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A study of PVDF Langmuir‐Blodgett thin film using quartz crystal microbalance
Author(s) -
Ying Zhihua,
Jiang Yadong,
Du Xiaosong,
Xie Guangzhong,
Yang Yajie
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26731
Subject(s) - quartz crystal microbalance , langmuir–blodgett film , monolayer , materials science , thin film , quartz , substrate (aquarium) , dimethyl methylphosphonate , chemical engineering , contact angle , langmuir , crystal (programming language) , deposition (geology) , chemical vapor deposition , analytical chemistry (journal) , adsorption , composite material , chemistry , organic chemistry , nanotechnology , paleontology , oceanography , sediment , geology , biology , computer science , engineering , programming language
Poly(vinylidene fluoride) (PVDF) was deposited onto a quartz crystal microbalance (QCM), using a standard Langmuir–Blodgett (LB) thin film deposition procedure. QCM technique was used to monitor the reproducibility of the LB film monolayer, and the fabricated QCM sensor was employed to detect the dimethyl methyl phosphonate (DMMP) vapor, a simulant of nerve agents. The results show that PVDF was successfully deposited from the water surface onto the quartz crystal substrate. The PVDF LB film is found to be highly sensitive to DMMP vapor, and frequency shifts are linear to the concentrations. The response of the sensor against DMMP is fast, large, and reversible. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007