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Control of Mesh Size and Modulus by Kinetically Dependent Cross‐Linking in Hydrogels
Author(s) -
Zander Zachary K.,
Hua Geng,
Wiener Clinton G.,
Vogt Bryan D.,
Becker Matthew L.
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201501822
Subject(s) - self healing hydrogels , materials science , swelling , kinetics , neutron scattering , chemical engineering , modulus , small angle neutron scattering , elastic modulus , dynamic mechanical analysis , composite material , scattering , polymer chemistry , optics , physics , quantum mechanics , engineering , polymer
Kinetically controlled cross‐linking processes produce mechanically distinguishable hydrogels using identical precursor chemistry. The oxime ligation demonstrates tunable reaction kinetics with pH and buffer strength, which induce changes in the structural features of hydrogels and determine their mechanical properties. Small‐angle neutron scattering and swelling studies provide an insight into how structural properties correlate with mechanical properties for this hydrogel system.