1,1,1-Trichloro-3-bromo-3-phenylpropane as a photoinitiator in the polymerization of styrene

✍ Scribed by C.A. Barson; R.A. Batten; J.C. Robb

• Book ID: 103074496
• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 325 KB
• Volume: 11
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(75)90019-1

✦ Synopsis

The photoinitiated reaction between styrene and l,l.l-trichloro-3-bromo-3-phenylpropane at 30 :' has been studied. The latter compound undergoes transfer with polystyryl radicals less readily than styrene dibromide and much less readily than bromotrichloromethane. The kinetic behaviour is consistent with a scheme involving primary radical termination, which would be enhanced bx the regeneration of primary radicals in the transfer step. An alternative explanation invokes the participation of monomer in a rate-controlling initiation reaction with primary radicals which have escaped from their solvent cages. Rate constants for the individual steps are quoted.