Preparation of Chitin Nanofiber-Reinforced Cellulose Films Through Stepwise Regenerations from Individually Prepared Ion Gels

Kadokawa, Jun‐ichi; Endo, Ryo; Hatanaka, Daisuke; Yamamoto, Katsuhiro

doi:10.1007/s10924-015-0723-x

Cited by 23 publications

(8 citation statements)

References 37 publications

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“…The SEM image of the resulting film observed the presence of nanofibers on the surface. The self-assembled ChNF-reinforced cellulose films were also fabricated [62]. An ionic liquid, BMIMCl, was found to form an ion gel with cellulose [63].…”

Section: Preparation Of Composite Materials From Self-assembled Chitin Nanofibersmentioning

confidence: 99%

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Preparation of Composite Materials from Self-Assembled Chitin Nanofibers

Kadokawa

2021

Polymers

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Although chitin is a representative abundant polysaccharide, it is mostly unutilized as a material source because of its poor solubility and processability. Certain specific properties, such as biodegradability, biocompatibility, and renewability, make nanofibrillation an efficient approach for providing chitin-based functional nanomaterials. The composition of nanochitins with other polymeric components has been efficiently conducted at the nanoscale to fabricate nanostructured composite materials. Disentanglement of chitin microfibrils in natural sources upon the top-down approach and regeneration from the chitin solutions/gels with appropriate media, such as hexafluoro-2-propanol, LiCl/N, N-dimethylacetamide, and ionic liquids, have, according to the self-assembling bottom-up process, been representatively conducted to fabricate nanochitins. Compared with the former approach, the latter one has emerged only in the last one-and-a-half decade. This short review article presents the preparation of composite materials from the self-assembled chitin nanofibers combined with other polymeric substrates through regenerative processes based on the bottom-up approach.

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Section: Preparation Of Composite Materials From Self-assembled Chitin Nanofibersmentioning

confidence: 99%

“…These enhanced mechanical properties and efficient compositing properties were attributed to the scaling down of the ChNFs. The self-assembled ChNF-reinforced cellulose films were also fabricated [62]. An ionic liquid, BMIMCl, was found to form an ion gel with cellulose [63].…”

Section: Preparation Of Composite Materials From Self-assembled Chitin Nanofibersmentioning

confidence: 99%

Preparation of Composite Materials from Self-Assembled Chitin Nanofibers

Kadokawa

2021

Polymers

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“…Cellulose was mainly exploited for the preparation of biopolymer blends in ionic liquids. Cellulose in the form of pulp [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ], linter [ 9 , 10 ], microgranular [ 11 , 12 , 13 ], microcrystalline [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ], and fabric [ 29 ] were usually used as raw materials for preparing biopolymer blends. On top of that, other biopolymers such as agarose [ 30 ], alginate [ 31 , 32 ], chitin [ 10 , 17 , 26 , 27 , 31 , 33 ], chitosan [ 1 , 4 , 5 , 7 , 29 , 30 , 34 , 35 , 36 ], chondroitin sulfate [ 37 ], collagen [ 24 , 32 ], keratin [ 6 , 8 ...…”

Section: Introductionmentioning

confidence: 99%

A Concise Review on the Physicochemical Properties of Biopolymer Blends Prepared in Ionic Liquids

2021

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An enhancement of environmental concern lately has improved the awareness of researchers in employing eco-friendly solvents for processing biopolymers. Recently, ionic liquids have been utilized to prepare biopolymer blends as they are non-volatile and recyclable. Biopolymers such as cellulose, chitin, chitosan, keratin, lignin, silk, starch, and zein are widely used for the preparation of biopolymer blends via dissolution in ionic liquids, followed by coagulation procedure. In this concise review, three types of ionic liquids based on imidazolium cations combined with different counter anions that are frequently utilized to prepare biopolymer blends are described. Moreover, three types of biopolymer blends that are prepared in ionic liquids were classified, specifically polysaccharide/polysaccharide blends, polysaccharide/polypeptide blends, and polysaccharide/bioplastic blends. The physicochemical properties of biopolymer blends prepared in different imidazolium-based ionic liquids are also concisely reviewed. This paper may assist the researchers in the polymer blend area and generate fresh ideas for future research.

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“…When the dispersion was filtered, the isolated self-assembled chitin nanofibers (CNFs) got highly entangled resulting in the formation of a film [ 13 , 14 , 15 ]. The dispersion has been used with other polymeric components such as cellulose, carboxymethyl cellulose, and poly(vinyl alcohol) to obtain CNF-containing composite materials [ 13 , 16 , 17 ]. As nanofibrillation is one of the efficient approaches for the functionalization of chitin, CNFs prepared by various techniques have been employed to fabricate composite materials besides those in the above studies [ 7 , 13 , 14 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Self-Assembled Chitin Nanofiber-Natural Rubber Composite Sheets and Porous Materials

Kawano¹,

Yamamoto²,

Kadokawa³

2017

Biomolecules

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We previously reported the preparation of a self-assembled chitin nanofiber (CNF) film via regeneration from an ion gel with an ionic liquid, followed by sonication and filtration. Based on the finding that CNFs were redispersed in a mixture of the film with ammonia aqueous solution (aq.), in this study, CNF-natural rubber (NR) composite sheets were fabricated by mixing redispersed CNF with NR latex stabilized by ammonia, followed by drying under reduced pressure. Tensile testing of the sheets indicated the reinforcing effect of CNFs. Further, CNF-NR composite porous materials were fabricated by evaporating ammonia from the CNF-NR dispersion, followed by lyophilization. The mechanism for the formation of porous structures was evaluated.

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Preparation of Chitin Nanofiber-Reinforced Cellulose Films Through Stepwise Regenerations from Individually Prepared Ion Gels

Cited by 23 publications

References 37 publications

Preparation of Composite Materials from Self-Assembled Chitin Nanofibers

Preparation of Composite Materials from Self-Assembled Chitin Nanofibers

A Concise Review on the Physicochemical Properties of Biopolymer Blends Prepared in Ionic Liquids

Preparation of Self-Assembled Chitin Nanofiber-Natural Rubber Composite Sheets and Porous Materials

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