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W. Richard Bowen and Nidal Hilal 4

W. Richard Bowen and Nidal Hilal 4

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242 8. ATOMIC FORCE MICROSCOPy ANd POLyMERS ON SURFACES<br />

LISt oF ABBrEvIAtIonS<br />

AFM atomic force microscope<br />

FJC freely jointed chain<br />

PB polybutadiene<br />

PEO poly(ethylene oxide)<br />

PI polyisoprene<br />

PI-PEO poly(isoprene-b-ethylene oxide)<br />

PMAA poly(methacrylic acid)<br />

PMAA-SH thiol-terminated poly(methacrylic acid)<br />

PS polystyrene<br />

PS-SH thiol-terminated polystyrene<br />

–SH thiol<br />

LISt oF SymBoLS<br />

Unit<br />

b Kuhn statistical segment M<br />

D separation distance between the probe surface<br />

<strong>and</strong> the solid substrate surface<br />

M<br />

F force N<br />

k Boltzmann’s constant (1.38 � 10�23 ) J K�1 Lc contour length of a polymer chain (full length<br />

of a stretched polymer chain)<br />

M<br />

L0 polymer brush thickness M<br />

Mn number-average molecular weight g mol –1<br />

Mw weight-average molecular weight g mol –1<br />

R end-to-end polymer chain distance M<br />

T absolute temperature K<br />

X x-coordinate or abscissa<br />

Y y-coordinate or ordinate<br />

references<br />

[1] J.I.I. Laco, F.C. Villota, F.L. Mestres, Corrosion protection of carbon steel with thermoplastic<br />

coatings <strong>and</strong> alkyd resins containing polyaniline as conductive polymer, Prog.<br />

Org. Coat. 52 (2005) 151–160.

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