The relative inhibitory effect of various compounds on the rate of polymerization of vinyl acetate. II. Effect of conjugated and unconjugated acetylenes and olefins

The relative inhibitory effects of hexene-1, hexyne-1, trans-hexene-2, cis-hexene-2, hexyne-2, 1,5-hexadiene, 1,5-hexadiyne, 1,7-octadiyne, 1,8-octadiyne, 1-hexen-5-yne, 4-chloro-1,2-butadiene, chloroprene, 2,5-dimethyl-2,4-hexadiene, 2,4-hexadiyne, 2-methyl-1-buten-3-yne, styrene, ethynylbenzene, hydroquinone, and p-methoxyphenol on the bulk polymerization of vinyl acetate were measured. Polymerization was carried out at 70°C. in a test tube in the presence of benzoyl peroxide. A comparison was made of the magnitude of the inhibitory effect due to isolated and conjugated, double and triple bonds as well as cumulative double bonds. A brief comparison between aliphatic and aromatic compounds was also made.