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UV-curable poly(ethylene glycol)–based polyurethane acrylate hydrogel

✍ Scribed by Byung Kyu Kim; Sang Hyun Paik

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
218 KB
Volume
37
Category
Article
ISSN
0887-624X

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✦ Synopsis

Poly(ethylene glycol) (PEG) with molecular weight (M n ) of 1000, 2000, 3000, and 4000 g/mol, four types of diisocyanate [hexamethylene diisocyanate (HDI), 4,4Ј-dicyclohexylmethane diisocyanate (H 12 MDI), isophorone diisocyanate (IPDI), and toluene diisocyanate (TDI)], two types of comonomers [acrylamide (AAm) and acrylic acid (AAc)] that comprised up to 60% of the total solid were used to prepare UV-curable PEG-based polyurethane (PU) acrylate hydrogel. The gels were evaluated in terms of mechanical properties, water content as a function of immersion time and pH, and X-ray diffraction profiles of dry and swollen films.

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