ISSN:
0887-6266
Keywords:
scattering
;
dynamic scattering
;
high-wave vector
;
branched polymers
;
hydrodynamic interactions
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
An analysis of dynamic scattering behavior of branched polymers in the high-wave vector region is presented. In particular the first cumulant of the dynamic structure factor Ω(q) is examined. This quantity is calculated using the standard formula which defines Ω(q) within a proportionality constant as a ratio of the generalized mobility M(q) and the static structure factor S(q), where q is the amplitude of the scattering wave vector. The latter quantity has already been calculated by Benoît et al. who obtained a general formula for a branched polymer with an arbitrary architecture. Here, this calculation is extended to the mobility M(q) including hydrodynamic interaction with the angular pre-averaged Oseen tensor. This result may be useful in the cases where the measurement of the first cumulant by quasi-elastic scattering techniques can be made to complete the information obtained by the absolute intensity measurements. © 1994 John Wiley & Sons, Inc.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/polb.1994.090321006
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