期刊
POLYMER REVIEWS
卷 61, 期 1, 页码 54-79出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15583724.2020.1743307
关键词
Polymer colloids; thiol-X chemistry; step-growth polymerization; heterogeneous polymerization; functionalized polymer particles
资金
- Department of Chemistry AMP
- Biomolecular Science at Clarkson University, a New York State Center for Advanced Technology
- J. William Fulbright Foreign Scholarship Board through the US Fulbright Scholars Program
- Center for Advanced Materials Processing at Clarkson University, a New York State Center for Advanced Technology
Thiol-X polymerizations have been widely used in the production of polymer colloidal particles, offering high yields, rapid synthesis, and compatibility with various monomer species. These reactions have been applied in heterogeneous polymerizations using different methods, showcasing their adaptability and practicality. The step-growth mechanism in thiol-X polymerizations allows for straightforward polymer functionalization and the examples provided demonstrate their potential in creating new technologies.
This review article covers recent developments in thiol-X polymerizations as applied to the production of polymer colloidal particles. These polymerizations include thiol-ene, thiol-yne, thio-Michael, and thio-isocyanate polymerizations. Such thiol-X chemistries are facile reactions that offer high yields, rapid synthesis using mild conditions, orthogonality with other methods of organic synthesis, compatibility with a variety of monomer species, and can be radical or base mediated. Recent years have seen the employment of these reactions for the synthesis of polymer colloids in heterogeneous polymerizations such as suspension, dispersion, emulsion, and miniemulsion polymerizations, using microfluidic and batch production methods. A particular feature of thiol-X chemistries is their step-growth mechanism for molecular weight development, which contrasts with chain-growth polymerizations that are more commonly used in heterogeneous polymerizations. This aspect of thiol-X polymerizations allows for straightforward polymer functionalization simply through controlling the functional group stoichiometry. Another benefit is that radical-mediated thiol-X chemistries can be conducted with photo, thermal, or redox initiation, which epitomizes the practicality/adaptability of these reactions. Examples of highly functionalized thiol-X colloidal polymers are provided along with how such functionalization can be leveraged in order to provide desired properties. Therefore, polymer colloids made by thiol-X chemistries are expected to be a platform upon which many new technologies can be built.
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