期刊
NANO LETTERS
卷 15, 期 8, 页码 5465-5471出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01859
关键词
Nanocomposites; supramolecular interactions; mechanical properties; hydrogen bonding; reinforcement
类别
资金
- US Department of Energy, Division of Materials Sciences [DE-FG02-04ER46162]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1408323] Funding Source: National Science Foundation
It is now well accepted that the addition of nanoparticles (NPs) can strongly affect the thermomechanical properties of the polymers into which they are incorporated. In the solid (glassy) state, previous work has implied that optimal mechanical properties are achieved when the NPs are well dispersed in the matrix and when there is strong interfacial binding between the grafted NPs and the polymer matrix. Here we provide strong evidence supporting the importance of intermolecular interactions through the use of NPs grafted with polymers that can hydrogen bond with the matrix, yielding to significant improvements in the measured mechanical properties. Our finding thus supports the previously implied central role of strong interfacial binding in optimizing the mechanical properties of polymer nanocomposites.
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