Journal
NANOTECHNOLOGY
Volume 26, Issue 20, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/0957-4484/26/20/205602
Keywords
directed self assembly; nanofiber networks; molecular dynamics simulations
Funding
- National Natural Science Foundation of China [11222217, 11472150]
- State Key Laboratory of Mechanics and Control of Mechanical Structures (Nanjing University of Aeronautics and Astronautics) [MCMS-0414G01]
- DARPA
- MIT Energy Initiative (MITEI)
- MRSEC Program of the National Science Foundation [DMR-0819762]
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We explore the directed self-assembly (DSA) process of end-functionalized nanofibers (NFs) by performing coarse-grained molecular dynamics simulations. We find that by tuning their interactions, NFs aggregate and self-organize into networks with specific topologies ranging from percolated networks to liquid crystal-like long-chain phases. The underlying mechanism is explained through an analytical model from a minimum energy perspective. In addition to offering microscopic understandings of the DSA process, the findings reported here can also guide robust target-specified design of nanofibrous materials into organized network structures.
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