Work

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

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide 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 (containing 3T, Pyr) toward the emission properties have also been demonstrated due to a different degree in the inter/intra-polymer interaction through the functionality.

Source: ACS Macro Letters

DOI: 10.1021/acsmacrolett.4c00845

Authors: Kanticha Jaiyen, Sirilak Mekcham, Daisuke Shimoyama, Akihiro Ohira, Kotohiro Nomura

Institutions: Tokyo Metropolitan University, National Institute of Advanced Industrial Science and Technology

Language: English

Topic: Advanced Polymer Synthesis and Characterization

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Tokyo Metropolitan Government, Japan Society for the Promotion of Science