Effects of denaturing acid on the self-association behaviour of poly(ethylene glycol)-block-poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) copolymer in ethanol |
| |
| Authors: | Guo-Quan Zhu Qiao-Chun Gao Fa-Gang Wang Guo-Chang Li and Ping Wang |
| |
| Institution: | (1) Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials, The Education Department of Liaoning Province, College of Chemistry, Liaoning University, Shenyang, 110036, People’s Republic of China; |
| |
| Abstract: | Poly(ethylene glycol)-block-poly(γ-benzyl l-glutamate)-graft-poly(ethylene glycol) (PEG-b-PBLG-g-PEG) copolymer was synthesised by the ester exchange reaction of PEG-block-PBLG copolymer with mPEG. The self-association behaviour of PEG-b-PBLG-g-PEG in mixtures of ethanol, chloroform, and trifluoroacetic acid as denaturing acid was investigated by transmission electron
microscopy, nuclear magnetic resonance spectroscopy, FT-IR spectroscopy, dynamic light scattering, and viscometry. It was
revealed that the increase in denaturing acid content in the mixed system not only promoted the critical micelle concentration
but also changed the morphology of the polymeric micelles from elliptical to spherical. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
