The 35 wt % of EC blended with PLA has 1.908 x 10
-10
S cm
-1
shows the highest ionic
conductivity among other weight percent. This is because the EC at 35 wt % has reached the optimum
level of mobile charger and cause it has highest ionic conductivity [10].Besides that, the addition of
EC as plasticizer also decrease the ion pairing as they can effectively reduces the inter-ion Coulomb
interactions, hence it will enhance the LiClO
4
added later to be contributes more in conductivity of
polymer matrix. In general, all samples exhibit low ionic conductivity as there is no any salt or charge
carrier being doped into the polymer yet.