At-Line Monitoring of Conversion in the Inverse Miniemulsion Polymerization of Acrylamide by Raman Spectroscopy

Autor(es)

Colman, Maria M. E. ^[1] ; Ambrogi, Paula M. N. ^[1] ; Serra, Cristiana S. R. ^[1] ; Araujo, Pedro H. H. ^[2] ; Sayer, Claudia ^[2] ; Giudici, Reinaldo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Chem Engn, Escola Politecn, Av Prof Luciano Gualberto, Travessa 3, 380, BR-05508010 Sao Paulo, SP - Brazil

^[2] Univ Fed Santa Catarina, Dept Chem Engn & Food Engn, BR-88040900 Florianopolis, SC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Industrial & Engineering Chemistry Research; v. 55, n. 22, p. 6317-6324, JUN 8 2016.
• Citações Web of Science: 1

Resumo

This work studied the at-line Raman spectroscopy monitoring for the inverse miniemulsion polymerization of acrylamide. The conversion,. was determined from the Raman spectra without previous. calibration :using the peaks corresponding to -CH2- and C=C functional groups of acrylamide. Gravimetric data: was used to validate the results of conversion obtained with the Raman spectra,: Dynamic light scattering was used to measure the particle size. The results show that high energy in the homogenization step increases the surface area of the droplets and generates a lack of surfactant, which results in larger diameters. It is possible to make at-line monitoring of monorner conversion diredly from, the Raman spectra without using calibration models. The data obtained show an incomplete conversion that is also confirmed by gravimetric analysis. (AU)

• Processo FAPESP: 13/50218-2 - CEPEMA - Centro Cooperativo em Engenharia Ambiental
• Beneficiário: Claudio Augusto Oller do Nascimento
• Modalidade de apoio: Auxílio à Pesquisa - Temático