-“Crosslinking reactions and swelling behavior of matrices based on N-acryloyl-TRIS (hydroxymethyl)aminomethane”.

CECILIA I. ALVAREZ I.; DARIO ARRUA

POLYMER BULLETIN

Springer Verlag

Lugar: Heidelberg (Alemania); Año: 2005 vol. 55 p. 19 - 19

0170-0839

b> Summary-- In this study, new hydrogels in rod shape were prepared from N-acryloyl- TRIS(hydroxymethyl)aminomethane (NAT) using ethylene glycol dimethacrylate (EGDMA) or N,N´methylenebisacrylamide (BIS) as crosslinking agent, dimethylformamide (DMF) as solvent and benzoyl peroxide (BPO) as initiator. In  most cases, 2-hydroxyethyl methacrylate (HEMA), acrylamide (Aam) or acrylic acid (Aac) were used as co-monomers. The polymeric matrices obtained by free radical  polymerization exhibited different properties by changing crosslinker, crosslinker  concentration, co-monomer and initial NAT/co-monomer mole ratio. Besides,  hydrogels from HEMA, Aam and Aac with BIS in absence of NAT were p