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Structure and Properties of Urea‐Crosslinked Star Poly[(ethylene oxide)‐ ran ‐(propylene oxide)] Hydrogels
Author(s) -
Dalton Paul D.,
Hostert Carolin,
Albrecht Krystyna,
Moeller Martin,
Groll Juergen
Publication year - 2008
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200800080
Subject(s) - self healing hydrogels , propylene oxide , ethylene oxide , polymer chemistry , poly ethylene , oxide , chemistry , chemical engineering , star (game theory) , polymer science , materials science , copolymer , ethylene , polymer , organic chemistry , engineering , mathematical analysis , mathematics , catalysis
Isocyanate‐terminated six armed star shaped macromers with a statistical copolymer backbone consisting of 80% EO and 20% PO have previously demonstrated excellent protein and cell repellence as nano‐layered surfaces. In this study, various macromers are mixed with water and provide a spectrum of materials that range from particles to uniform hydrogels. Due to hydrophobic end groups, 3kDa molecular weight macromers result in micro and nano‐particles, while 18 kDa macromers completely dissolve and consequently uniform, transparent, high water content hydrogels are formed. Oriented channels may be induced into these hydrogels through the controlled freezing of water in the preformed hydrogel.