초록 |
Tubular materials formed by self-assembly of small organic molecules find great utility in chemical and material science. Conventional tubular structures often lack stability because noncovalent molecular interactions are responsible for their conformational integrities. One obvious way to make a tubular structure rigid is to connect the component molecules using covalent bonding. Introduction of photopolymerizable diacetylene (DA) moieties to the self-assembled tubular structure not only makes the tube rigid but it also affords the tube chromogenic after polymerization. Based on this strategy, we have prepared tubular conjugated polymers using amphiphilic or macrocyclic DAs. The resultant conjugated polymer, polydiacetylene (PDA), displayed stimulus-responsive color changes upon various chemical and physical stimulations. |