L-Pyroglutamic Acid → L-Pyroglutamic Acid

Participants

Reaction Steps

In this experiment, a 0.5/19.5/80 Pyr-AMS/styrene/1,3-butadiene terpolymer was prepared. The procedure described in Example 1 was used except that a premix containing Pyr-AMS, styrene and 1,3-butadiene in hexane at a weight ratio of 0.5:19.5:80 was used as the monomer premix solution and the molar ratio of potassium 3,7-dimethyl-3-octanoxide to TMEDA to n-BuLi was 0.015:2:1. The GC analysis of residual monomer again showed that polymerization rates of the three monomers were almost identical indicating that both Pyr-AMS and styrene were randomly distributed along the polymer chain.

Provenance & Evidence