Acrylonitrile In Presence Research Articles

The reaction of organo monohalides with polynuclear iron carbonyls in the presence of olefins

The reaction of benzyl chloride with mononuclear iron pentacarbonyl quantitatively gave hydrocarbon polymer, (CH 2C 6H 4) n , n ∼ 62, and the reaction of benzyl chloride or iodobenzene with polynuclear iron carbonyls gave the corresponding symmetrical ketones. The formation of benzyl(or phenyl-)iron carbonyl (σ-complex) is considered to precede ketone formation. The reaction of benzyl chloride with polynuclear iron carbonyls in the presence of acrylonitrile (or ethyl acrylate) produce 4-phenylbutyronitrite (yield 15.0%) (or ethyl 4-phenylbutyrate, 22.2%), 4-cyano-6-phenylhexanenitrile (yield 3.3%) (or diethyl 2-β-phenethylglutarate, 4.4%) and 4-phenylcrotononitrile (1.0%). The mechanisms of these reactions are discussed.

Effects of salts of metals on vinyl polymerization. Part 3.—Polymerization of acrylonitrile in presence of cupric chloride

The homogeneous polymerization of acrylonitrile initiated with 1,1′-azo-bis-isobutyronitrile and inhibited with cupric chloride in dimethylformamide solution has been studied at 60°C. The rate of polymerization following the inhibition period was invariably less than the rate obtained in the absence of cupric chloride, and varied inversely with the initial cupric chloride concentration for concentrations >3 × 10–3 M. The corrected value of the rate constant for the initiation reaction obtained from the inhibition against time plot was 1.51 × 10–5 sec–1. The plot of the final retarded rate of polymerization against the reciprocal of the initial cupric chloride concentration gave a corrected value of 5.7 for ky/kp where ky is the rate constant for the reaction between growing polymer radicals and the inhibition product (presumably cuprous chloride). The value of kx/kp, where kx is the rate constant for the reaction between polyacrylonitrile radicals and cupric chloride, was determined from the period of acceleration following complete inhibition, and had a mean value of 100 at 60°C. Using a value of 1930 l. mole–1 sec–1 for kp at 60°C we obtain values of 1.93 × 105 and 1.1 × 104 l. mole–1 sec–1 for kx and ky respectively. The value of kx is much greater than the corresponding value obtained with ferric chloride, and is approaching the order of magnitude of rate constants for radical-radical interactions as for methyl methacrylate polymerization.

Ceric ion induced redox polymerization of acrylonitrile in presence of cellulose

Ceric ion induced redox polymerization of acrylonitrile in presence of cellulose

Mechanism of the polymerization of acrylonitrile in presence of trib utylborine

Mechanism of the polymerization of acrylonitrile in presence of trib utylborine

Polymerization of acrylonitrile in presence of tributylborine

It was found that acrylonitrile polymerizes in presence of tributyiborine activated by the boron trifuloride ether complex.

Polarographic Determination of Acrylonitrile in Presence of Potassium Persulfate

Polarographic Determination of Acrylonitrile in Presence of Potassium Persulfate