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New Trends in Biomacromolecules and Biodegradable Polymers

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 2679

Special Issue Editor


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Guest Editor
Department of Biological and Chemical Engineering, Hongik University, Sejong, Korea
Interests: functional organic/polymer synthesis; conjugated ladder-type polymers; biomass-derived polymer synthesis

Special Issue Information

Dear Colleagues,

Bioplastic has recently become an especially hot field of research due to the environmental pollution attributed to the thoughtless production, use, and disposal of plastic products. In addition, it has also grown increasingly significant as a result of the global consensus on carbon neutrality. Although significant progress on biopolymers has been made in recent years, there are still a number of remaining challenges on the applications of bioplastics, such as low mechanical properties and biodegradability. This Special Issue aims at emerging trends and recent advances in biomacromolecules and biodegradable polymers, including, but not limited to, biomass derived polymers or fillers (additives), development of efficient biopolymer recycling or upcycling methods, reinforcement of biopolymers, fundamental understanding on biodegradable properties, life cycle assessment (LCA) methodologies of biodegradable polymers, etc. We are inviting scientists or researchers for the submission of their recent achievements or reviews on the related topic. 

Dr. Jongbok Lee
Guest Editor

Manuscript Submission Information

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Keywords

  • bioplastics
  • biopolymers
  • biodegradable
  • carbon neutrality

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Published Papers (1 paper)

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Research

12 pages, 3471 KiB  
Article
Masterbatch of Chitosan Nanowhiskers for Preparation of Nylon 6,10 Nanocomposite by Melt Blending
by Se Bin Jin, Lam Tan Hao, Sung Yeon Hwang, Dongyeop X. Oh, Jun Mo Koo, Hyeonyeol Jeon, Sung Bae Park and Jeyoung Park
Polymers 2022, 14(24), 5488; https://doi.org/10.3390/polym14245488 - 15 Dec 2022
Cited by 1 | Viewed by 2355
Abstract
Composite materials have been extensively studied to optimize properties such as lightness and strength, which are the advantages of plastics. We prepared a highly concentrated (30 wt %) nylon/chitosan nanowhisker (CSW) masterbatch by blending nylon 6,10 and CSW by solvent casting to achieve [...] Read more.
Composite materials have been extensively studied to optimize properties such as lightness and strength, which are the advantages of plastics. We prepared a highly concentrated (30 wt %) nylon/chitosan nanowhisker (CSW) masterbatch by blending nylon 6,10 and CSW by solvent casting to achieve high dispersion efficiency while considering an industrial setting. Subsequently, 0.3 wt % nylon/CSW nanocomposites were prepared with a large quantity of nylon 6,10 via melt blending. During preparation, the materials were stirred in the presence of formic acid at different times to investigate the effect of stirring time on the structure of the CSW and the physical properties of the composite. The formation of nanocomposites by the interactions between nylon and CSW was confirmed by observing the change in hydrogen bonding using FT-IR spectroscopy and the rise in melting temperature and melting enthalpy through differential scanning calorimetry. The results demonstrated increases in complex viscosity and shear thinning. The rheological properties of the composites changed due to interactions between CSW and nylon, as indicated by the loss factor. The mechanical properties produced by the nanocomposite stirred for 1.5 h were superior, suggesting that formic acid caused minimal structural damage, thus verifying the suitability of the stirring condition. Full article
(This article belongs to the Special Issue New Trends in Biomacromolecules and Biodegradable Polymers)
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