Bulk polymerization of styrene catalyzed by bi‐ and trifunctional cyclic initiators |
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| Authors: | Guojun Xu Jianhong Qiao Christiana Kuswanti Kurt Koelling Julie Ann Stuart Blaine Lilly |
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| Affiliation: | 1. Departamento de Química de Polímeros, Centro de Investigación en Química Aplicada, Boulevard Enrique Reyna #140, Apdo Postal 379, 25100 Saltillo, Coahuila, México;2. Departamento de Ingeniería de la U.N.C.P.B.A., Avenue Del Valle 5737, 7400 Olavarría, Provincia de Buenos Aires, Argentina |
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| Abstract: | A study of the bulk free‐radical polymerization of styrene in the presence of the cyclic bi‐ and trifunctional initiators cyclohexanone triperoxide, diethylketone triperoxide, acetone triperoxide, cyclohexanone diperoxide, and pinacolone diperoxide is reported. When these multifunctional initiators are used for styrene polymerization at high temperatures, it is possible to produce polymers with high molecular weights and narrow polydispersities at a high reaction rate. Additionally, the former initiators are used in a mixture that shows that the molecular parameters are influenced by the initiator concentration in the initiation system, in addition to the system employed. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1–11, 2002 |
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| Keywords: | styrene polymerization cyclic peroxide initiators bifunctional or trifunctional initiators |
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