Intermolecular and Surface Forces - Jacob N. Israelachvili

Intermolecular and Surface Forces (eBook)

Jacob N. Israelachvili (Autor)

eBook Download: PDF | EPUB

2011 | 3. Auflage
704 Seiten
Elsevier Science (Verlag)
978-0-12-391933-5 (ISBN)

Intermolecular and Surface Forces describes the role of various intermolecular and interparticle forces in determining the properties of simple systems such as gases, liquids and solids, with a special focus on more complex colloidal, polymeric and biological systems. The book provides a thorough foundation in theories and concepts of intermolecular forces, allowing researchers and students to recognize which forces are important in any particular system, as well as how to control these forces. This third edition is expanded into three sections and contains five new chapters over the previous edition.

Starts from the basics and builds up to more complex systems
Covers all aspects of intermolecular and interparticle forces both at the fundamental and applied levels
Multidisciplinary approach: bringing together and unifying phenomena from different fields
This new edition has an expanded Part III and new chapters on non-equilibrium (dynamic) interactions, and tribology (friction forces)

Intermolecular and Surface Forces describes the role of various intermolecular and interparticle forces in determining the properties of simple systems such as gases, liquids and solids, with a special focus on more complex colloidal, polymeric and biological systems. The book provides a thorough foundation in theories and concepts of intermolecular forces, allowing researchers and students to recognize which forces are important in any particular system, as well as how to control these forces. This third edition is expanded into three sections and contains five new chapters over the previous edition. Starts from the basics and builds up to more complex systems Covers all aspects of intermolecular and interparticle forces both at the fundamental and applied levels Multidisciplinary approach: bringing together and unifying phenomena from different fields This new edition has an expanded Part III and new chapters on non-equilibrium (dynamic) interactions, and tribology (friction forces)

Units, Symbols, Useful Quantities and Relations

Much of the published literature and equations on intermolecular and surface forces are based on the CGS system of units. In this book the Système International (SI) is used. In this system the basic units are the kilogram (kg) for mass, the meter (m) for length, the second (s) for time, the kelvin (K) for temperature, the ampére (A) for electrical quantities, and the mole (mol) for quantity of mass. Some old units such as gramme (1 gm = 1 g = 10 −3 kg) , centimeter (1 cm = 10 −2 m), ångstrom (1 Å = 10 −10 m) and degree centigrade (°C) are still commonly used, although they are not part of the SI system. The SI system has many advantages over the CGS, not least when it comes to forces. For example, force is expressed in newtons (N) without reference to the acceleration due to the earth's gravitation, which is implicit in some formulae based on the CGS system. Note that units, prefixes, words, and abbreviations are usually unitalicized—that is, in text format (e.g., J, K, m, N, volts V), whereas variables are italicized (e.g., stiffness K, mass m, number N, maximum number Nmax, velocity or volume V).

Derived SI Units

Quantity	SI Unit	Symbol	Definition of Unit

Energy

Joule

kg m 2 s −2 (also Nm and CV)

Force

Newton

J m −1 = kg m s −2

Power

Watt

J s −1 = kg m 2 s −3

Pressure

Pascal

N m −2

Electric charge

Coulomb

A s

Electric potential

Volt

J A −1 s −1 = J C −1

Electric field

Volt/meter

V m −1

Frequency

Hertz

s −1

Fraction

10 12

10 9

10 6

10 3

10 −1

10 −2

10 −3

10 −6

10 −9

10 −12

10 −15

10 −21

Prefix symbol

Definitions of Terms and Symbols Used in the Text

a	Atomic or molecular radius (m), surfactant headgroup area (m 2)

a, b	Constants in equations of state

a0	Bohr radius, atomic unit (a.u.) of length 0.053 nm, optimum headgroup area (m 2)

A, Aijk

Hamaker constant for media i and k interacting across medium j (J), area (m 2), Helmholtz free energy

c, C

Interaction constant (J m 6), aqueous solute concentration in mole fraction units (mol dm −3/55.5 or M/55.5), concentration number density (m −3), volume fraction

d	Distance, diameter (m)

D	Distance between two surfaces (m)

Da	Dalton unit of molecular weight (same as MW)

E	Electric field strength (V m −1), energy (J, eV, erg)

F	Force (N) or, when between two planar surfaces, force per unit area (N m −2)

