期刊
CARBOHYDRATE POLYMERS
卷 180, 期 -, 页码 231-237出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.10.017
关键词
Microcrystalline cellulose; High-strength hydrogel; Cellulose hydrogel; Viscosity
资金
- National Research Foundation of Korea (NRF) - Ministry of Education [2017R1A6A3A11029462]
- BK21 plus program
- Yonsei University Future-leading Research Initiative [2016-22-0054]
- Yonsei University Research Fund [2016-12-0238]
- National Research Foundation of Korea [2017R1A6A3A11029462] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据