Lan, Y;
Wu, J;
Han, SH;
Yadavali, S;
Issadore, D;
Stebe, KJ;
Lee, D;
(2020)
Scalable Synthesis of Janus Particles with High Naturality.
ACS Sustainable Chemistry and Engineering
, 8
(48)
pp. 17680-17686.
10.1021/acssuschemeng.0c04929.
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Abstract
Because of the increasing concerns about the ecological damage and negative health effects that may be caused by petrochemical-based microbeads, many countries are banning their use in a wide range of consumer products. One particular class of particles that may never reach their full potential because of such a ban is Janus particles, which are particles with two opposite properties. Despite significant progress in the scalable synthesis of Janus particles, most studies rely on petrochemical-based materials and solvents to enable their synthesis. In this report, we present a single-emulsion polymerization method for scalable synthesis of amphiphilic Janus particles with materials derived from plants. Soybean oil-epoxidized acrylate (SBOEA) monomers are polymerized in single-emulsion droplets of SBOEA, ethyl cellulose (EC), butyl acetate, and initiators that can be generated by either bulk or microfluidic emulsification, leading to the formation of amphiphilic soybean oil polymer/EC (SBOP/EC) Janus particles. Interfacial anchoring of the in situ-formed SBOP particles at the interface of the emulsion droplet plays a key role in the formation of the SBOP/EC Janus particles. Large-scale preparation of uniform SBOP/EC Janus particles is also demonstrated using a glass-silicon microfluidic device. Finally, the SBOP/EC Janus particles show potential to stabilize oil-in-water emulsions that can stay stable under flowing conditions.
| Type: | Article |
|---|---|
| Title: | Scalable Synthesis of Janus Particles with High Naturality |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acssuschemeng.0c04929 |
| Publisher version: | https://doi.org/10.1021/acssuschemeng.0c04929 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Janus particles, green materials, scalable synthesis, interfacial polymerization, microfluidics |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10117249 |
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