By Kenneth S. Schmitz
Dynamic mild scattering (DLS) innovations supply information regarding dimension, form, and adaptability of debris in addition to delivering perception in regards to the nature of the interactions among debris and their environments. This publication deals a research of DLS by way of macromolecular and polyelectrolyte answer
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Extra resources for An Introduction to Dynamic Light Scattering by Macromolecules
P h o t o n correlation spectrocopy counts the number of photons n(t) arriving at the photocathode surface during a predetermined time 42 2. BASIC C O N C E P T S O F L I G H T S C A T T E R I N G interval. The correlation function is 2
13. Zimm plot of poly(acrylamide). [Reproduced with permission from Patterson and Jamieson (1985). Macromolecules, (1985), 1 8 , 2 6 6 - 2 7 2 . 1 M NaCl. 170 m L / g at λ = 546 nm. A representative Zimm plot is given in Fig. 13. 333, calculate M p , (Rq} , and B 2 for this preparation. 15. Patterson and Jamieson (1985) also used Q E L S methods in their study of the PAAm system (cf. Prob. 50 picoficks (1 fick = 1 m / s ) . Calculate the apparent hydrodynamic radius (RH). F r o m the results in P r o b .
Cohen et al. 0. D a pp was found to be a strong nonlinear function of the G D H concentration, indicating extensive aggregation. 4 χ 1 0 " c m / s . Calculate RH for this particle. 17. Pullulan is an extracellular polysaccharide. K a t o et al. (1984) examined 1 / 2 the M p dependence of D a p p, < # g > , and [rç] of dilute aqueous solutions of pullulan at 25°C. 5 nm. Calculate the hydrodynamic radius and the ratio 1/2 RH/(Rl} . Why might this ratio differ from unity? 18. P h o t o n correlation spectrocopy counts the number of photons n(t) arriving at the photocathode surface during a predetermined time 42 2.