Chemical synthesis of polyphenylene in an ionic liquid: the possibility of relative molecular mass regulation

Abstract

An ionic liquid based on aluminum chloride and butylpyridinium chloride has been used as the solvent for the chemical synthesis of poly(p-phenylene).A large number of publications have been devoted to the synthesis and investigation of poly(p-phenylene) (PpP) (see, for example, recent reviews1.2).Ionic liquids are convenient electrolytes for electrochemical synthesis.3 In the present work such a liquid was first used for the oxidative dehydropolycondensation of benzene.The synthesis of BunPyC1 and the ionic liquid was performed according to the procedure described in ref. 4 The mole ratio was AlC13 : BunPyCl = 2 : 1. The CuC12 concentration in all experiments was constant and equal to the concentration of the saturated solution at room temperature.A typical procedure for PpP synthesis was as follows. To 2

Atom-Transfer Radical Polymerization of Acrylates in an Ionic Liquid

“…The systems studied include the polymerization of ethylene with a Ziegler-Natta catalyst [3,4] as well as the application of ionic liquids as polymerization media for the synthesis of polyphenylene. [5] The polymerization of styrene in an ionic liquid leading to conducting ionic liquid-polymer alloys was also reported. [6] Recently, the application of an ionic liquid as the solvent for radical polymerization was described.…”

Effects of Ionic Liquid [Me3NC2H4OH]+[ZnCl3]− on γ‐Radiation Polymerization of Methyl Methacrylate in Ethanol and N,N‐Dimethylformamide

“…[1,2] Recently, intensive studies have been reported on various types of polymerization in RTILs, [3] such as radical polymerization, [4][5][6][7][8][9][10][11][12][13] ionic polymerization, [14,15] among them controlled/living radical polymerization including atom transfer radical polymerization (ATRP), [5][6][7][8] reversal atom transfer radical polymerization (r-ATRP), [9] reversible addition-fragmentation chain transfer (RAFT) [10,11] and nitroxide-mediated polymerization (NMP). [12,13] In controlled/living polymerization, researchers observed not only a narrow polydisperse product but also a significantly enhanced polymerization rate.…”

Enzymatic Synthesis of Polyesters in Ionic Liquids

“…[1][2][3][4] A variety of structure and function of ionic liquids will control activity, selectivity and stability of catalysis in their use as solvent, yielding production of useful and functional materials. As for polymerizations in ionic liquids, olefin polymerization, 5 oxidative polymerization of benzene to poly(p-phenylene), 6 and copper (I)-mediated living radical polymerization of methyl methacrylate 7 were reported.…”