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 publicationACS Symposium Series
Pages135-146
Number of pages12
Volume869
Publication statusPublished - 2004

Publication series

NameACS Symposium Series
Volume869
ISSN (Print)00976156

Fingerprint

Free radical polymerization
Polymerization
Methacrylates
Oils
Monomers
Gels
Hot Temperature

ASJC Scopus subject areas

  • Chemistry(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 ACS Symposium Series (Vol. 869, pp. 135-146). (ACS Symposium Series; Vol. 869).

Spontaneous frontal polymerization : Propagating front spontaneously generated by locally autoaccelerated free-radical polymerization. / Asakura, Kouichi; Nihei, Eisuke; Harasawa, Hirokazu; Ikumo, Akihito; Osanai, Shuichi.

ACS Symposium Series. Vol. 869 2004. p. 135-146 (ACS Symposium Series; Vol. 869).

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

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 ACS Symposium Series. vol. 869, ACS Symposium Series, vol. 869, pp. 135-146.
Asakura K, Nihei E, Harasawa H, Ikumo A, Osanai S. Spontaneous frontal polymerization: Propagating front spontaneously generated by locally autoaccelerated free-radical polymerization. In ACS Symposium Series. Vol. 869. 2004. p. 135-146. (ACS Symposium Series).
Asakura, Kouichi ; Nihei, Eisuke ; Harasawa, Hirokazu ; Ikumo, Akihito ; Osanai, Shuichi. / Spontaneous frontal polymerization : Propagating front spontaneously generated by locally autoaccelerated free-radical polymerization. ACS Symposium Series. Vol. 869 2004. pp. 135-146 (ACS Symposium Series).
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