Polymerization of Epoxy Resins Studied by Positron Annihilation

• Authors: T. Suzuki , T. Hayashi , Y. Ito
• Languages of publication: EN

Abstracts

EN

The polymerization process of epoxy resins (bisphenol-A dicyanate) was studied using positron-annihilation lifetime spectroscopy. The polymerization from monomer to polymer through a polymerization reaction was followed by positron-annihilation lifetime spectroscopy measurements. Resins kept at curing temperatures (120, 150, and 200°C) changed form from a powder to a solid through a liquid. The size of the intermolecular spaces of the solid samples increased along with the progress of polymerization.

Keywords

EN

78.70.Bj; 83.80.Cq

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 95
• Issue: 4
• Pages: 671-676

Dates

published

1999-04

Contributors

author

T. Suzuki

• High Energy Accelerator Research Organization, Tskuba, Ibaraki, 305-0801, Japan

author

T. Hayashi

• Fine Chemicals Research Laboratory, Sumitomo Chemical, Tskuba, 300-32, Japan

author

Y. Ito

• RCNS, University of Tokyo, Tokai, Ibaraki 319-1106, Japan

Identifiers

DOI

10.12693/APhysPolA.95.671