4,4′-(((Perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))-bis(2,3,5,6-tetrafluoropyridine)

Thompson, Kenneth D.; Weeks, Nathan J.; Balaich, Gary J.; Iacono, Scott T.

doi:10.3390/m1644

Cited by 1 publication

(2 citation statements)

References 13 publications

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“…The synthesis of TFP BPAF was carried out from previously published work, and the melting point was reported at 108 °C (DSC), which was not previously reported. 39 Instrumentation. 1 H, 13 C{ 1 H}, and 19 F NMR spectra were recorded on a Jeol 500 MHz spectrometer.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Fluorinated Pyridine Aryl Ether Polymers with Defined Microstructures, Diverse Architectures, and Tunable Thermal Properties

Surina,

Thompson,

Weeks

et al. 2024

Macromolecules

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By utilizing the unique regioselective nucleophilic aromatic substitution (SNAr) of pentafluoropyridine with bisphenols, a series of 4-substituted tetrafluoropyridine (TFP) aryl ether monomers were prepared in nearly quantitative yields from a facile, base-promoted methodology. Sequential regioselective SNAr of TFP monomers with bisphenols afforded linear amorphous, solution-processable fluorinated pyridine aryl ether polymers as well as networks. Room-temperature kinetic experiments using 19F NMR revealed high-molecular-weight polymers with nearly quantitative conversions. By the nature of the bisphenol substitution and its electronic effects, the polymer microstructure was tuned for a broad range of glass transition temperatures for optically transparent materials. This work will provide insights into synthetic routes toward TFP monomers, step-growth polymerization kinetics, molecular weight determination, and thermal properties.

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…Chemicals and solvents were purchased through commercial suppliers and used as received, as reagent grade, unless specifically noted. The synthesis of TFP BPAF was carried out from previously published work, and the melting point was reported at 108 °C (DSC), which was not previously reported …”

Section: Methodsmentioning

confidence: 99%