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TitleLight Scattering from Polymer Solutions and Nanoparticle Dispersions
LanguageEnglish
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Total Pages200
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Page 2

Springer Laboratory

Page 100

5.1 Dynamic Light Scattering 89



Fig. 5.18. Oscillating amplitude correlation function measured by DLS at laser power
500 mW and scattering angle 70°, including a fit using the simplified convection picture
described in the text (top), and dependence of oscillation period on scattering angle
(bottom). Reprinted with permission from W. Schaertl and C. Roos, Physical Review E 60,
2020–2028, 1999, Copyright (1999) by the American Physical Society (ref. [5.11]).
http://prola.aps.org/abstract/PRE/v60/i2/p2020_1

Page 101

90 5 Selected Examples of Light Scattering Experiments



Fig. 5.19. Change in the scattering geometry due to the “thermal lens” effect (top), and
accordingly corrected dependence of the correlation function oscillation period on
scattering angle (see also Fig. 5.18, bottom). Reprinted with permission from W. Schaertl
and C. Roos, Physical Review E 60, 2020–2028, 1999, Copyright (1999) by the American
Physical Society (ref. [5.11]). http://prola.aps.org/abstract/PRE/v60/i2/p2020_1

Page 199

190 Index

fluctuation theory 6, 10
fractal dimension 13, 14, 99, 113, 142

gel permeation chromatography
combined with light scattering 135
coupled with light scattering 29

gold nanoparticles
rods 76
spheres 76, 86

goniometer setup 26

Guinier plot 120, 169

heterodyne scattering 92
Holtzer plot 132
homodyne scattering 86
hydrodynamic radius 18
hyperbranched macromolecules

64, 114

induced dipole, oscillator 1, 3
intensity autocorrelation function

18, 19
interference pattern

dynamic light scattering 2, 16
static light scattering 1

intraparticular scattering 1
inverse Laplace transform 58, 107,

118, 156

Kuhn length 14, 132, 136

laser 26
light absorption 76, 86

mean-square displacement 17
membrane filter 49, 178
micelles 21, 44, 80, 107, 130
molar mass, weight average 10
multi angle light scattering

setup 29
multi speckle correlation spectroscopy

setup 32
multiangle light scattering

application 135
multiple scattering 25, 33, 148, 156, 167
multispeckle correlation spectroscopy

application 163
setup 163

oscillating correlation functions 87, 91

particle form factor
cylinder 13
definition 1, 9
disk 12
hollow sphere 11
sphere 11

particle sizer 3, 39, 42
persistence length 68
pinhole detector 54
pinhole detectore 26
polarization factor 5

horizontally polarized light 5
unpolarized light 5
vertically polarized light 5

polydispersity 22, 39, 51, 118, 130
treatment in dynamic light scattering

21, 57
polyelectrolyte effect

added salt 45, 69
dynamic light scattering 45, 69
static light scattering 45

polyelectrolytes 44, 70
polymacromer bottle-brushes 135

radial density profile 146
radiation, interaction with matter 3
radius of gyration

definition 9, 13
negative value 45
z-average 10

Rayleigh ratio 7
Rayleigh scattering 6
refractive index increment 6, 44

apparent 100
at constant chemical potential 48
for segmented copolymers 100
polymer-solvent pairs 180

relaxation time
dynamic light scattering 19

rod-like particles 65, 71, 76
rotational diffusion coefficient 71,

72, 78
rotation-translation-coupling 77

salt, polyelectrolyte effects 44,
66, 74

sample cell 30, 36, 43, 177
cleaning 49, 86

sample concentration 44
sample concentration, polyelectrolyte

effects 16, 45

Page 200

Index 191

sample concentration, polylectrolyte
effects 71

sample filtration 178
sample viscosity 18, 43, 180

temperature dependence 180
scattered light amplitude 4
scattered light intensity 4
scattering angle 1, 4
scattering geometry

vh 71
vv 5

scattering plane 3
scattering standard, toluene 7, 180
scattering vector 8, 15
scattering volume 4, 26
segmented copolymer chains 99
selfdiffusion coefficient 3, 17, 51
Siegert relation 18, 20
single angle light scattering 26
size resolution, dynamic light scattering

55, 172
slow mode, dynamic light scattering

45, 69
small angle light scattering 31, 139
software correlation 29, 160, 164
starch 61, 111
static light scattering

branched macromolecules 111
ellipsoidal particles 119
fractal aggregates 143
micelles 108, 131
polyelectrolyte effects 44, 45
polymer coils 96, 139

rod-like particles 131, 136
segmented copolymer chains 100
turbid samples 167
vesicles 119, 128

Stokes-Einstein-equation 18
structure factor 8, 16, 44

thermal lensing 88
toluene, scattering standard 7, 180
turbid samples

3D crosscorrelation 34
dual color crosscorrelation 34, 155
fiber optic quasielastic light

scattering 33, 149
static light scattering 167

van Hove correlation function 17
vesicles 118, 126
Virial coefficient 6, 10, 97, 115
Virial equation 10, 109, 115
wave equation, polarized light 1
weight average molar mass 10
worm-like micelles 130

z-average
inverse hydrodynamic radius

23, 40
radius of gyration 10

Zimm equation 10
Zimm plot 10, 45, 97

�-ratio
definition 24

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