TY - JOUR
T1 - Static deflection measurements of cantilever arrays reveal polymer film expansion and contraction
AU - Snow, David
AU - Weeks, Brandon L.
AU - Kim, Dae Jung
AU - Loui, Albert
AU - Hart, Bradley R.
AU - Hope-Weeks, Louisa J.
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2007/12/15
Y1 - 2007/12/15
N2 - An optical static method of detection is used to interpret surface stress induced bending related to cantilevers coated on one side with poly(vinyl alcohol), poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate), and poly(vinyl chloride-co-vinyl acetate-co-2-hydroxypropyl acrylate), or respectively, PVA, PVB, and PVC, and exposed to various solvent vapors. Results indicate that the adsorption and surface interactions of the different solvent vapors that cause polymer swelling and shrinking lead to rearrangements, which have been shown to change the elastic properties of the polymer film, and subsequently, the spring constant of the polymer coated cantilever. Static deflection measurements allow the direction of cantilever bending to be determined, which adds a new dimension of usefulness for surface functionalized cantilevers as transducers in the development of novel microelectromechanical systems (MEMS).
AB - An optical static method of detection is used to interpret surface stress induced bending related to cantilevers coated on one side with poly(vinyl alcohol), poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate), and poly(vinyl chloride-co-vinyl acetate-co-2-hydroxypropyl acrylate), or respectively, PVA, PVB, and PVC, and exposed to various solvent vapors. Results indicate that the adsorption and surface interactions of the different solvent vapors that cause polymer swelling and shrinking lead to rearrangements, which have been shown to change the elastic properties of the polymer film, and subsequently, the spring constant of the polymer coated cantilever. Static deflection measurements allow the direction of cantilever bending to be determined, which adds a new dimension of usefulness for surface functionalized cantilevers as transducers in the development of novel microelectromechanical systems (MEMS).
KW - Cantilever
KW - Frenkel-Flory-Rehner
KW - MEMS
KW - Polymer elasticity
KW - Spring constant
KW - Surface stress
UR - http://www.scopus.com/inward/record.url?scp=35648937536&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2007.08.050
DO - 10.1016/j.jcis.2007.08.050
M3 - Article
C2 - 17904571
AN - SCOPUS:35648937536
VL - 316
SP - 687
EP - 693
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
SN - 0021-9797
IS - 2
ER -