RESULTS AND DISCUSSION
In the gels constituted of Carbopol 940 and Carbopol
Ultrez, it was necessary to add sodium hydroxide to
neutralize the polymers’ carboxylic groups, leading to the
‘‘opening’’ of its chain. After reaching the chain linear
conformation, the gel thickening was obtained.[4]
Figures 1–6 show the results of the rheological characterization
of the studied gels.