 1237; https://doi.org/10.3390/ma13051237 - 09 Mar 2020
Abstract
Polyamide 66 (PA66)/poly (2,6-dimethyl-1,4-phenylene ether) (PPE) blends with a ratio of 50/50 (w/w) were produced by a twin-screw compounder. The immiscible blends were compatibilized using two different styrene–maleic anhydride copolymers (SMA) with a low (SMAlow) and a high (SMAhigh) [...] Read more.
Polyamide 66 (PA66)/poly (2,6-dimethyl-1,4-phenylene ether) (PPE) blends with a ratio of 50/50 (w/w) were produced by a twin-screw compounder. The immiscible blends were compatibilized using two different styrene–maleic anhydride copolymers (SMA) with a low (SMAlow) and a high (SMAhigh) maleic anhydride (MA) concentration of 8 and 25 wt%, respectively. Furthermore, the SMA content was varied from 0 to 10 wt%. The influence of MA concentration and SMA content on the morphological and thermomechanical properties of PA66/PPE blends was investigated. Herein, we established correlations between the interfacial activity of the SMA with blend morphology and corresponding tensile properties. A droplet-sea to co-continuous morphology transition was shown by scanning electron microscopy to occur between 1.25 and 5 wt% in the case of SMAhigh. For SMAlow, the transition started from 7.5 wt% and was still ongoing at 10 wt%. It was found that SMAlow with 10 wt% content enhanced the tensile strength (10%) and elongation at break (70%) of PA66/PPE blends. This improvement can be explained by the strong interfacial interaction of SMAlow within the blend system, which features the formation of nanoemulsion morphology, as shown by transmission electron microscopy. Very small interdomain distances hinder matrix deformations, which forces debonding and cohesive failure of the PPE phase as a “weaker” main deformation mechanism. Due to a lack of interfacial activity, the mechanical properties of the blends with SMAhigh were not improved. Full article
(This article belongs to the Special Issue Polymer Blends: Processing, Morphology, and Properties)
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