Abstract

We describe a simplified method to synthesize film forming polymer Janus particles by phase separation during RAFT-based free radical emulsion polymerization. Fully crosslinked snowman- or football-shaped polystyrene Janus particles (PSJPs) were first produced in a one-step batch process using amphiphilic triblock macro-RAFT copolymers as stabilizers. Such particles were in turn employed as seeds in a continuous emulsion polymerization in which a monomer mixture of methyl methacrylate (MMA) and butyl acrylate (BA) (1/1 by weight) was constantly injected into the reaction in the presence of a water soluble initiator. The added monomers wetted seed particle surface and their polymerization led to formations of 93-nm film forming single- or two-headed Janus particles. The resulted latex was successfully used to disperse and encapsulate solid calcite extender.

Details

Title
Janus particles by simplified RAFT-based emulsion polymerization process for polymer coating
Author
Nguyen, Duc 1   VIAFID ORCID Logo  ; Huynh, Vien T 1 ; Serelis Algirdas K 2 ; Davey, Tim 2 ; Paravagna Olga 2 ; Such, Chris H 2 ; Hawkett, Brian S 1 

1  University of Sydney Nano Institute, The University of Sydney, Key Centre for Polymers and Colloids, School of Chemistry, Sydney, Australia (GRID:grid.1013.3) (ISNI:0000 0004 1936 834X) 
2  DuluxGroup Australia, Clayton, Australia (GRID:grid.1013.3) 
Pages
341-349
Publication year
2022
Publication date
Apr 2022
Publisher
Springer Nature B.V.
ISSN
0303402X
e-ISSN
14351536
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1007/s00396-021-04939-x
ProQuest document ID
2643124184
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.