Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 30, Issue 2, Pages 120-125Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200800601
Keywords
catalysts; conjugated polymers; polyacetylenes; polymerization
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Funding
- Program for New Century Excellent Talents in University [NCET-06-0096]
- National Science Foundation of China [20574004]
- Specialized Research Fund for the Doctoral Program of higher Education [20060010001]
- Major Project for Polymer Chemistry and Physics Subject Construction from Beijing Municipal Education Commission (BMEC) [XK100100433, XK100100540]
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Ten hydrophobic, substituted, acetylene monomers were examined as to their abilities to form an inclusion complex with hydroxypropyl-beta-cyclodextrin (HPCD). Only the monomers with suitable substitutents were found to form the monomer/HPCD complex, which was identified by NMR, FTIR, and UV-vis spectroscopy. Polymerizations of the monomers were successfully carried out in aqueous solution by using the prepared monomer/HPCD inclusion complex and by using a water-soluble Rh-based catalyst, [Rh(cod)(2)BF4] or [Rh(nbd)(H2O)OTs]. Such polymerizations provided high-yield (> 90%) polymers with a cis content of approximately 100%. The as-prepared polymers could take an ordered helical conformation, just like their counterparts obtained in organic solvents.
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