Journal Article

FZJ-2020-04503

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Shear Flow Behavior of Bidisperse Rodlike Colloids

Lang, C. (Corresponding author)FZJ* ; Lettinga, M. P.FZJ*

2020
Soc. Washington, DC

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/30522  doi:10.1021/acs.macromol.9b02239

Abstract: A priori prediction of the flow properties ofpolydisperse rodlike macromolecules is a prerequisite for theunderstanding of many industrial and biological processes. Usingmixtures of two naturally monodisperse viruses, we create abenchmark bidisperse suspension of rodlike colloids to test theeffect of length bidispersity on the shear flow behavior. We findthat the zero-shear viscosity is a nonlinear function of the fractionof long rods because of the strong length dependence of therotational dynamics, which determine this quantity. Withincreasing concentration and fraction of long rods, the shearthinning gets more pronounced, following the predictions of ourrecently proposed theory which we extended for bidisperse mixtures. This theory allows for a quantitative prediction of the flow properties of bi- and polydisperse mixtures of ideal rods at least for moderate polydispersity.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Soft Condensed Matter (2nd)

---

Contributing Institute(s):

1. JCNS-4 (JCNS-4)
2. Heinz Maier-Leibnitz Zentrum (MLZ)
3. Biomakromolekulare Systeme und Prozesse (IBI-4)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)
2. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2021

---

Database coverage:
; ; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---