Recent developments in microbial polyester fiber and polysaccharide ester derivative research

Iwata, Tadahisa; Gan, Hongyi; Togo, Azusa; Fukata, Yuya

doi:10.1038/s41428-020-00404-8

Cited by 37 publications

(20 citation statements)

References 81 publications

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“…Compared to the reported tensile strength of typical regenerated cellulose fibers such as viscose (22 cN/tex) and lyocell (42 cN/tex), the tensile strength of the regenerated fibers of α-1,3-glucan was lower. However, it is expected that the optimization of the spinning conditions, such as the concentration, viscoelasticity, and draw ratio, and post-treatment methods, such as annealing and stretching, would enhance the mechanical properties of α-1,3-glucan fibers.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Furthermore, it is desirable to produce biodegradable fibers from carbon-neutral and renewable biomass resources to combat the depletion of fossil fuel resources and climate change. 4 Polysaccharides show potential toward application as biodegradable and biomass fibers because of their biodegradable 5,6 and biocompatible properties as well as their natural abundance. 7 There are various types of polysaccharides in nature, their function depending on the type of monosaccharides and the position of the linkages.…”

Section: Introductionmentioning

confidence: 99%

“…7 There are various types of polysaccharides in nature, their function depending on the type of monosaccharides and the position of the linkages. 4 Most polysaccharides have strong inter-and intra-hydrogen bonds 4 and, thus, low thermoplasticity and solubility in common organic solvents, which is the reason for the limited number of processing methods used for polysaccharides.…”

Section: Introductionmentioning

confidence: 99%

“…One of the solutions to this specific problem is substituting non-biodegradable fibers with biodegradable fibers. Furthermore, it is desirable to produce biodegradable fibers from carbon-neutral and renewable biomass resources to combat the depletion of fossil fuel resources and climate change …”

Section: Introductionmentioning

confidence: 99%

“…Polysaccharides show potential toward application as biodegradable and biomass fibers because of their biodegradable , and biocompatible properties as well as their natural abundance . There are various types of polysaccharides in nature, their function depending on the type of monosaccharides and the position of the linkages . Most polysaccharides have strong inter- and intra-hydrogen bonds and, thus, low thermoplasticity and solubility in common organic solvents, which is the reason for the limited number of processing methods used for polysaccharides.…”

Section: Introductionmentioning

confidence: 99%

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Wet Spinning and Structure Analysis of α-1,3-Glucan Regenerated Fibers

Togo

Suzuki

Kimura

et al. 2021

ACS Appl. Polym. Mater.

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Because of the increasing concerns related to fiber wastes resulting from non-biodegradable plastics and their impact in terms of environmental pollution, the demand for the development of biodegradable fibers has increased. Regenerated fibers of polysaccharides are expected as biomass fibers because of their biodegradability and structural variety. In this study, a linear polysaccharide synthesized by in vitro enzymatic polymerization, α-1,3-glucan, was wet-spun using 8% (w/w) lithium chloride in a dimethylacetamide solution. When ethanol (EtOH) was used in the coagulation bath, the resulting fibers were transparent, flexible, and dense, whereas the fibers produced with water in the coagulation bath were translucent, brittle, and aggregated. The former regenerated fibers exhibited tensile strength (11 cN/tex, 138 MPa), elongation at break (12%), and Young's modulus (3.5 GPa). The X-ray fiber diagram of the regenerated fibers coagulated in EtOH showed that the fibers were well-oriented along the fiber axis. The crystalline structure was determined to consist of a twofold helix with crystal lattice parameters of a = 1.59 nm, b = 0.976 nm, and c (fiber axis) = 0.852 nm.

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Section: Results and Discussionmentioning

confidence: 99%