Skip to main content
Article
Synthesis, Characterization, and Theoretical Morphology Predictions of Poly(cyclohexadiene) Containing Triblock Copolymers
Polymer (2013)
  • K. Misichronis
  • S. Rangou
  • E. Ashcraft
  • R. Kumar
  • M. Dadmun
  • B, G. Sumpter
  • N. E. Zafeiropoulos
  • Jimmy W. Mays, University of Tennessee, Knoxville
  • A. Avgeropoulus
Abstract
The synthesis via anionic polymerization of six linear triblock terpolymers with various sequences of blocks such as PS (polystyrene), PB [poly(butadiene)], PI [(poly(isoprene)] and PCHD [poly(1,3-cyclohexadiene)] is reported. The synthesis of the terpolymers was carried out by the use of anionic polymerization with high-vacuum techniques and sequential monomer addition. Molecular characterization of the samples was performed via size exclusion chromatography (SEC) and membrane osmometry (MO) to measure the polydispersity indices and the number-average molecular weights, respectively. Proton nuclear magnetic resonance spectroscopy (1H NMR) was employed to verify the microstructure type for the polydienes, as well as, to calculate the molar composition. Structural characterization of the terpolymers was performed via transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS), and several morphologies were observed including one which has not been reported previously. Real-space self-consistent field theory (SCFT) without a priori knowledge about the symmetry of the periodic structures was used to elucidate the thermodynamics of the synthesized triblock copolymers. http://dx.doi.org/10.1016/j.polymer.2013.01.005
Keywords
  • triblock terpolymer synthesis,
  • molecular/structural characterization,
  • self-cconsistent field theory
Disciplines
Publication Date
February, 2013
Citation Information
K. Misichronis, S. Rangou, E. Ashcraft, R. Kumar, et al.. "Synthesis, Characterization, and Theoretical Morphology Predictions of Poly(cyclohexadiene) Containing Triblock Copolymers" Polymer Vol. 54 Iss. 5 (2013)
Available at: http://works.bepress.com/jimmy_mays/5/