Relating Structure to Properties in Non‐Conjugated Pendant Electroactive Polymers

Abstract

Non‐conjugated pendant electroactive polymers (NCPEPs) are an emerging class of polymers that offer the potential of combining the desirable optoelectronic properties of conjugated polymers with the superior synthetic methodologies and stability of traditional non‐conjugated polymers. Despite an increasing number of studies focused on NCPEPs, particularly on understanding fundamental structure‐property relationships, no attempts have been made to provide an overview on established relationships to date. This review showcases selected reports on NCPEP homopolymers and copolymers that demonstrate how optical, electronic, and physical properties of the polymers are affected by tuning of key structural variables such as the chemical structure of the polymer backbone, molecular weight, tacticity, spacer length, the nature of the pendant group, and in the case of copolymers the ratios between different comonomers and between individual polymer blocks. Correlation of structural features with improved π‐stacking and enhanced charge carrier mobility serve as the primary figures of merit in evaluating impact on NCPEP properties. While this review is not intended to serve as a comprehensive summary of all reports on tuning of structural parameters in NCPEPs, it highlights relevant established structure‐property relationships that can serve as a guideline for more targeted design of novel NCPEPs in the future.

One-Step Catalyst-Transfer Macrocyclization: Expanding the Chemical Space of Azaparacyclophanes

“…Conversely, no conversion was observed when monomers bearing an N -mesityl were used (Table S4, entry 3). Considering that carbazole is a privileged chromogenic unit in organic electronics, , 9 was also successfully prepared (global yield: 79%) starting from monomer M9 . As observed for other APCs, the six-membered ring, 9 6N , was revealed to be the most abundant (based on analytical GPC and HR-MALDI-TOF MS), followed by 5- and 7-membered rings.…”

One-step Catalyst-Transfer Macrocyclization: Expanding the Chemical Space of Azaparacyclophanes

“…Conversely, when monomers bearing a N-mesityl were used, no conversion was observed (Table S4, entry 3). Considering that carbazole is a privileged chromogenic unit in organic electronics, [53][54] APC9 was also successfully prepared (total yield: 79%) starting from monomer M9. As observed for other APCs, the six-membered ring, APC9-6N, revealed to be the most abundant (based on analytical GPC and HR-MALDI-TOF MS), followed by 5-and 7-membered rings.…”