초록 |
We synthesized the amphiphilic polymers consisting of alternating oligoaniline and oligo(ethylene glycol) (OEG) blocks with various weight fractions. The polymers were produced by polycondensation diamino-heptaaniline, protected with the tert-butoxycarbonyl groups, and Bis-dPEGn-NHS ester (n=13, 21, 25), respectively. The resultant polymers exhibited good solubility in common solvents, such as CHCl3, MC, THF, and NMP. We have also investigated the self-assembly of the polymers in the different oxidation states obtained by employing discrete deprotection methods. In case of synthetic polymers in THF/water, micellar aggregates or vesicles formed in different sizes varying with weight fractions of blocks. The nanostructures of the polymers in other oxidation states will be further studied. This work was supported by the Korea Science and Engineering Foundation grant [2010-0026421] funded by the Korean Government (MEST) and the Program for Integrated Molecular Systems at GIST. |