Reorientational dynamics and intermolecular cooperativity of reactive systems

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

Abstract

An investigation was conducted of the effects of the advancement of chemical reactions and the prepolymer molecular weight on the reorientational dynamics and intermolecular cooperativity in reactive epoxy-amine systems. Experimental results were obtained by dielectric spectroscopy over a wide range of frequency (1 mHz to 1 GHz) and temperature (-170 to +200°C). A strong effect of the progress of reaction on reorientational dynamics was noted and, for the first time, an explanation was put forward within the framework of the coupling theory. It was proposed that the molecular-level characteristics of a reactive system that affect its intermolecular cooperativity can be classified into two categories: 1) molecular architecture - determined by molecular symmetry, rigidity and steric hindrance, and 2) dielectric architecture - determined by the type and concentration of all dielectrically active species.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsW.J. Gray, I.R. Triay
PublisherMaterials Research Society
Pages195-200
Number of pages6
Volume455
StatePublished - 1997
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 2 1996Dec 6 1996

Other

OtherProceedings of the 1996 MRS Fall Meeting
CityBoston, MA, USA
Period12/2/9612/6/96

Fingerprint

Dielectric spectroscopy
Rigidity
Amines
Chemical reactions
Molecular weight
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Mijovic, J. (1997). Reorientational dynamics and intermolecular cooperativity of reactive systems. In W. J. Gray, & I. R. Triay (Eds.), Materials Research Society Symposium - Proceedings (Vol. 455, pp. 195-200). Materials Research Society.

Reorientational dynamics and intermolecular cooperativity of reactive systems. / Mijovic, Jovan.

Materials Research Society Symposium - Proceedings. ed. / W.J. Gray; I.R. Triay. Vol. 455 Materials Research Society, 1997. p. 195-200.

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

Mijovic, J 1997, Reorientational dynamics and intermolecular cooperativity of reactive systems. in WJ Gray & IR Triay (eds), Materials Research Society Symposium - Proceedings. vol. 455, Materials Research Society, pp. 195-200, Proceedings of the 1996 MRS Fall Meeting, Boston, MA, USA, 12/2/96.
Mijovic J. Reorientational dynamics and intermolecular cooperativity of reactive systems. In Gray WJ, Triay IR, editors, Materials Research Society Symposium - Proceedings. Vol. 455. Materials Research Society. 1997. p. 195-200
Mijovic, Jovan. / Reorientational dynamics and intermolecular cooperativity of reactive systems. Materials Research Society Symposium - Proceedings. editor / W.J. Gray ; I.R. Triay. Vol. 455 Materials Research Society, 1997. pp. 195-200
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