Figure 6: Optical micrographs of 40:60 PANi/PCL blend (40 wt% PANi and 60 wt% PCL) under 100X magnification. The sample was heated and cooled at 10 ^oC/min from 28 ^oC to 100 ^oC. The bright areas in optical micrographs indicate the presence of crystals and the dark or greenish areas indicate the presence of doped PANi particles or empty spaces.

(a) Cross polarized 40:60 blend at room temperature before heating.

(b) Non-cross polarized at 56.7 ^oC while heating.

(c) Partially cross polarized at 99.7 ^oC while cooling down.

(d) Room temperature after fully cooled.