Recent Results on the Kinetics and Elementary Steps of Polyreactions

Abere, J.; Goldfinger, George; Mark, Howard; Naidus, H.

doi:10.1111/j.1749-6632.1943.tb52756.x

Cited by 14 publications

(2 citation statements)

References 57 publications

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“…The intrinsic viscosities of all other samples were then calculated by solution of the quadratic equation obtained by substituting one measured value in Equation 1. Suitable values of the constants K and a in Equation 2were obtained from the literature (1,6), and the molecular weights calculated are also shown in Table III. The pH readings obtained at intervals throughout each run were converted to hydrogen ion concentrations, and the particle size data were converted into a mass fraction analysis for each sample of polymer product.…”

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Suspension Polymerization of Styrene

Kaghan¹,

Shreve²

1953

Ind. Eng. Chem.

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confidence: 99%

“…Several authors have studied the decomposition of benzoyl peroxide in various solvents (3,3,14) and examined the decom- 1 Present address, Olin Industries, Inc., New Haven, Conn position products. In general, these consist of carbon dioxide, benzene, aldehydes, and solid acids containing mostly benzoic acid.…”

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Suspension Polymerization of Styrene

Kaghan¹,

Shreve²

1953

Ind. Eng. Chem.

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Intramolecular reactions in vinyl polymers as a means of investigation of the propagation step

Merz

Alfrey²,

Goldfinger³

1946

J. Polym. Sci.

264

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The Flory‐Wall expressions for the fraction of substituents remaining on a vinyl copolymer, when substituents are removed at random from adjacent 1,3 positions, are extended to the case of nonrandom copolymerization. A copolymer composition equation is derived for the case in which the type of monomer preceding the active freeradical chain end affects the propagation reaction. The distribution of lengths of sequences in copolymers is discussed.

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Polymerization of olefins and diolefins in suspension and emulsion. Part I.

Hohenstein¹,

Mark²

1946

J. Polym. Sci.

117

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on polymerization of olefins and diolefins in suspension and emulsion, and present a number of new measurements not published to date. The subject is considered mainly from the point of view of scientific information on the mechanism of polymerization in aqueous suspensions and emulsions, but brief mention is also made of the more important disclosures in the patent literature. The new data presented in this article refer to (1) initial rates of polymerization of styrene, methyl methacrylate, vinyl acetate and acrylonitrile in aqueous suspensions and in soap emulsions as a function of catalyst concentration, temperature, and soap concentration; (2) influence of water-soluble activators, such as sodium bisulfite; (3) influence of initial size of monomer droplets on initial rates of monomer consumption; (4) study, with the aid of the electron microscope, of size of monomer droplets and polymer particles throughout polymerization; and ( 5 ) a few experiments on side reactions in the domain of higher conversions. No attempt is made in this paper to review and appraise the very large number of recent patents (from about 1930 on), which protect special procedures on the use of various promoting, regulating, or modifying ingredients. A complete digest of this practice does not exist at present, but reference may be made to the excellent chapter on emulsion polymerization in the book of Talalay and Magat (55), to the very valuable compilation of patents by Hoseh in "India Rubber World" (27), and to the enumeration of a selected number of patents in the book of Scheiber (50) on pages 210-213.

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Recent Results on the Kinetics and Elementary Steps of Polyreactions

Cited by 14 publications

References 57 publications

Suspension Polymerization of Styrene

Suspension Polymerization of Styrene

Intramolecular reactions in vinyl polymers as a means of investigation of the propagation step

Polymerization of olefins and diolefins in suspension and emulsion. Part I.

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