In:
Chinese Journal of Chemical Physics, AIP Publishing, Vol. 21, No. 3 ( 2008-06-01), p. 291-294
Abstract:
The effect of salt concentration on layer-by-layer deposition of poly(sodium 4-styrene sulfonate) (PSSS)/poly(vinylbenzyl trimethylammonium chloride) (PVTC) was investigated by use of quartz crystal microbalance with dissipation (QCM-D). The changes in frequency and dissipation demonstrate that the addition of NaCl leads the thickness of PSSS/PVTC multilayer to increase. The deposition of PSSS/PVTC is dominated by surface charge overcompensation level at lower salt concentrations. However, it is mainly determined by the interpenetration of polyelectrolytes at a higher salt concentration, as reflected in the oscillation of dissipation change.
Type of Medium:
Online Resource
ISSN:
1674-0068
,
2327-2244
DOI:
10.1088/1674-0068/21/03/291-294
Language:
English
Publisher:
AIP Publishing
Publication Date:
2008
detail.hit.zdb_id:
2381472-X
SSG:
6,25
