<i>cis</i>-/<i>trans</i>-Specific Synthesis of Functionalized Bottlebrush Ring Opening Metathesis Polymerization Polymers Containing Terthiophene and Pyrene That Exhibit Unique Thermal and Emission Properties.

ABSTRACT: Z-Specific (99% cis) and E-specific (90% trans) syntheses of functionalized bottlebrush polymers (BBPs) by living ring opening metathesis polymerization (ROMP) of exo-N-substituted norbornene-2,3-dicarboximides (NDIs) containing terthiophene (3T) and pyrene (Pyr) moieties connected to a long methylene spacer (n-dodecyl) have been demonstrated by the (arylimido)-vanadium(V)-alkylidene catalysts in toluene at 50 °C. Thermal properties in the resultant BBPs measured by DSC thermograms are affected by the cis/trans selectivity; the resultant cis-BBPs containing 3T possessed a melting temperature at 111.2 °C, whereas the corresponding trans-BBPs are amorphous. The differences in cis-/trans-BBPs (containin

SUBMITTER: Jaiyen K 

PROVIDER: S-EPMC11924324 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature