Delabie, Jonas; Ceunen, Ward; Detavernier, Siebe; De Winter, Julien; Gerbaux, Pascal; Verbiest, Thierry; Koeckelberghs, Guy published their research in Macromolecules (Washington, DC, United States) in 2021. The article was titled 《Catechol as a Universal Linker for the Synthesis of Hybrid Polyfluorene/Nanoparticle Materials》.Reference of 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane The article contains the following contents:
The attachment of conjugated polymers (CPs), characterized by their optical and electronic properties and excellent processability, to inorganic nanoparticles (NPs), known for their specialized electronic and photonic properties, has proven to result in unique and promising (hybrid) materials. Although CPs can be functionalized with many different end groups, the process to find a correct match between the desired NP and appropriate functional group on the CP is often tedious and time-consuming. This study aims to solve this problem by investigating the potential of catechol as a universal linker mol. for the synthesis of hybrid CP/NP materials. First, the synthesis of poly(9,9-di((S)-3,7-dimethyloctyl)fluorene) via Suzuki-Miyaura catalyst transfer oxidative polycondensation using an external catechol Pd-initiator is studied. A chain-growth polymerization without transfer reactions for molar masses up to 28.3 kg mol-1 is established without degradation of the catechol in basic environments. These polymers are subsequently used to graft a variety of NP materials, including magnetic- (Fe3O4), plasmonic- (Au), and oxide-type (SiO2) NPs, proving its potential as a universal linker mol. In addition, the influence of the catechol group on the supramol. organization of free polyfluorene is studied by comparison with the well-known o-tolyl end-capped polyfluorenes. From these results, it can be concluded that the catechol group significantly disrupts the formation of well-defined supramol. architectures. Finally, as a preliminary study, the supramol. organization of the hybrid NPs is compared to the free polymer using solvatochromism experiments The results indicate an absence of chiral response upon fixation of the polymer onto a surface. In the experiment, the researchers used many compounds, for example, 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6Reference of 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane)
4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6) can be used as a substrate in the study of Suzuki–Miyaura coupling of various aryl iodides over SiliaCat Pd(0).Reference of 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane
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