Anionic polymerization of styrene
1961; Elsevier BV; Volume: 2; Linguagem: Inglês
10.1016/0032-3861(61)90019-2
ISSN1873-2291
Autores Tópico(s)Luminescence and Fluorescent Materials
ResumoPolymerization of styrene initiated by sodium naphthalene in dioxane solution yields polymers with sharp molecular weight distributions and degrees of polymerization in agreement with Szwarc's mechanism. At complex concentrations of 10−3 mole l.−1 the half-life of the reaction is approximately 2 min at room temperature. The overall activation energy is approximately 9 kcal mole−1. The reaction rate is first order with respect to monomer and directly proportional to the concentration of complex. Anionic propagation appears to be the rate-controlling reaction.
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