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Aqueous Polymeric Hollow Particles as an Opacifier by Emulsion Polymerization Using Macro-RAFT Amphiphiles
- Source :
- Langmuir. 34:4255-4263
- Publication Year :
- 2018
- Publisher :
- American Chemical Society (ACS), 2018.
-
Abstract
- A robust polymerization technique that enables the surfactant-free aqueous synthesis of a high solid content latex containing polymeric hollow particles is presented. Uniquely designed amphiphilic macro-reversible addition fragmentation chain transfer (RAFT) copolymers were used as sole stabilizers for monomer emulsification as well as for free-radical emulsion polymerization. The polymerization was found to be under RAFT control, generating various morphologies from spherical particles, wormlike structures to polymer vesicles. The final particles were dominantly polymeric vesicles which had a substantially uniform and continuous polymer layer around a single aqueous filled void. They produced hollow particles once dried and were successfully used as opacifiers to impart opacity into polymer paint films. This method is simple, can be performed in a controllable and reproducible manner, and may be performed using diverse procedures.
- Subjects :
- chemistry.chemical_classification
Aqueous solution
Materials science
technology, industry, and agriculture
Emulsion polymerization
Chain transfer
02 engineering and technology
Surfaces and Interfaces
Polymer
Raft
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
chemistry.chemical_compound
Monomer
chemistry
Chemical engineering
Polymerization
Electrochemistry
Copolymer
General Materials Science
0210 nano-technology
Spectroscopy
Subjects
Details
- ISSN :
- 15205827 and 07437463
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- Langmuir
- Accession number :
- edsair.doi.dedup.....878f45b80444a88f4d7bc292c084d9fe