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Home  >  Journal list  >  Polymer Journal  >  Vol.27  No.6 (1995)  >  pp.651-654

Polymer Journal
<<Previous article Vol.27  No.6 (1995)   pp.651 - 654 Next article>>

Analysis of Microcapsule Resin Using the X-Ray Photoelectron Nitrogen 1s Spectral Method

Chiaki Inoue1), Naoya Kobayashi1), Mamoru Ishiguro1) and Kazunaka Endo1)
1) Tsukuba Research Laboratory, Mitsubishi Paper Mills, Ltd.

ABSTRACT:  X-Ray photoelectron N 1s spectra have been used to determine which material is involved in the microcapsule; melamine or non-melamine (gelatin, polyurea and polyurethane). The linewidth of the N 1s spectra of melamine-resin, 2.5 eV, is larger than that of non-melamine materials (polyurea (2.1 eV) and gelatin (1.9 eV)). This depends on the nitrogen functional groups: The melamine involves two functional groups, amino and triazine-ring nitrogens, while polyurea and gelatin have amino groups. The N 1s spectra of melamine-resin and polyurea were simulated by an ab initio MO method using the melamine and 1,3-dimethyl urea molecules, respectively.


Keyword:
Core XPS N 1s Spectra/ Analysis/ Ab Initio MO/ Microcapsule Material/ Melamine-Resin/ Polyurea/ Gelatin

Published online: April 02, 2005
© Copyright, 2005 by The Society of Polymer Science, Japan

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