title: Multiple Olefin Metathesis Polymerization That Combines All Three Olefin Metathesis Transformations: Ring-Opening, Ring-Closing, and Cross Metathesis.
abstract: We demonstrated tandem ring-opening/ring-closing metathesis (RO/RCM) polymerization of monomers containing two cyclopentene moieties and postmodification via insertion polymerization. In this system, well-defined polymers were efficiently formed by tandem cascade RO/RCM reaction pathway. Furthermore, these polymers could be transformed to new A,B-alternating copolymers via a sequential cross metathesis reaction with a diacrylate. Additionally, we demonstrated the concept of multiple olefin metathesis polymerization in which the dicyclopentene and diacrylate monomers underwent all three olefin metathesis transformations (ring-opening, ring-closing, and cross metathesis) in one shot to produce A,B-alternating copolymer.
authors.affiliation: †Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
authors.forename: Ho-Keun
authors.initials: HK
authors.lastname: Lee
authors.affiliation: †Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
authors.forename: Ki-Taek
authors.initials: KT
authors.lastname: Bang
authors.affiliation: †Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
authors.forename: Andreas
authors.initials: A
authors.lastname: Hess
authors.affiliation: ‡Department of Chemistry, California Institute of Technology, Pasadena, California 91125, United States.
authors.forename: Robert H
authors.initials: RH
authors.lastname: Grubbs
authors.affiliation: †Department of Chemistry, Seoul National University, Seoul 151-747, Korea.
authors.forename: Tae-Lim
authors.initials: TL
authors.lastname: Choi