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2. Radical ring-opening polymerization
2.1 Concept and different monomer families
Although traditional vinyl monomers are polymerized by chain addition with the creation of carbon-carbon bonds, some cyclic monomers bearing vinyl/exomethylene groups or equivalents can be polymerized free-radically by a ring-opening mechanism. Polymerization of cyclic monomers bearing a vinyl group leads to polymers with a double bond in the polymer backbone, while polymerization of cyclic compounds with an exomethylene group produces polymers with a pendant double bond. The functionality (e.g. ketone, ester, amide, thioester, etc.) derives from the nature of the W and Z atoms in the α position of the initial C=Y double bond (figure
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Radical ring-opening polymerization
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Bibliography
Standards and norms
- Biodégradabilité facile. - OCDE 301 - 2013
- Evaluation of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions – Method for analyzing released carbon dioxide – Part 1: general method. ISO. - ISO 14855-1 - 2012
- Standard Practice for Evaluating Biofouling Resistance and Physical Performance of Marine Coating Systems. ASTM. - ASTM D6990-05 - 2011
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Modified adsorption material for treating wastewater. CN112619619A
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