After successful homopolymer and triblock copolymers synthesis , we determined the theoretical and experimental Hansen solubility parameters (HSPs). Initially, the molar volume was calculated by Fedor's method (Table ) followed by theoretical SPs calculations by Hoftyzer Van-Krevelen (HnV) (Table -S24) and Yamamoto molecular break method (YMB) (Table ). The SPs values obtained by HnV method were not affected by degree of polymerization (DP), in contrast, in case of YMB, with the increasing DP, the SPs of selected homopolymer showed exponential increase and became physically unreasonable . For the sake of comparison with HnV method, a single repeat unit was used for YMB method.