| http://www.w3.org/ns/prov#value | - Other suitable comonomers are vinylaromatics such as styrene, ??-methylstyrene, vinyltoluenes, ethylstyrene, 2 -chlorostyrene, 2,4-dichlorostyrene and vinylnaphthalene, vinyl esters such as vinyl acetate, vinyl propionate, the vinyl esters of carboxylic acids prepared by reaction of olefins with carbon monoxide and water in the presence of sulfuric acid (for example of trimethylacetic acid or of t
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