Synthesis and electrochemical studies of new styrenic poly(ionic liquid)s based on the 1-methyl-1,2,3-benzotriazolium cation

Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

“…The monomers, 1-methyl-3-hydroxyundecyl imidazolium bromide (HOC 11 C 1 ImBr), 27 , and hydroxyundecyl triethylammonium bromide, 28 , have been found to be useful in preparing new classes of PIL by condensation polymerization. Both have been used in preparing polyurethane PILs and nanoparticles . Similarly, HOC 11 C 1 ImBr has been key in preparing self-dispersing polyurethane PIL dispersions , and polyester dispersions (Section ).…”

“…Both have been used in preparing polyurethane PILs and nanoparticles. 77 Similarly, HOC 11 C 1 ImBr has been key in preparing self-dispersing polyurethane PIL dispersions 71,98 and polyester dispersions (Section 2.4). 99 Morozova et al 100 introduced the IL diol pyrrolidine, imidazolium, morpholino, and ammonium monomers 29−36, to provide PIL polyurethanes (PUs) fabricated with hexamethylene diisocyanate and with 4,4′-methylenebis(cyclohexyl isocyanate).…”

“…Similarly, Jahed and Galehassadi modified 1,2,3-benzotriazole with 1-vinyl-4-chloromethylstyrene to make the 1-methyl-3-(4-vinylbenzyl)-1,2,3-benzotriazolium chloride shown in Scheme 1. 77 They found that the homopolymer of this monomer provided a larger electrochemical potential window than polystyrene after the chloride was exchanged for hexafluorophosphate by anion exchange. Large potential windows for IL-based liquids and materials are generally provided by ILs.…”

Synthesis, characterization and study of electrochemical applicability of novel asymmetrically substituted 1,3-dialkyl-1,2,3-benzotriazolium salts for supercapacitor fabrication

“…Benzotriazolium cations can form ionic liquids comparable to triazolium cations, even though relatively very few benzotriazolium salts have been published and are almost exclusively halides. 36,37 For N-alkylation of benzotriazoles, different reagents and bases are used, such as sodium ethoxide, potassium hydroxide, potassium t-butoxide, and KF/Al 2 O 3 , by using benzotriazole as a base in surplus amounts, NCS/PPh 3 , Pd(PPh 3 ), Pd/Cu(II)/base, Cu(OAc) 2 /NaH and sodium hydroxide (in ionic liquid). [38][39][40][41] The majority of these methods have several downsides, such as their lack of simplicity, usage of a toxic solvent, the need for catalysts, need for as base, lower yields of the products, or a large amount of waste from which the solvent cannot be recovered.…”

Preparation of an Interpenetrating Network of a Poly(ampholyte) and a Cholesteric Polymer and Investigation of Its Hydrochromic Properties

“…Poly­(ionic liquids) are materials prepared by the polymerization of ionic liquids and as a consequence contain ionic species as part of the polymer chain. − Because of this, poly­(ionic liquids) have expanded the properties and applications of ionic liquids in various directions, such as in stimuli-responsive materials, − gas separation/storage/transport, − electrochemistry, − and biorelated research. , Incorporation of either or both of the cationic and/or anionic moieties in the polymer chain may result in various polyionic architectures, that is, polycationic, polyanionic, amphoteric, and zwitterionic polymers, with various physical, chemical, and mechanical properties. − Poly­(ampholytes) and zwitterionic ionic liquid polymers, in which both the cation and the anion are fixed in the polymer chain, are especially interesting as they contain no free ions, which ensures that devices based on these materials have good long-term stability. − Such materials would be ideal for the preparation of humidity-responsive photonic materials based on the structural color, provided that some form of structural element can be added to them. Cholesteric liquid crystals (CLCs) could provide such structural elements, as they are able to selectively reflect one handedness of circularly polarized light due to the presence of a helical molecular organization, with the reflected wavelength being proportional to the length of the helical pitch, which is the distance of one full director rotation .…”