Raman scattering study of 'polyaminopropylsiloxane' aggregates and conformational change of aminopropylsilyl segments

Citation
T. Ogasawara et al., Raman scattering study of 'polyaminopropylsiloxane' aggregates and conformational change of aminopropylsilyl segments, COLL SURF A, 168(2), 2000, pp. 147-158
Citations number
34
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
168
Issue
2
Year of publication
2000
Pages
147 - 158
Database
ISI
SICI code
0927-7757(20000810)168:2<147:RSSO'A>2.0.ZU;2-H
Abstract
The Raman spectra of polyaminopropylsilane in the solid and gel phases and in aqueous solution have been examined in detail. It has been confirmed tha t a conformational change of the aminopropyl segments occurs, which depends on both concentration and pH, and that there is preferential stabilization of the bent or cyclic structures of the aminopropyl segments resulting fro m the NH2 --> +NH3 conversion at lower concentration and lower pH values. ( C) 2000 Elsevier Science B.V. All rights reserved.