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    Crowded, Confined, and Frustrated: Dynamics of Molecules Tethered to Nanoparticles

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    Type
    Article
    Authors
    Agarwal, Praveen
    Kim, Sung A.
    Archer, Lynden A. cc
    KAUST Grant Number
    KUS-C1-018-02
    Date
    2012-12-19
    Permanent link to this record
    http://hdl.handle.net/10754/597901
    
    Metadata
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    Abstract
    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 Letters
    DOI
    10.1103/PhysRevLett.109.258301
    PubMed ID
    23368504
    ae974a485f413a2113503eed53cd6c53
    10.1103/PhysRevLett.109.258301
    Scopus Count
    Collections
    Publications Acknowledging KAUST Support

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