Spontaneous frontal polymerization: Propagating front spontaneously generated by locally autoaccelerated free-radical polymerization

Kouichi Asakura, Eisuke Nihei, Hirokazu Harasawa, Akihito Ikumo, Shuichi Osanai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Free-radical polymerization exhibits nonlinear phenomena, such as the Trommsdorff effect and thermal autocatalysis. A propagating front, an interface between reacted and unreacted zones, thus can be observed in the free-radical polymerization system. The frontal polymerization is usually started by attaching a mixture of monomer and initiator to an external heat source. In this chapter, we introduce that the propagating front can be generated at the center of the reaction system by the local accumulation of the heat of reaction. Polymerization of methyl methacrylate was carried out in a test tube in a thermostatic oil bath. Under optimum conditions, the front spontaneously generated at the center was propagated to complete the polymerization without forming bubbles. The phenomena might be an alternative to an interfacial gel polymerization for preparing functionally gradient materials.

Original languageEnglish
Title of host publicationNonlinear Dynamics in Polymeric Systems
EditorsJohn Pojman, Qui Tran-Cong-Miyata
Pages135-146
Number of pages12
Publication statusPublished - 2004 Dec 1

Publication series

NameACS Symposium Series
Volume869
ISSN (Print)0097-6156

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Asakura, K., Nihei, E., Harasawa, H., Ikumo, A., & Osanai, S. (2004). Spontaneous frontal polymerization: Propagating front spontaneously generated by locally autoaccelerated free-radical polymerization. In J. Pojman, & Q. Tran-Cong-Miyata (Eds.), Nonlinear Dynamics in Polymeric Systems (pp. 135-146). (ACS Symposium Series; Vol. 869).