Synthesis of high-strength microcrystalline cellulose hydrogel by viscosity adjustment

Deokyeong Choe, Young Min Kim, Jae Eun Nam, Keonwook Nam, Chul Soo Shin, Young Hoon Roh

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Developing hydrogels with enhanced mechanical strength is desirable for bio-related applications. For such applications, cellulose is a notable biopolymer for hydrogel synthesis due to its inherent strength and stiffness. Here, we report the viscosity-adjusted synthesis of a high-strength hydrogel through the physical entanglement of microcrystalline cellulose (MCC) in a solvent mixture of tetrabutylammonium fluoride/dimethyl sulfoxide (TBAF/DMSO). MCC was strategically dissolved with TBAF in DMSO at a controlled ratio to induce the formation of a liquid crystalline phase (LCP), which was closely related to the viscosity of the cellulose solution. The highest viscosity was obtained at 2.5% MCC and 3.5% TBAF, leading to the strongest high-strength MCC hydrogel (strongest HS-MCC hydrogel). The resulting hydrogel exhibited a high compressive strength of 0.38 MPa and a densely packed structure. Consequently, a positive linear correlation was determined between the viscosity of the cellulose solution and the mechanical strength of the HS-MCC hydrogel.

Original languageEnglish
Pages (from-to)231-237
Number of pages7
JournalCarbohydrate Polymers
Volume180
DOIs
Publication statusPublished - 2018 Jan 15

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Hydrogel
Hydrogels
Cellulose
Viscosity
Dimethyl Sulfoxide
Strength of materials
Biopolymers
Compressive strength
microcrystalline cellulose
Dimethyl sulfoxide
Stiffness
Crystalline materials
Liquids

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Choe, Deokyeong ; Kim, Young Min ; Nam, Jae Eun ; Nam, Keonwook ; Shin, Chul Soo ; Roh, Young Hoon. / Synthesis of high-strength microcrystalline cellulose hydrogel by viscosity adjustment. In: Carbohydrate Polymers. 2018 ; Vol. 180. pp. 231-237.
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Synthesis of high-strength microcrystalline cellulose hydrogel by viscosity adjustment. / Choe, Deokyeong; Kim, Young Min; Nam, Jae Eun; Nam, Keonwook; Shin, Chul Soo; Roh, Young Hoon.

In: Carbohydrate Polymers, Vol. 180, 15.01.2018, p. 231-237.

Research output: Contribution to journalArticle

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AU - Choe, Deokyeong

AU - Kim, Young Min

AU - Nam, Jae Eun

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AU - Roh, Young Hoon

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AB - Developing hydrogels with enhanced mechanical strength is desirable for bio-related applications. For such applications, cellulose is a notable biopolymer for hydrogel synthesis due to its inherent strength and stiffness. Here, we report the viscosity-adjusted synthesis of a high-strength hydrogel through the physical entanglement of microcrystalline cellulose (MCC) in a solvent mixture of tetrabutylammonium fluoride/dimethyl sulfoxide (TBAF/DMSO). MCC was strategically dissolved with TBAF in DMSO at a controlled ratio to induce the formation of a liquid crystalline phase (LCP), which was closely related to the viscosity of the cellulose solution. The highest viscosity was obtained at 2.5% MCC and 3.5% TBAF, leading to the strongest high-strength MCC hydrogel (strongest HS-MCC hydrogel). The resulting hydrogel exhibited a high compressive strength of 0.38 MPa and a densely packed structure. Consequently, a positive linear correlation was determined between the viscosity of the cellulose solution and the mechanical strength of the HS-MCC hydrogel.

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