Rotaxanated Conjugated Sensory Polymers.

TitleRotaxanated Conjugated Sensory Polymers.
Publication TypeJournal Article
Year of Publication2004
AuthorsKwan, PH, MacLachlan, MJ, Swager, TM
JournalJournal of the American Chemical Society
Keywordsprepn fluorescence rotaxane conjugated sensory polyacetylene

The prepn. of two highly emissive conjugated polyacetylenes with tethered rotaxane repeat units are reported. Hydrogen bonding between acidic alcs. and the N-heteroarom. groups in the rotaxanes attenuates polymer fluorescence. In addn., the rotaxane groups create precise three-dimensional pockets for metal binding, which results in fluorescence quenching. Exposing thin films of Zn-doped polymers to alc. vapors reverses the quenching by up to 25%. [on SciFinder(R)]