G	Gibbs free energy

h, H

Height (m), enthalpy, hardness (Pa), hour (also hr)

I	Ionization potential (J)

ka	Area compressibility modulus (J m −2 or N m −1)

kb	Bending or curvature modulus (J)

k, K

Elastic modulus (N m −2), spring constant or stiffness (N m −1)

Ka	Reaction constant, association constant (M −1)

Kd	Dissociation constant ( Kd = 1/ Ka)

l, ℓ

Length (m), unit segment length in polymer chain (m)

lP	Persistence length of worm-like chain polymer (m)

lc	Critical hydrocarbon chain length (m)

L	Latent heat (J mol −1), thickness of polymer brush layer (m)

m, M

Mass (kg), molarity, molar mass, molecular weight (also MW), mean aggregation number

M	Concentration (mol dm −3, 10 3 mol m −3, moles/liter)

M W, M, MW

Molecular weight, molar mass (g mol −1), atomic mass (g), mass of atom or molecule × N o, mass of atom or molecule/mass of of 12C atom, Da (if not specified, e.g., PEO 1,000, assume Da)

n, N

Refractive index; number of atoms, molecules, moles, bonds, segments in a polymer chain, micelle aggregation number

p, P

Pressure (N m −2)

PL, PY

Laplace pressure, yield stress (Pa)

pK	−log 10[concentration or activity of H + ions in M]

Q, q

Charge (C)

r, R

Radius (m) , interatomic distance (m), atomic or molecular radius (m)

rK	Kelvin radius (m)

Rg, RF

Radius of gyration of polymer (m), Flory radius of polymer (m)

s	Mean distance between polymer anchoring sites (m)

S	Entropy, solubility

Time (s)

T	Temperature (K)

TM, TB

Melting or boiling points (K or °C)

Tc, Tm

Lipid chain melting temperature

u	Dipole moment (C m)

U	Molar cohesive energy (J mol −1), internal energy (J mol −1)

v, V

Volume (m 3), velocity or speed (m s −1), molar volume (m 3)

w, W, W0

Interaction free energy, pair potential (J). Between two planar surfaces: Work of adhesion, cohesion or interaction free energy per unit area (J m −2)

x, y, z

Position along the x-, y- or z- axis, arbitrary variables

Time derivative of variable x, for example, velocity = d x/d t (m s −1)

Acceleration, = d 2x/d t2 (m s −2)

X	Dimensionless concentration (e.g., mole fraction)

Y	Young's modulus (N m −2)

Valency

α	Polarizability (C 2 m 2 J −1), interaction energy parameter (J or J m −1)

γ	Surface tension (N m −1), surface energy (J m −2), tanh( eψ0/4 kT) → tanh[ ψ0(mV)/103] at 298 K

γi, γAB

Interfacial energy (J m −2)

Γ	Surface coverage, surface density, 2D density (number per m 2)

δ	Stern layer thickness (m), elastically or plastically deformed distance (m)

ɛ( ν)

Dielectric permittivity at frequency ν

ɛ	Relative permittivity, static dielectric constant at zero frequency ɛ(0), strain

∈	Energy (J or J m −1)

θ, ϕ, ψ, α

Angle (deg or rad), contact angle (deg)

θ	Theta temperature of solvent (°C, K)

κ	Inverse Debye length (m −1)

λ, λo, λ0

Characteristic exponential decay length, wavelength (m), line tension (N)

ξ	Correlation length (m)

μ	Chemical potential, coefficient of friction (COF)

μi, μo

Standard part of chemical potential due to molecular interactions

ν, νI

Frequency (s −1 or Hz), ionization frequency (s −1)

ρ	Number density (m −3) or mass density (kg m −3)

σ	Atomic or molecular diameter (m), surface charge...

Erscheint lt. Verlag	22.7.2011
Sprache	englisch
Themenwelt	Medizin / Pharmazie
	Naturwissenschaften ► Biologie ► Genetik / Molekularbiologie
	Naturwissenschaften ► Chemie ► Physikalische Chemie
	Naturwissenschaften ► Chemie ► Technische Chemie
	Naturwissenschaften ► Physik / Astronomie ► Angewandte Physik
	Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
	Technik ► Maschinenbau
	Technik ► Medizintechnik
ISBN-10	0-12-391933-9 / 0123919339
ISBN-13	978-0-12-391933-5 / 9780123919335

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