KANG Qi, GAO Bao-yu, ZHOU Wei-zhi, et al. Monitor of interaction between nanoparticles and polyelectrolyte by piezoelectric sensor[J]. 2006, (5): 70-72.
KANG Qi, GAO Bao-yu, ZHOU Wei-zhi, et al. Monitor of interaction between nanoparticles and polyelectrolyte by piezoelectric sensor[J]. 2006, (5): 70-72. DOI: 10.13873/j.1000-97872006.05.023.
纳米粒子与聚电解质相互作用的压电传感检测
摘要
石英表面先吸附阳离子聚电解质均聚二甲基二烯丙基氯化铵(PDADMAC)
利用压电式传感器实时监测纳米S iO2粒子在PDADMAC膜表面吸附过程中的质量变化
获得吸附速率常数
并讨论吸附可逆性和盐浓度的影响。
Abstract
Cationic polyelectrolyte polydiallyldimethylammonium chloride(PDADMAC) is adsorbed on the quartz surface.The adsorption mass of SiO
2
nanoparticles on pre-adsorbed PDADMAC film is monitored real time by an electrode-separated piezoelectric sensor.The rate constants for adsorption are estimated.The reversibility of adsorption and the influence of salt concentration are tested.