Table 2.

Calculated MAA content of the nanoparticle formulations based on potentiometric titrations.

Formulation Name (Volume aqueous phase (mL)/Volume hexanes in organic phase (mL)	Measured MAA Mass% (mean ± SD)	Ratio of Measured MAA Mass% to Feed MAA Mass % (mean ± SD
P(AAm-co-MAA) 0.875/30	41.0 ± 4.2	1.548 ± 0.158
P(AAm-co-MAA) 1.75/30	45.8 ± 1.2	1.730 ± 0.046
P(AAm-co-MAA) 3.5/30	50.3 ± 5.7	1.899 ± 0.215
P(AAm-co-MAA) 0.4375/7.5	45.5 ± 2.5	1.717 ± 0.093
P(AAm-co-MAA) 3.5/60	46.0 ± 1.7	1.737 ± 0.066
P(NIPAM-co-MAA) 1.75/30	31.6 ± 1.1	1.656 ± 0.056
P(HEMA-co-MAA) 1.75/30	26.7 ± 3.5	1.560 ± 0.202