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Novel Developed Systems and Techniques Based on Double-Network Principle

BCSJ84-12_1295-1311.pdf2.22 MBPDF見る/開く

タイトル: Novel Developed Systems and Techniques Based on Double-Network Principle
著者: Wu, Zi Liang 著作を一覧する
Kurokawa, Takayuki 著作を一覧する
Gong, Jian Ping 著作を一覧する
発行日: 2011年12月
出版者: Chemical Society of Japan
誌名: Bulletin of the Chemical Society of Japan
巻: 84
号: 12
開始ページ: 1295
終了ページ: 1311
出版社 DOI: 10.1246/bcsj.20110201
抄録: The double-network hydrogels (DN gels), developed by our group in 2003, have attracted increasing attention due to their excellent mechanical performance and unique fracture mechanism. The anomalously large fracture energy of DN gels up to 2200 J/m2 originates from the specific combination of two networks with contrasting properties. The first brittle network serves as sacrificial bonds, which breaks into small clusters to efficiently disperse the stress around the crack tip into the surrounding damage zone, while the second ductile polymer chains act as hidden length, which extends extensively to sustain large deformation. The DN gels also exhibit good biocompatibility and low friction resistance. Owing to these superior properties, DN gels possess promising prospective in industrial and medicine fields, especially for load-bearing artificial soft tissues such as artificial cartilage. However, there are several critical problems limiting the practical applications of DN gels, such as how to produce tough artificial tissue with complex shapes or bond a gel to a solid substrate. To address these specific issues, we have developed new systems and techniques based on the DN principle. These achievements, including synthesis of ultrathin DN gels, bonding of one gel to another gel or solid substrate, free-shaping of DN gels, enhancing typical single network gels by creating a DN structure, will be briefly introduced in this account paper. We believe that these new techniques will substantially promote the practical applications of DN hydrogels and extent the DN principle to other systems.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 龔 剣萍 (Gong Jian Ping)


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