By different the DP of your polystyrene block, we successfully controlled the different mole fractions in the CP practical block. We Be aware that block copolymers PS- b -PCPR could also be obtained by the reverse means of increasing the useful monomer CPR onto polystyrene macro-CTAs. Cao Dâm Dương Hoắc: https://francism318ckq5.tnpwiki.com/user