Glassy states in asymmetric mixtures of soft and hard colloids

Domenico Truzzolillo*, Daniela Marzi, John Marakis, Barbara Capone, Manuel Camargo, Abdul Munam, Firmin Moingeon, Mario Gauthier, Christos N. Likos, Dimitris Vlassopoulos

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

20 اقتباسات (Scopus)


By employing rheological experiments, mode coupling theory, and computer simulations based on realistic coarse-grained models, we investigate the effects of small, hard colloids on the glassy states formed by large, soft colloids. Multiarm star polymers mimic hard and soft colloids by appropriately varying the number and size of their arms. The addition of hard colloids leads, depending on their concentration, to either melting of the soft glass or the emergence of two distinct glassy states. We explain our findings by depletion of the colloids adjacent to the stars, which leads to an arrested phase separation when the repulsive glass line meets the demixing binodal. The parameter-free agreement between experiment, theory, and simulations suggests the generic nature of our results and opens the route for designing soft-hard colloidal composites with tunable rheology.

اللغة الأصليةEnglish
رقم المقال208301
دوريةPhysical Review Letters
مستوى الصوت111
رقم الإصدار20
المعرِّفات الرقمية للأشياء
حالة النشرPublished - نوفمبر 14 2013
منشور خارجيًانعم

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