Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2338007
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An understanding of the physical hydrogel network formation has been obtained by dynamic rheological experiments. The evidence shows that the network formation turns out to be a nucleation-controlled process. It was found that there exists a critical temperature T-c; fiber branching is greatly enhanced when the network formation is performed in the regime of T < T-c (T, the final setting temperature). This finding enables the authors to build significantly enhanced gel networks. So far G(') (elastic modulus) of the hydrogel network has been enhanced by 187% while the formation period can be greatly shortened to only 1/20 of the previous process. (c) 2006 American Institute of Physics.
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