Journal
LANGMUIR
Volume 29, Issue 33, Pages 10340-10345Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la401232g
Keywords
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Funding
- National Science Foundation (CBET) [1033851]
- Division Of Materials Research [1062691] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys [1033851] Funding Source: National Science Foundation
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Chains of micrometer-size colloidal particles have been self-assembled that are flexible, mechanically stable, and observable in optical microscopy. The chains sometimes have more than 30 particles, and we call them polloidal chains. A key aspect of the work is the careful modeling of the interparticle forces between partially flattened polystyrene spheres. This modeling helped us to identify a narrow window of system conditions that produce interparticle physical bonds with a bond energy greater than 15kT, as well as a gap of fluid between particles that enables freely rotating bonds and flexible chains. The formation of the chains is well-modeled using linear condensation growth from classical polymer theory, suggesting that the chains might be used experimentally as large-scale, relatively slow moving models for polymer chains.
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