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Quantification of the Reactivity of 3‐Aminopropyl‐triethoxysilane Monolayers with the Quartz‐Crystal Microbalance
Author(s) -
Kurth Dirk G.,
Bein Thomas
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199203361
Subject(s) - quartz crystal microbalance , monolayer , triethoxysilane , adsorption , surface modification , reactivity (psychology) , chemistry , substrate (aquarium) , quartz , salt (chemistry) , self assembled monolayer , chemical engineering , inorganic chemistry , materials science , organic chemistry , medicine , alternative medicine , pathology , engineering , composite material , biochemistry , oceanography , geology
The formation and functionalization of monolayers can be studied by means of a quartzcrystal microbalance. This method was used along with ellipsometric and IR‐spectroscopic investigations to prove that a monolayer forms on adsorption of 3‐aminopropyl‐trimethoxysilane (APS) on an aluminum oxide substrate. This surface‐bound APS reacts with gaseous chlorodimethylsilane quantitatively to form an immobilized dimethylsilylammonium salt.