Terpolymerization of styrene‐methyl methacrylate‐acrylonitrile in presence of Et_1.5AlCl_1.5

Mechanism of alternating copolymerization of acrylic monomers with donor monomers in the presence of lewis acid

“…Under UV irradiation, the polymerization rate is increased but the terpolymer composition is essentially the same as that obtained in the dark reaction, irrespective of the temperature change (Gaylord and Patnaik, 1972). On the other hand, the A1Etl.~C11.5-acrylonitrile-styrene system yields a radical copolymer rather than an equimolar alternating copolymer at temperatures above 50°C .…”

“…St] ternary molecular complexes are aligned in the same array or matrix of complexes, preventing the dissociation of [AlEt1.5C11.5(AN) --St] complex to uncomplexed monomers on the elevation of temperature (Gaylord and Patnaik, 1972). In addition, it is presumed that the relative amounts of [AlEt1.5Cll.5-(MMA).…”

Donor-Acceptor Complexes in Copolymerization. XXVI. Effect of Solvent, Temperature, and Complexing Agent on the Polymerization of Comonomer Charge Transfer Complexes

“…. EASC polymerization at 70°C [12]. Room temperature was found to be the optimum temperature in the copolymerization of cyclopentene with acrylonitrile or methyl acrylate in the presence of EASC [26].…”

“…However, when the AN/EASC ratio is increased to 100, the copolymer has the composition expected from free radical propagation [12].…”

The effect of zinc chloride on the copolymerization of acrylic acid and acrylamide

“…Many examples reported include alkene or diene monomers copolymerized with polar vinyl monomers such as acrylonitrile, acrylates or vinyl ethers (7)(8)(9). The steps can be represented as:…”