Tailoring the flow of soft glasses by soft additives
| Autor: | Christos N. Likos, Hartmut Löwen, Nikos Hadjichristidis, Jacques Roovers, Hermis Iatrou, Francesco Sciortino, Dimitris Vlassopoulos, Christian Mayer, Emanuela Zaccarelli, Piero Tartaglia, A. Asteriadi |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers Viscosity Microfluidics FOS: Physical sciences General Physics and Astronomy Polymer Condensed Matter - Soft Condensed Matter Condensed Matter::Disordered Systems and Neural Networks Phase Transition Condensed Matter::Soft Condensed Matter Rheology chemistry Models Chemical Mode coupling Soft Condensed Matter (cond-mat.soft) Vitrification Computer Simulation Soft matter Polymer blend Glass Composite material Glass transition Complex fluid |
| Zdroj: | Physical review letters 95 (2005). doi:10.1103/PhysRevLett.95.268301 info:cnr-pdr/source/autori:E. Zaccarelli (1,2); C. Mayer (3); A. Asteriadi (4); C.N. Likos (3); F. Sciortino (1); J. Roovers (5); H. Iatrou (6); N. Hadjichristidis (6); P. Tartaglia (7); H. Löwen (3); D. Vlassopoulos (4,8)/titolo:Tailoring the flow of soft glasses by soft additives/doi:10.1103%2FPhysRevLett.95.268301/rivista:Physical review letters (Print)/anno:2005/pagina_da:/pagina_a:/intervallo_pagine:/volume:95 |
| ISSN: | 0031-9007 |
| Popis: | We examine the vitrification and melting of asymmetric star polymers mixtures by combining rheological measurements with mode coupling theory. We identify two types of glassy states, a {\it single} glass, in which the small component is fluid in the glassy matrix of the big one and a {\it double} glass, in which both components are vitrified. Addition of small star polymers leads to melting of {\it both} glasses and the melting curve has a non-monotonic dependence on the star-star size ratio. The phenomenon opens new ways for externally steering the rheological behavior of soft matter systems. 4 pages, 4 figures, accepted in Phys. Rev. Lett |
| Databáze: | OpenAIRE |
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