Polymerization of the new double‐charged monomer bis‐1,3(N,N,N‐trimethylammonium dicyanamide)‐2‐propylmethacrylate and ionic conductivity of the novel polyelectrolytes

Abstract

aThe achievement of high ionic conductivity in single-ion conducting polymer electrolytes is one of the important aims for various electrochemical devices including modern lithium batteries. One way to enhance the ionic conductivity in polyelectrolyte systems is to increase the quantity of charge carriers in each monomer unit. Highly charged poly(bis-1,3(N,N,N-trimethylammonium)-2-propylmethacrylate) with one of the most conducting anions, namely dicyanamide, was prepared via free radical bulk polymerization or using ionic liquids as reaction medium. The cationic polymers of the double-charged monomer have molar masses up to M w ¼ 1,830,000 g/mol and the ionic conductivity equal to 5.51 T 10 S5 S/cm at 25-C. The film forming ability, crystallinity, thermal stability, and glass transition temperatures of the new polymeric ionic liquids obtained from detailed studies are presented.

Micellar interpolyelectrolyte complexes

“…A detailed description would be beyond the scope of this review, but recent trends in the synthesis of polyelectrolytes focus on the introduction of additional functionality to the materials (e.g., charges in combination with building blocks carrying hydrogen bonding motifs 11 ) or on the flexibility of the polymeric backbone. 12 Also, the controlled polymerization of monomers exhibiting multiple charges per repeating unit 13 or ionic liquid-based building blocks (poly(ionic liquids), PILs) as a new class of polyelectrolytes is currently being intensively investigated. 14,15 Other than cationic or anionic polyelectrolytes, polyampholytes contain both positive and negative charges, which can be randomly distributed or arranged blockwise along the polymeric backbone.…”

Poly(ionic liquid)s-based nanocomposite polyelectrolytes with tunable ionic conductivity prepared via SI-ATRP

“…Ion-conducting materials are important components in a variety of energy conversion devices, such as all-solid-state lithiummetal-polymer batteries, fuel cells, dye-sensitized solar cells, light-emitting electrochemical cells, and other electrochemical devices. 1,2 Poly(ionic liquid)s as one type of polymer electrolyte, which improve the stability of ionic liquids by tethering ion conducting groups to the polymer backbone, were found to play an enabling role in some elds of polymer chemistry and materials science. [3][4][5][6] Studies of poly(ionic liquid)s have been overwhelmingly concentrated on the introduction of polymerizable groups to the ionic liquid cations, where the common groups are acryloyl or vinyl.…”

Effects of repeat unit charge density on the physical and electrochemical properties of novel heterocationic poly(ionic liquid)s

“…3,[10][11][12][13][14][15][16][17]23,24 It should be noted that all of the aforementioned factors are interrelated and that it is their combination that governs the ionic conductivity of PILs. The structures of the most highly conductive PILs synthesized to date [25][26][27][28][29][30][31] are listed in Scheme 1; the maximum bulk ionic conductivity reported in a neat, well-purified linear PIL is 6.7 Â 10 À5 S cm À1 at 30 1C under anhydrous conditions. 31 Although attempts to enhance the ionic conductivity of PILs have been made by varying the anion and cation structures, the length of the spacer and the placement of the ions in the polymer backbone vs. in the side chain, the influence of repeat unit charge density on the bulk conductivity of PILs has been scarcely addressed.…”