Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 10, Pages 8411-8416Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b01704
Keywords
polymer blends; compatibilization; reactive blending; bicontinuous structure; carbon nanotubes; interface
Funding
- National Natural Science Foundation of China [21674033]
- National Key R&D Program of China [2016ZX05028-005-001]
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Physically anchoring carbon nanotubes (CNTs) onto the interface of immiscible polymer blends has been extensively reported; however, enhancement of physical properties of the blends has seldom been achieved. Herein, we used CNTs with reactive epoxide groups and long poly(methyl methacrylate) (PMMA) tails as a thermodynamic compatibilizer for immiscible poly vinylidene fluoride/poly L-lactide (PVDF/PLLA) blends. The CNTs acted as an efficient compatibilizer and bridged the two phases through physical entanglement and chemical reaction. The sea island structure, of the blend transformed into a bicontinuous structure for CNT contents greater than 3 wt %. The mechanical properties, including ductility and tensile strength, thermal properties, and electrical conductivities were all enhanced by the CNTs compatibilizer. This strategy thermodynamically compatibilized by reactive nanofillers paves the way for advanced blend nanocomposites.
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