Electrostrictive Energy Conversion of Polyurethane with Different Hard Segment Aggregations

Figure 3

AFM topographic images of the free surfaces of (a, b) PU/DMF and (c, d) PU/DMSOA. All images are obtained from scanning rate at 1 s/line and 250 points/line.

(a)

(b)

(c)

(d)