Multiscale structure, interfacial cohesion, adsorbed layers, and thermodynamics in dense polymer-nanoparticle mixtures
We establish the existence and size of adsorbed polymer layers in miscible dense nanocomposites and their consequences on microstructure and the bulk modulus. Using contrast-matching small-angle neutron scattering to characterize all partial collective structure factors of polymers, particles, and t...
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| Veröffentlicht in: | Physical review letters 2011-11, Vol.107 (22), p.225504-225504, Article 225504 |
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| container_end_page | 225504 |
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| container_title | Physical review letters |
| container_volume | 107 |
| creator | Kim, So Youn Schweizer, Kenneth S Zukoski, Charles F |
| description | We establish the existence and size of adsorbed polymer layers in miscible dense nanocomposites and their consequences on microstructure and the bulk modulus. Using contrast-matching small-angle neutron scattering to characterize all partial collective structure factors of polymers, particles, and their interface, we demonstrate qualitative failure of the random phase approximation, accuracy of the polymer reference site interaction model theory, ability to deduce the adsorbed polymer layer thickness, and high sensitivity of the nanocomposite bulk modulus to interfacial cohesion. |
| doi_str_mv | 10.1103/PhysRevLett.107.225504 |
| format | Article |
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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2011-11, Vol.107 (22), p.225504-225504, Article 225504 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| title | Multiscale structure, interfacial cohesion, adsorbed layers, and thermodynamics in dense polymer-nanoparticle mixtures |
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