Polymers

Blending polymers with Janus particles

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Science  24 Oct 2014:
Vol. 346, Issue 6208, pp. 436-437
DOI: 10.1126/science.346.6208.436-f

Blending polymers can be difficult because most don't mix with each other. To overcome that incompatibility, a “compatibilizer” can be added, such as one with chains of the two components, which can be linked by a third component that will dissolve in both. Bahrami et al. show that Janus particles, in which chains of the two polymers are attached to a nanoparticle, are superior stabilizers of polymer blends. In addition to the chemical stabilization caused by having the two components linked together, the nanoparticles naturally segregate to the interface due to the Pickering effect. The authors show that the Janus nanoparticles can be made in relatively large quantities and can stabilize mixtures of industrially relevant polymers.

ACS Nano 10.1021/nn502662p (2014).

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