Figure 8

Surface morphology (top), cross-section and shell thickness (bottom) of thermally polymerized capsules. (a) Particles prepared with Q_m:Q_s = 9:1 and 2.0 wt % initiator concentration. (b) Particles prepared with Q_m:Q_s = 1:1 and 2.0 wt % initiator concentration. (c) Particles with thin shell prepared with Q_m:Q_s = 1:9 and 5.0 wt % initiator concentration. (d) Particles with ultra-thin shell prepared with Q_m:Q_s = 1:99 and 15.0 wt % initiator concentration. All particles were produced at Q_{d, total} = 1.0 mL h⁻¹, Q_c = 8.0 mL h⁻¹ × 2.