Synthesis of Paucidisperse Poly(γ-benzyl-α,l-glutamate) Oligomers and Star Polymers with Rigid Arms

Abstract

The synthesis of highly uniform γ-benzyl-α,l-glutamate (BLG) oligomers via a convergent solution phase approach is reported. BLG oligomers were produced with designed lengths of 4, 8, 12, and 16 as a first step to production of BLG-4-mer and BLG-8-mer rod stars. The star oligomers were purified by size-exclusion chromatography and reversed phase HPLC, and characterized by MALDI−TOF mass spectrometry and reversed phase HPLC. These star-shaped BLG oligomers could be used as initiators for growing larger stars