posted on 2013-06-19, 00:00authored byKaitlyn
E. Crawford, Lawrence R. Sita
External
control over the rate of dynamic methyl group exchange
between configurationally stable active species and configurationally
unstable dormant species with respect to chain-growth propagation
within a highly stereoselective and regiospecific living coordination
polymerization of 1,6-heptadiene has been used to generate a spectrum
of different physical forms of poly(1,3-methylenecyclohexane) (PMCH)
in which the stereochemical microstructure has been systematically
varied between two limiting forms. The application of this strategy
to manipulate the bulk properties of PMCH and the solid-state microphase
behavior of well-defined PMCH-b-poly(1-hexene) block
copolymers is further demonstrated.