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Synthesis of poly(epsilon-caprolactone)-b-poly(gamma-benzyl-L-glutamic Acid) Block Copolymer Using Amino Organic Calcium Catalyst

Synthesis of poly(epsilon-caprolactone)-b-poly(gamma-benzyl-L-glutamic Acid) Block Copolymer Using Amino Organic Calcium Catalyst

Guangzhuo Rong, Mingxiao Deng, Chao Deng, Zhaohui Tang, Longhai Piao, Xuesi Chen, Xiabin Jing

Biomacromolecules. Nov-Dec 2003;4(6):1800-4.

PMID: 14606911

Abstract:

A biodegradable two block copolymer, poly(epsilon-caprolactone)-b- poly(gamma-benzyl-L-glutamic acid) (PCL-PBLG) was synthesized successfully by ring-opening polymerization of N-carboxyanhydride of gamma-benzyl-L-glutamate (BLG-NCA) with aminophenyl-terminated PCL as a macroinitiator. The aminophenethoxyl-terminated PCL was prepared via hydrogenation of a 4-nitrophenethoxyl-terminated PCL, which was novelly obtained from the polymerization of epsilon-caprolactone (CL) initiated by amino calcium 4-nitrobenzoxide. The structures of the block copolymer and its precursors from the initial step of PCL were confirmed and investigated by 1H NMR, FT-IR, GPC, and FT-ICRMS analyses and DSC measurements.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS73145	Polypyrrole-block-poly(caprolactone)			Price

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