On-line Monitoring for the Synthesis of N,N-Dimethylacrylamide Hydrogels by UV-Spectrometry

GARCÍA, VALERIA S.; CLEMENTI, LUIS; GUTIERREZ, CAROLINA G.; VERA-CANDIOTI, LUCIANA; GONZALEZ, VERÓNICA D.G.; GUGLIOTTA, LUIS M.

Cancún

Simposio; XV Simposio Latinoamericano de Polímeros, XIII Congreso Iberoamericano de Polímeros; 2016

Hydrogels are polymeric materials constituted by a tridimensional network of highly crosslinked polymeric chains. Main application of hydrogels are as absorbents, membranes, coatings, catalytic supports, fragmentation of biopolymers, drug delivery systems, and sensors. The internal structure of hydrogels is of great importance since it influences some of its final properties. In general, the internal structure of an hydrogel is mainly defined along the reaction. Unfortunately, only few methods have been reported for monitoring the synthesis of hydrogels, and are based on complicated techniques. In this work, the UV spectrometry technique is studied as a way of monitoring the synthesis of N,N-dimethylacrylamide (DMA) hydrogels. For comparison purposes, independent estimation of monomer conversion and free double bounds along the polymerization were also performed.