Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 22, Issue 21, Pages 4426-4432Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201200809
Keywords
hydrogels; composite materials; polymeric materials
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Funding
- JSPS
- Ministry of Education, Science, Sports and Culture of Japan [18002002]
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Double-network hydrogels (DN gels), despite their high water content, are the strongest and toughest soft and wet materials available. However, in conventional DN gels, which show extraordinarily high mechanical performance comparable to that of industrial rubbers, the first network must be a strong polyelectrolyte and this requirement greatly hinders the widespread application of these gels. A general method involving the use of a molecular stent for the synthesis of tough DN gels using any hydrophilic polymer as the first network is reported. This is the first reported method for the synthesis of tough DN gels using various neutral or weak polyelectrolyte hydrogels as the first network. This method helps extend the DN gel concept to various functional polymers and may increase the number of applications of hydrogels in various fields.
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