Swelling and Diffusion Characteristics of Hydrogels Synthesized from Diepoxy-terminated Poly(ethylene glycol)s and Aliphatic Polyamines - Soft Materials - Volume 8, Issue 3. Hydrogels from diepoxy-terminated poly(ethylene glycol)s (PEG) of approximate molecular weights 600, 1,000, 2,000, and 4,000 Da and aliphatic polyamines with different numbers of amine hydrogen atoms (ethylene diamine, diethylenetriamine, triethylenetetramine, tris(2-aminoethyl)amine) in various combinations were synthesized and several means to adjust their water absorption were investigated.
It was shown that the equilibrium swelling degree (ESD) can be tuned by varying the cross-linking agent functionality and molecular weight (MW) of the PEG precursor, by either employing single components or mixtures of polyamines or PEG oligomers. The ESD was also influenced by the reaction time and concentration of oligomer in feed. Keywords Related articles View all related articles. US5990-6920EN.pdf (application/pdf Object)
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