抄録
Sum frequency generation (SFG) vibrational spectroscopy was employed to investigate the surface structures of polyelectrolyte multilayers (PEMs) constructed by sequentially alternating adsorption of poly(diallyldimethylammonium chloride) (PDDA) and poly(styrenesulfonate) (PSS). It was found that the surface structures and surface charge density of the as-deposited PEMs of PDDA/PSS significantly depend on the concentration of sodium chloride (NaCl) present in the polyelectrolyte solutions. Furthermore, it was found that the surface structure of the as-deposited PEMs is in a metastable state and will reach the equilibrium state by diffusion of the polyelectrolyte chain after an aging process, resulting in a polyelectrolyte mixture on the PEM surfaces.
本文言語 | English |
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ページ(範囲) | 3803-3810 |
ページ数 | 8 |
ジャーナル | Langmuir |
巻 | 32 |
号 | 16 |
DOI | |
出版ステータス | Published - 2016 5月 10 |
外部発表 | はい |
ASJC Scopus subject areas
- 材料科学(全般)
- 凝縮系物理学
- 表面および界面
- 分光学
- 電気化学