ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Properties of a poly(ethylene glycol)-block-poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) copolymer membrane

Guo-Quan Zhu

School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, China

E-mail: guoquanzhu111@163.com

Received: 8 June 2009  Revised: 27 July 2009  Accepted: 17 August 2009

Abstract: Poly(ethylene glycol)-block-poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) (PEG-block-PBLG-graft-PEG) copolymer was synthesized by the ester exchange reaction of PBLG-block-PEG copolymer with a PEG chain. Surface morphology of the PEG-block-PBLG-graft-PEG copolymer membrane was characterized by atomic force microscopy (AFM). Mechanical and chemical properties of the PEG-block-PBLG-graft-PEG copolymer membrane were investigated by tensile testing and contact angle testing. The effects of grafting ratio on the properties of PEG-block-PBLG-graft-PEG copolymer membrane were primarilly studied.

Keywords: membrane - grafting ratio - poly(ethylene glycol)-block-poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) - morphology

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-009-0090-y

Chemical Papers 64 (1) 34–39 (2010)