期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 133, 期 4, 页码 -出版社
WILEY
DOI: 10.1002/app.42906
关键词
cellulose and other wood products; composites; elastomers; gels
资金
- JSPS KAKENHI [26620178, 26712016]
- Grants-in-Aid for Scientific Research [26712016, 26620178] Funding Source: KAKEN
We fabricate composite hydrogels using surface-modified cellulose nanofiber (CNF) and N-isopropylacrylamide (NIPAm) as a multifunctional crosslinker and monomer, respectively. We expect to produce unique network structures that lead to elastomeric properties rarely reported for CNF-based materials. The modification of CNF is performed to introduce polymerizable vinyl groups onto the surface of CNF via condensation between the surface hydroxyl groups and 3-(trimethoxysilyl)propylmethacrylate. The modification and morphology of the surface-modified CNF (mCNF) are confirmed by FTIR, solid-state NMR, and FE-SEM, respectively. We conduct in situ radical polymerization under various conditions using mixtures of the mCNF aqueous suspension, NIPAm monomer, radical initiator, and catalyst. The mechanical properties of the obtained hydrogels (water content = 90 wt %) are evaluated. The gels can be elastically stretched to more than 700 times their original lengths and exhibit an apparent shape recovery with a small permanent deformation (similar to 1/5 of the applied deformation under the gravity field). (C) 2015 Wiley Periodicals, Inc.
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