Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 32, Issue 21, Pages 1688-1698Publisher
WILEY-BLACKWELL
DOI: 10.1002/marc.201100378
Keywords
bergman cyclization; initiator; modification; radical polymerization; step-growth polymerization
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Funding
- National Natural Science Foundation of China [20874026, 20704013]
- Shanghai Shuguang Project [07SG33]
- New Century Excellent Talents in University
- Ph.D. Programs Foundation of Ministry of Education of China
- Shanghai Leading Academic Discipline Project [B502]
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Bergman cyclization of enediynes, regarded as a promising strategy for anticancer drugs, now finds its own niche in the area of polymer chemistry and material science. The highly reactive aromatic diradicals generated from Bergman cyclization can undergo polymerization acting as either monomers or initiators of other vinyl monomers. The former, namely homopolymerization, leads to polyphenylenes and polynaphthalenes with excellent thermal stability, good solubility, and processability. The many remarkable properties of these aromatic polymers have further endowed them to be manufactured into carbon-rich materials, e. g., glassy carbons and carbon nanotubes. Whereas used as initiators, enediynes provide a novel resource for high molecular weight polymers with narrow polydispersities. The aromatic diradicals are also useful for introducing oligomers or polymers onto pristine carbonous nanomaterials, such as carbon nano-onions and carbon nanotubes, to improve their dispersibility in organic solvents and polymer solutions.
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