Adsorption characteristics of polyvinylpyrrolidone at solid-liquid interface

1977 ◽  
Vol 255 (6) ◽  
pp. 556-559 ◽  
Author(s):  
L. Gargallo ◽  
E. Cid
Keyword(s):  
Liquid Interface ◽  
Adsorption Characteristics ◽  
Solid Liquid Interface ◽  
Solid Liquid

Characterization of the adsorption properties of a phosphorylated kraft lignin-based polymer at the solid/liquid interface by the QCM-D approach

Holzforschung ◽  
2016 ◽  
Vol 70 (10) ◽  
pp. 937-945 ◽  
Author(s):  
Wenlong Xiong ◽  
Xueqing Qiu ◽  
Ruisheng Zhong ◽  
Dongjie Yang
Keyword(s):  
Self Assembly ◽  
Uv Spectroscopy ◽  
Adsorbed Layer ◽  
Kraft Lignin ◽  
Liquid Interface ◽  
Inorganic Materials ◽  
Layer By Layer ◽  
Adsorption Characteristics ◽  
Solid Liquid Interface ◽  
Solid Liquid

Abstract Phosphorylated kraft lignin (PKL), a novel lignin polymer, has potential application in the preparation and modification of inorganic materials. In this article, the adsorption characteristics of PKL at the solid/liquid interface were investigated under different pH conditions. Quartz crystal microbalance combined with dissipation monitoring (QCM-D), UV spectroscopy, and atomic force microscopy (AFM) were applied for monitoring the adsorption. The adsorbed amount of PKL gradually decreased as a function of pH increment on the gold covered QCM-D crystals, which were pretreated with an adsorbed layer of poly(diallyldimethylammonium chloride) (PDAC). This was also the case for quartz slide substrates pretreated with PKL/PDAC multilayers by the method relying on the layer-by-layer (LBL) electrostatic self-assembly. The hydrophobicity of adsorbed PKL films increased with increasing pH from 3 to 12. In the course of this process, the adsorption morphology changed from a compact rigid state to a less compact soft state. Under acidic conditions, the adsorption is governed mainly by cation-π interaction between PKL and PDAC, and the adsorption configuration is mushroom-like. Under neutral and alkaline conditions, the cation-π interaction is less relevant owing to the longer distances between the anionic groups in PKL and the cation in PDAC. This causes stretching of the molecular chains in PKL, while the adsorption configuration changes to a planar pancake structure so that the electrostatic interaction dominates. The knowledge on adsorption characteristics of PKL at different pH values is helpful to prepare some lignin-based composite materials.

Observation of Femtosecond Acoustic Anomaly in a Solid Liquid Interface

2020 ◽  
Vol 124 (5) ◽  
pp. 2987-2993
Author(s):  
Chi-Kuang Sun ◽  
Yi-Ting Yao ◽  
Chih-Chiang Shen ◽  
Mu-Han Ho ◽  
Tien-Chang Lu ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Acoustic Anomaly ◽  
Solid Liquid Interface ◽  
Solid Liquid

An Organodiselenide Containing Electrolyte Enables Sulfurized Polyacrylonitrile Cathodes with Fast Redox Kinetics in Li-S batteries

2021 ◽  
Author(s):  
Wei Zhang ◽  
Qiang Wu ◽  
Ziqi Zeng ◽  
Chuang Yu ◽  
Shijie Cheng ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Electrolyte Additive ◽  
Redox Kinetics ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Kinetics Of

A soluble organoselenide compound, phenyl diselenide (PDSe), is employed as a soluble electrolyte additive to enhance the kinetics of sulfurized polyacrylonitrile cathode, in which radical exchange in the solid-liquid interface...

Sign in / Sign up

Export Citation Format

Share Document