prov:value
| - The polymerization reactivity of many of the acetylenic diureas in the complexes of the present invention may be increased or decreased by dissolving two or more of the compounds in a heated common solvent such as an organic acid, illustrative of which are acetic acid, propionic acid, butanoic acid, and the like; alcohols, ethoxyethanols, 2,6-lutidine, chlorobenzene, pyridine, and the like.
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