4.4 Article

Equilibrium phase diagram of semi-flexible polymer networks with linkers

Journal

EPL
Volume 102, Issue 3, Pages -

Publisher

EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
DOI: 10.1209/0295-5075/102/38003

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Funding

  1. International Graduate School of Science and Engineering (IGSSE) of the TUM
  2. Institute of Advanced Studies of the TUM
  3. NSF under DMR [1006128]
  4. Direct For Mathematical & Physical Scien [1006128] Funding Source: National Science Foundation
  5. Division Of Materials Research [1006128] Funding Source: National Science Foundation

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We present the determination by numerical simulation of the equilibrium phase diagram of solutions of semi-flexible polymers with linker molecules. At low linker concentrations the solution forms an isotropic gel phase. At higher linker concentrations we encounter-depending on the properties of the linker molecules-bundle phases, liquid-crystalline mesophases with broken bond-orientational order that had been predicted by analytical theories, and in addition a novel equilibrium state: the cluster phase. Equilibrium condensation of semi-flexible polymers appears to be controlled by linker entropy. The results are compared with the phase behavior of solutions of biopolymers and linker proteins. Copyright (C) EPLA, 2013

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