Crowded, Confined, and Frustrated: Dynamics of Molecules Tethered to Nanoparticles
Type
ArticleKAUST Grant Number
KUS-C1-018-02Date
2012-12-19Permanent link to this record
http://hdl.handle.net/10754/597901
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Above a critical chemistry-dependent molecular weight, all polymer molecules entangle and, as a result, exhibit slow dynamics, enhanced viscosity, and elasticity. Herein we report on the dynamics of low molecular weight polymers tethered to nanoparticles and find that even conventionally unentangled chains manifest dynamical features similar to entangled, long-chain molecules. Our findings are shown to imply that crowding and confinement of polymers on particles produce topological constraints analogous to those in entangled systems. © 2012 American Physical Society.Citation
Agarwal P, Kim SA, Archer LA (2012) Crowded, Confined, and Frustrated: Dynamics of Molecules Tethered to Nanoparticles. Physical Review Letters 109. Available: http://dx.doi.org/10.1103/PhysRevLett.109.258301.Sponsors
This work was supported by the National Science Foundation Grant No. DMR-1006323 and by Grant No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). Facilities available though the Cornell Center for Materials Research (CCMR) were used for this study.Publisher
American Physical Society (APS)Journal
Physical Review LettersPubMed ID
23368504ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevLett.109.258301
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