Details

Autor(en) / Beteiligte

• Puig, L.J.
• Sánchez-Díaz, J.C.
• Villacampa, M.
• Mendizábal, E.
• Puig, J.E.
• Aguiar, A.
• Katime, I.

Titel

Microstructured Polyacrylamide Hydrogels Prepared Via Inverse Microemulsion Polymerization

Ist Teil von

• Journal of colloid and interface science, 2001-03, Vol.235 (2), p.278-282

Ort / Verlag

San Diego, CA: Elsevier Inc

Erscheinungsjahr

2001

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The synthesis by a two-stage polymerization process of microstructured polyacrylamide hydrogels with large swelling capacity and improved mechanical properties is reported. First, crosslinked polyacrylamide particles of nanosize scale are made by inverse microemulsion polymerization. These particles are then dried and redispersed in an aqueous solution of acrylamide and polymerized in the presence of a crosslinking agent. The microstructured hydrogels, in contrast to transparent conventional polyacrylamide hydrogels, are translucid due to the presence of the dispersed particles. The swelling capacity of these hydrogels increases as the particle content increases and their Young and elastic moduli (at equilibrium swelling) diminish only slightly. Mechanical tests disclose that the microstructured hydrogels have larger Young moduli than conventional hydrogels with an identical degree of swelling.