Experimental synthesis demonstrates radical copolymerization of a thionolactone to insert cleavable thioester bonds into vinyl polymers, suggesting a versatile route to degradable materials.
The radical copolymerization of the thionolactone dibenzo[c,e]oxepane-5-thione with acrylates, acrylonitrile, and N,N-dimethylacrylamide afforded copolymers containing a controllable amount of backbone thioesters which could be selectively cleaved. The process is compatible with RAFT polymerization and promising for the development of advanced degradable polymers.
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Bingham et al. (2018) studied this question.
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