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- W2380932524 abstract "The hydrogel strength of ampholytic hydrogels was improved by copolymerizing anionic acrylate polyurethane prepolymer (PU) with methacryloxyethyl benzyl dimethyl ammonium chloride (MAEBDAC) to prepare a series of ampholytic hydrogels defined as sample L1-L5. The differential scanning caiorimetry (DSC) curves of dried hydrogels sample L1, L3 and L5 with anion/cation molar ratios of 0. 3/3, 1/1 and 1. 3/1 had only one glass transition temperature, indicating only one phase. No pores were observed in the cross-section of dried hydrogel sample L3 with a freezable water content of 11.7% of the total water content. However, large numbers of pores were present in sample L1 and L5 with freezable water contents of about 50%. Moreover, the swelling properties depended on the nature of the net charge density within the hydrogels. Typical antipolyelectrolyte behavior in NaCl aqueous solution was noticed in sample L3. The hydrogel strength is improved with more PU chains in the hydrogel." @default.
- W2380932524 created "2016-06-24" @default.
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- W2380932524 date "2004-01-01" @default.
- W2380932524 modified "2023-09-24" @default.
- W2380932524 title "Ampholytic hydrogels with polyurethane prepolymer as the crosslinking agent" @default.
- W2380932524 hasPublicationYear "2004" @default.
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