Dilithium initiator (LM-T) based on lithium-Aromatic complex was studied. Using LM-T as initiator and non-palar hydrocarbon as polymerization solvent

styrene-buta-diene-styrene triblock copolymer (SBS) was syntherized by one-step feed method. The characterization of SBS obtained by this initiator was curried out by means of IE

NME

GPC and mechanical properties determination. Comparison was made with sample prepared with monolithium initiator by twostep feed methed.