Double-networks based on interconnected amphiphilic “in–out” star first polymer conetworks prepared by RAFT polymerization
Date
2018Author
Kitiri, Elina N.Varnava, Constantina K.
Patrickios, Costas S.
Voutouri, Chrysovalantis
Stylianopoulos, Triantafyllos
Gradzielski, Michael
Hoffmann, Ingo
ISSN
1099-0518Source
Journal of Polymer Science Part A: Polymer ChemistryVolume
56Issue
19Pages
2161-2174Google Scholar check
Metadata
Show full item recordAbstract
Double-network hydrogels were prepared using well-defined first networks comprising interconnected amphiphilic “in-out” star copolymers synthesized via sequential reversible addition-fragmentation chain transfer (RAFT) polymerization, and second networks based on a photopolymerized mixture of acrylamide and N,N′-methlyenebisacrylamide. All first and double-network hydrogels were characterized in terms of their aqueous degrees of swelling and mechanical properties in compression. The most hydrophobic first and double-network hydrogels exhibited the best mechanical properties, which may be attributed to their low aqueous swelling degrees and good mesoscale organization in water as revealed using small-angle neutron scattering (SANS) which showed that the size of the formed hydrophobic domains could be controlled by the polymer conetwork structure. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2161–2174