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High Performance Bio-Based Polymer Blends and Composites

A Special Issue of Polymers (ISSN 2073-4360) belonging to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 28 February 2027 | Viewed by 2133

Editor


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Guest Editor
Manufacturing and Materials Research Unit, Department of Manufacturing Engineering, Faculty of Engineering, Mahasarakham University, Mahasarakham 44150, Thailand
Interests: polylactide (PLA); stereocomplex polymers; bio-based polymer blends; biodegradable polymers; polymer crystallization; polymer processing; biocomposites

Special Issue Information

Dear Colleagues,

The growing demand for sustainable and high-performance materials has driven intensive research on bio-based polymer blends and composites, particularly those based on polylactide (PLA) and related biodegradable polymers. Through advanced blending, compatibilization, and composite design strategies, the intrinsic limitations of bio-based polymers—such as low heat resistance, brittleness, and limited durability—can be effectively addressed. This Special Issue aims to provide a comprehensive platform for recent advances in the design, processing, structure–property relationships, and performance optimization of high-performance bio-based polymer blends and composites. Topics of interest include PLA-based systems, stereocomplex formation, fiber- and particle-reinforced biocomposites, polymer foams, and application-driven studies for biomedical, packaging, and engineering applications. Both fundamental investigations and applied research contributions are welcome.

Dr. Yottha Srithep
Guest Editor

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Keywords

  • bio-based polymers
  • polylactide (PLA)
  • polymer blends
  • biocomposites
  • polymer foams
  • biomedical and packaging applications
  • stereocomplex polymers
  • sustainable materials

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Published Papers (1 paper)

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Research

24 pages, 56969 KB  
Article
Solvent Evaporation-Controlled Stereocomplexation in PLLA/PDLA Films for Sustainable Packaging
by Yottha Srithep, Tamilselvan Mohan, Arissara Phosanam, Rupert Kargl and Karin Stana Kleinschek
Polymers 2026, 18(11), 1285; https://doi.org/10.3390/polym18111285 - 24 May 2026
Cited by 1 | Viewed by 1719
Abstract
The formation of stereocomplex (SC) crystallites in poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blends has attracted significant attention due to its potential to enhance the performance of biodegradable polymer films. In this study, the effect of solvent evaporation kinetics on the crystallization behavior, microstructure, and functional [...] Read more.
The formation of stereocomplex (SC) crystallites in poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blends has attracted significant attention due to its potential to enhance the performance of biodegradable polymer films. In this study, the effect of solvent evaporation kinetics on the crystallization behavior, microstructure, and functional properties of PLLA/PDLA blend films was systematically investigated. Films with various blend ratios were prepared under open-lid (fast evaporation) and closed-lid (slow evaporation) conditions. Differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), and small-angle X-ray scattering (SAXS) analyses revealed that slow solvent evaporation significantly promotes stereocomplex formation, particularly at the equimolar (50:50) composition, resulting in a higher degree of crystallinity and a more compact structure compared to fast evaporation conditions. These structural changes were directly correlated with improved functional properties. The optimized PLLA/PDLA (50:50) films exhibited a substantial reduction in water vapor permeability from 22.7 to 3.11 g·mm/m2·day·kPa (~86% decrease) and a marked decrease in microbial growth, as evidenced by reduced total plate count (TPC) values compared to neat polymers. The enhanced barrier performance and reduced microbial proliferation were attributed to the reduced free volume and increased tortuosity associated with densely packed stereocomplex crystallites, as supported by DSC and WAXD results. These findings demonstrate the importance of solvent evaporation kinetics in tailoring structure–property relationships to control stereocomplex formation and multiscale structural organization, providing a practical strategy for biodegradable packaging films. Full article
(This article belongs to the Special Issue High Performance Bio-Based Polymer Blends and Composites)
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