Zhulina Ekaterina B, Borisov Oleg V
Institute of Macromolecular Compounds of the Russian Academy of Sciences, 199004 St. Petersburg, Russia.
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR 5254 CNRS UPPA, 64053 Pau, France.
Polymers (Basel). 2023 Jul 31;15(15):3261. doi: 10.3390/polym15153261.
We considered dispersions of cylindrical polyelectrolyte (PE) brushes with stiff backbones, and polymer-decorated nanorods with tunable solubility of the brush-forming PE chains that affected thermodynamic stability of the dispersions. We focused on thermo-induced and deionization-induced conformational transition that provokes loss of aggregative dispersion stability of nanorods decorated with weakly ionized polyions. A comparison between theoretical predictions and experiments enabled rationalization and semi-quantitative interpretation of the experimental results.
我们研究了具有刚性主链的圆柱形聚电解质（PE）刷的分散体，以及聚合物修饰的纳米棒，其中形成刷状的PE链的溶解度可调，这会影响分散体的热力学稳定性。我们重点关注热诱导和去离子化诱导的构象转变，这种转变会导致用弱电离聚离子修饰的纳米棒的聚集分散稳定性丧失。理论预测与实验之间的比较使得能够对实验结果进行合理化和半定量解释。
