Preparation and structure of chlorinated and brominated derivatives of polyphenylacetylene

✍ Scribed by Franco Cataldo

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 435 KB
• Volume: 28
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(92)90141-n

✦ Synopsis

The preparations of chlorinated and brominated polyphenylacetylene are reported. Elemental analyses show 28.9% chlorine and 25.4% bromine in the halogenated derivatives. The structures of the halogenated polymers have been studied by u.v., i.r: and H-NMR. The reactions of halogens with conjugated double bonds follow mainly the conjugated addition route; it has been found that some double bonds remain unreacted and isolated between halogenated units. The final halogenated polyphenylacetylene can be regarded as a random copolymer, poly(1,2 dichloro-(or dibromo)-styrene)-copoly(phenylacetylene).