Research Article

Collaboration between HPMC and NaCMC in order to Reach the Polymer Critical Point in Theophylline Hydrophilic Matrices

Table 3

%v/v of the components theophylline, HPMC and NaCMC and Higuchi’s slope values obtained for the ternary hydrophilic matrix systems.

Batch%v/v theophylline%v/v HPMC%v/v NaCMCHiguchi slope “ 𝑏 ” (g/cm2)

131.511.151.60.0095
230.821.640.30.0076
339.211.041.10.0104
438.321.530.10.0090
537.331.419.50.0092
747.311.030.90.0135
845.221.219.70.0097
945.231.79.90.0090
1253.810.820.10.0132
1353.021.39.90.0146
1662.210.910.20.0153