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Non‐bond crosslinked macroporous thermally reversible hydrogels
Author(s) -
Avny Yair,
Zada Anat,
Zilkha Albert
Publication year - 2007
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.929
Subject(s) - self healing hydrogels , materials science , monomer , copolymer , swelling , polymer chemistry , ring (chemistry) , polymer , chemical engineering , double bond , molar ratio , composite material , organic chemistry , chemistry , catalysis , engineering
Non‐bond crosslinked macroporous thermally reversible hydrogels of poly‐ N ‐isopropylacrylamide were obtained by copolymerization with the crosslinking agent cyclic octaethylene glycol fumarate, a 29‐membered ring, having a polymerizable double bond; threading of polymer chains into the macrocyclic ring being the cause for the crosslinking. These hydrogels showed a high swelling capacity in water which could be controlled by varying the molar ratio of monomer/crosslinking agent. They rapidly ‘collapsed’ at 33° and swelled back at low temperatures. Copyright © 2007 John Wiley & Sons, Ltd.