Sulfinic acid derivatives as accelerators in the polymerization of methyl methacrylate

Autor:	F. R. Burns, G. M. Brauer
Rok vydání:	1956
Předmět:	chemistry.chemical_classification chemistry.chemical_compound chemistry Polymerization Polymer chemistry Organic chemistry Amine gas treating Ether Toluidine Polymer Methyl methacrylate Sulfinic acid Methylaniline
Zdroj:	Journal of Polymer Science. 19:311-321
ISSN:	1542-6238 0022-3832
DOI:	10.1002/pol.1956.120199208
Popis:	A study was made of the efficiency of amine salts of p-toluenesulfinic acid as accelerators in the polymerization of methyl methacrylate. These compounds are readily synthesized by addition of amine to the ether solution of the sulfinic acid. Most of the salts are stable in air. Salts of secondary and tertiary aromatic amines, such as the methylaniline or dimethyl-p- toluidine salts, are very efficient accelerators in the benzoyl peroxide-initiated polymerization. However, colored products are formed. Aliphatic amine salts as well as the free acid give colorless polymers, but the setting time is increased considerably. Heterocyclic amines show reduced activity as polymerization accelerators. The setting times of monomer–polymer mixtures containing some of these accelerators have been determined. Physical properties of the polymers have been evaluated by measuring their resistance to indentation and recovery.
Databáze:	OpenAIRE
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