Report
Elastic Microphase Separation Produces Robust Bicontinuous Materials
| العنوان: | Elastic Microphase Separation Produces Robust Bicontinuous Materials |
|---|---|
| المؤلفون: | Fernández-Rico, Carla, Schreiber, Sanjay, Oudich, Hamza, Lorenz, Charlotta, Sicher, Alba, Sai, Tianqi, Heyden, Stefanie, Carrara, Pietro, De Lorenzis, Laura, Style, Robert W., Dufresne, Eric R. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Condensed Matter - Materials Science, Condensed Matter - Statistical Mechanics |
| الوصف: | Bicontinuous microstructures are essential to the function of diverse natural and synthetic systems. Their synthesis has been based on two approaches: arrested phase separation or self-assembly of block copolymers. The former is attractive for its chemical simplicity, the latter for its thermodynamic robustness. Here, we introduce Elastic MicroPhase Separation (EMPS) as an alternative approach to make bicontinuous microstructures. Conceptually, EMPS balances the molecular-scale forces that drive demixing with large-scale elasticity to encode a thermodynamic length scale. This process features a continuous phase transition, reversible without hysteresis. Practically, we trigger EMPS by simply super-saturating an elastomeric matrix with a liquid. This results in uniform bicontinuous materials with a well-defined microscopic length-scale tuned by the matrix stiffness. The versatility and robustness of EMPS is further demonstrated by fabricating bicontinuous materials with superior mechanical properties and controlled anisotropy and microstructural gradients. Comment: 10 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2304.11419 |
| رقم الانضمام: | edsarx.2304.11419 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |