Hydrogels Prepared from Cross-Linked Nanofibrillated Cellulose

被引：94

作者：

Nair, Sandeep S. ^{[1
]}

Zhu, J. Y. ^{[3
]}

Deng, Yulin ^{[2
]}

Ragauskas, Arthur J. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

[3] US Forest Serv, USDA, Forest Prod Lab, Madison, WI 53726 USA

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2014年 / 2卷 / 04期

关键词：

Nanofibrillated cellulose; Hydrogels; Water absorption; Gel content; Thermal stability; Tensile property; NANOCOMPOSITE HYDROGELS; NETWORK STRUCTURE; NANO; POLY(N-ISOPROPYLACRYLAMIDE); FIBRILS; DESIGN;

D O I：

10.1021/sc400445t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocomposite hydrogels were developed by cross-linking nanofibrillated cellulose with poly(methyl vinyl ether-co-maleic acid) and polyethylene glycol. The cross-linked hydrogels showed enhanced water absorption and gel content with the addition of nanocellulose. In addition, the thermal stability, mechanical strength, and modulus increased with an increase in the amount of nanocellulose in hydrogels, and this can be attributed to efficient cross-linking between the nanocellulose and the matrix. The addition of softwood nanocellulose showed much higher strength and strain properties in the hydrogels than with the addition of hardwood nano cellulose. The enhanced physical properties confirm that in situ cross-linking of nanofibrillated cellulose with the matrix polymer forms hydrogels that are not just blends of starting materials but are distinctively unique and formed by cross-linking interactions between the filler and matrix.

引用

页码：772 / 780

页数：9

共 32 条

[1] Extraction of nanocellulose fibrils from lignocellulosic fibres: A novel approach [J].

Abraham, E. ;

Deepa, B. ;

Pothan, L. A. ;

Jacob, M. ;

Thomas, S. ;

Cvelbar, U. ;

Anandjiwala, R. .

CARBOHYDRATE POLYMERS, 2011, 86 (04) :1468-1475

[2] Polymers in sensor applications [J].

Adhikari, B ;

Majumdar, S .

PROGRESS IN POLYMER SCIENCE, 2004, 29 (07) :699-766

[3]

[Anonymous], MAT SCI ENG R

[4] Improving the mechanical and thermal properties of gelatin hydrogels cross-linked by cellulose nanowhiskers [J].

Dash, Rajalaxmi ;

Foston, Marcus ;

Ragauskas, Arthur J. .

CARBOHYDRATE POLYMERS, 2013, 91 (02) :638-645

[5] Biocomposite Hydrogels with Carboxymethylated, Nanofibrillated Cellulose Powder for Replacement of the Nucleus Pulposus [J].

Eyholzer, C. ;

de Couraca, A. Borges ;

Duc, F. ;

Bourban, P. E. ;

Tingaut, P. ;

Zirnmermann, T. ;

Manson, J. A. E. ;

Oksman, K. .

BIOMACROMOLECULES, 2011, 12 (05) :1419-1427

[6]

Fengel D., 1984, WOOD CHEMISTRY ULTRA

[7] Characterization of water in bacterial cellulose using dielectric spectroscopy and electron microscopy [J].

Gelin, Kristina ;

Bodin, Aase ;

Gatenholm, Paul ;

Mihranyan, Albert ;

Edwards, Katarina ;

Stromme, Maria .

POLYMER, 2007, 48 (26) :7623-7631

[8] A novel nanocomposite film prepared from crosslinked cellulosic whiskers [J].

Goetz, Lee ;

Mathew, Aji ;

Oksman, Kristiina ;

Gatenholm, Paul ;

Ragauskas, Arthur J. .

CARBOHYDRATE POLYMERS, 2009, 75 (01) :85-89

[9] Poly(methyl vinyl ether-co-maleic acid)-Polyethylene Glycol Nanocomposites Cross-Linked In Situ with Cellulose Nanowhiskers [J].

Goetz, Lee ;

Foston, Marcus ;

Mathew, Aji P. ;

Oksman, Kristiina ;

Ragauskas, Arthur J. .

BIOMACROMOLECULES, 2010, 11 (10) :2660-2666

[10] Effects of clay content on the properties of nanocomposite hydrogels composed of poly(N-isopropylacrylamide) and clay [J].

Haraguchi, K ;

Takehisa, T ;

Fan, S .

MACROMOLECULES, 2002, 35 (27) :10162-10171

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