Birefringence, transient electrical

Figure 4.1. Time scales for rotational motions of long DNAs that contribute to the relaxation of the optical anisotropy r(t). Experimental methods used to study these motions in different time ranges are also indicated along with the authors and dates of some early work in each case. FPA, Fluorescence polarization anisotropy (Refs. 15, 18-20, and 87) TPD, transient photodichroism (Refs. 28 and 62) TEB, transient electric birefringence (Refs. 26 and 27) DDLS, depolarized dynamic light scattering (Ref. 116) TED, transient electric dichroism (Refs. 25, 115, and 130) Microscopy, time-resolved fluorescent microscopy (Ref. 176).

Dynamic Light Scattering and Transient Electric Birefringence Study of Poly(vinyI chloride) Micrc els... 

In this study, has been investigated by means of quasi-elastic light scattering and transient electric birefringence the effect of the quenching concentration on the structure of the PVC aggregates as well as the thermal stability of these aggregates. 

Table I. Transient electric birefringence parameters for PVC solutions at C = 10 g cm...

A (1.6). The filled symbols correspond to the Dq values calculated from the transient electric birefringence results (cf. text). 

We have also reported on the ordinate axis of Fig.3 the values of the translational diffusion coefficient calculated from radius values measured by transient electric birefringence, using ... 

D.F. Nicoli, J.G. Elias and D. Eden, Transient electric birefringence study of CTAB micelles implications for rodlike growth, J. Phys. Chem. 85 (1981) 2866-2869. 

Colloidal dispersions suspensions and aggregates Viscosity and transient electric birefringence study of clay colloidal aggregation. Physical Review E 65, 21407-21500... 

It is necessary to mention that Eqs. (4.375)-(4.377) are close analogs of the expressions derived by O Konski et al. while studying transient electric birefringence in solutions. The only difference between our Eqs. (4.376) and (4.377) and those of Ref. 149 is in the representation of the self-similar argument in Ref. 149 it is )tjxg, since that paper deals with a transient process. 

Photon Correlation Spectroscopy, Transient Electric Birefringence, and Characterization of Particle Size Distributions in Colloidal Suspensions... 

In colloidal suspensions of anisotropic particles, the static structure factor plays a prominent role in particle size analysis. We have used transient electric birefringence (TEB) and electron microscopy, in addition to laser light scattering, to correlate our analysis of particle size distributions of bentonite suspensions. The complementary nature of TEB and photon correlation spectroscopy (PCS) in particle size analysis will be discussed. 

Quasi-elastic Light Scattering Conversion3 Transient Electric Birefringence Viscosity Corrected to w, 20°C Sense of Biref. 

D and D are the weight- and z-averaged diffusion coefficients, respectively. Weight averaging is obtained directly by transient electric birefringence. 

The behavior of water in oil microemulsions has been studied using different techniques light scattering, electrical conductivity, viscosity, transient electrical birefringence, ultrasonic absorption. All these experiments lead us to propose a picture of the microemulsions structure which assignes an important role to the fluidity of the interfacial region. 

Wesenberg GE, Vaughan WE. Theory of the transient electric birefringence of rod-like polyions coupling of rotational and counterion dynamics. J Chem Phys 1987 87 4240-4241. 

Submicrosecond components in transient electric birefringence Depends on length 87... 

Figure 1 Block diagram of a typical electrical birefringence apparatus using either square-pulse (for transient electrical birefringence) or oscillating field (for dynamic electrical birefringence) perturbations. P, polarizer A, analyzer A/4, quarter-wave retardation plate P.S., power supply P.M.T., photomultiplier tube HP-214A, wave-form generator. (Reprinted with permission from Ref. 41. Copyright 1994 American Chemical Society.)...

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