Synthesis of Three Types of Amphiphilic Poly(ethylene glycol)-block-Poly(sebacic anhydride) Copolymers and Studies of their Micellar Solutions
| Autor: | Jian Ren Gu, Shengrong Guo, Na Zhang, Li Liu, Hui Qin Li, Zong Hai Li |
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| Rok vydání: | 2006 |
| Předmět: |
Aqueous solution
Condensation polymer Hydrodynamic radius Materials science Polymers and Plastics Organic Chemistry technology industry and agriculture Concentration effect macromolecular substances Condensed Matter Physics Micelle Polymer chemistry Micellar solutions Amphiphile Materials Chemistry Copolymer Physical and Theoretical Chemistry |
| Zdroj: | Macromolecular Chemistry and Physics. 207:1359-1367 |
| ISSN: | 1521-3935 1022-1352 |
| DOI: | 10.1002/macp.200600100 |
| Popis: | Linear, three- and four-armed block copolymers based on PEG and PSA were synthesized by melt polycondensation reactions. The CMC of the copolymer was measured using the dye solubilization method. The copolymers were found to self-aggregate in water to form micelles above the CMC. The micellar solutions were prepared with different methods and investigated by DLS and AFM. The DLS method was used to measure the mean hydrodynamic diameters of the micelles. It was found that preparation method and condition of the micellar solution, as well as the structure and composition of the copolymer had effects on the hydrodynamic diameter of the copolymer micelles. AFM studies showed that the morphology of the micelle was spherical. |
| Databáze: | OpenAIRE |
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