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Kuan-Kai Huang, Yi-Kai Fang, Jung-Ching Hsu, Chi-Ching Kuo, Wei-Hsuan Chang and Wen-Chang Chen Synthesis, micellar structures, and multifunctional sensory properties of poly(3-hexylthiophene)-block-poly(2-(dimethylamino)ethyl methacrylate) rod-coil diblock copolymers Journal of Polymer Science Part A: Polymer Chemistry 49

Version of Record online: 11 NOV 2010 | DOI: 10.1002/pola.24429

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New conjugated rod-coil block copolymers P3HT-b-PDMAEMA with three different coil lengths were synthesized by the ATRP method. The micelles of P3HT20-b-PDMAEMA43 in water had a reversible size change on heating/cooling cycle or varying the pH values. The micellar structure of three P3HT-b-PDMAEMA copolymers changed from spheres, to vesicles, and finally to larger sphere micelles as the solvent composition varied from 0 to 100 wt % water in the mixed solvent. The different micellar structures of P3HT20-b-PDMAEMA43 solution led to a red-shift on the absorption or photoluminescence spectra and exhibited the emission colors of yellow, orange, red, and dark red with increasing the water content.

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