Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 30, Issue 13, Pages 1089-1093Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200900105
Keywords
azo polymers; diblock copolymers; photochemistry; self-assembly; vesicles
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Funding
- National Natural Science Foundation of China [50873028]
- Shuguang Plan of Shanghai Education Development Foundation [05SG07]
- Shanghai Leading Academic Discipline Project [B113]
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A novel amphiphilic diblock copolymer composed of a hydrophilic poly(ethylene oxide) and a hydrophobic polymethacrylate with photochromic azopyridine moieties in the side groups was synthesized by atom transfer radical polymerization. The copolymeric vesicles showed photoinduced circular process including fusion, damage and defect formation, disruption, disintegration and rearrangement in H2O/THF during the irradiation of UV light. The process of photoresponsive cycle can be inhibited at any moment by visible light.
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