Star polymer synthesis using hexafluoropropylene oxide as an efficient multifunctional coupling agent

Macromolecules

Volumn 37, Issue 17, 2004, Pages 6355-6361

  Switek, Karen A ^a   Bates, Frank S ^b   Hillmyer, Marc A ^a  

^a University of Minnesota   (United States)

^b UNIVERSITY OF MINNESOTA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

LINKING AGENTS; MASS ANALYZERS; MULTIFUNCTIONAL COUPLING AGENTS;

ANIONIC POLYMERIZATION; CONDENSATION; LASERS; LIQUID CHROMATOGRAPHY; METHANOL; MOLECULAR WEIGHT; PRECIPITATION (CHEMICAL); SYNTHESIS (CHEMICAL);

ORGANIC POLYMERS;

EID: 4444311383     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma035936h     Document Type: Article

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28. Due to experimental difficulties encountered when using the functionalized 1-tert-butyldimethylsiloxypropyllithium initiator, unrelated to the HFPO coupling reaction, only 80% coupling efficiency was observed for this sample. However, when using sec-butyllithium, our results were very reproducible and we consistently observed the three-armed star polymer in excellent yield under the reported optimal conditions.