Table 1. Size Distribution of Particles Prepared Using Different Polymer-to-Surfactant Ratios.

weight % surfactanta	Zaverage (nm)	PDI	zeta potential (mV)	conductivity (μS cm–1)
16.12	196 ± 83	0.097	–49.7	29.6
8.77	217 ± 78	0.108	–41.7	31.7
3.70	191 ± 49	0.090	–39.8	9.69
1.89	191 ± 45	0.095	–30.0	6.23
0.95	159 ± 56	0.388	–28.4	5.51
0.38	269 ± 45	0.100	–27.3	5.52
0.19	226 ± 44	0.136	–24.1	4.00
0.00	180 ± 29	0.414	–19.6	2.74

^aPMMA used in the experiment was 20 mg.