As already mentioned before, alcohols as solvents are well known to promote the disproportionation of Cu(I)X into Cu(0) and Cu(II)X which is a crucial step in SET-LRP. Additionally, more recent work of avoiding star-star coupling reactions show that Cu(0) mediated controlled radical polymerization techniques combine high-end group fidelity with fewer star-star coupling reactions observed. To overcome the problem of star-star-coupling observed in Figure the reaction type was changed from ATRP to SET-LRP, comparing iso-propanol and 1-octanol as solvent. Table sums up the reaction conditions used and Figure shows the corresponding SEC traces.