| 摘要 |
Copolymers of vinylidene cyanide with acenaphthylene are made by polymerizing a mixture of the monomers in the presence of a polymerization catalyst. The polymerization may be effected in the presence of an inert diluent, or a solvent for the cyanide, or in bulk, and further quantities of one or both of the monomers and/or catalyst, and/or diluent, may be added. Diluents mentioned are hexane and heptane and as solvents toluene, xylene, chlorobenzene and nitrobenzene, may be used. The catalyst may be benzoyl, caproyl, lauroyl, acetone, acetyl benzoyl, o,o1-dichlorobenzoyl, caprylyl, pelargonyl or tetrahydronaphthalene peroxide, or t-butyl hydroperoxide. The copolymers may be moulded or formed into sheets, films, or rods. Specifications 653,468, 667,276 and 673,722, [both in Group IV (b)], are referred to.
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