The Preparation and Characterization of ABC-Shaped Star Copolymer of MPEG-PCL-PBLG

Abstract:

A novel biodegradable ABC-shaped star copolymer, poly (ethylene glycol)(PEG)-b-poly (ε-caprolactone)(PCL)-poly-c-poly (ɤ-benzyl-L-glutamic acid)(PBLG)(MPEG-PCL-PBLG), was synthesized by the graft polymerization of MPEG-NH₂ with the core of Boc-LYSZ-COOH and the twice ring-opening polymerization (ROP) of ε-caprolactone (CL) and N-carboxyanhydride of ɤ-benzyl-L-glutamate (BLGNCA) with centrally amino-functionalized lysine as a initiator. The ABC-shaped star copolymer and its precursors were characterized by ¹H NMR, GPC, and DSC-TG measurements.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 1358-1362
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.1358
• Online since: August 2013
• Authors: Dian Guang Geng, Yong Ming Chuan, Li Li Li, Ming Long Yuan
• Keywords: ABC-Shaped Star Copolymer, Graft, ROP

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