Abstract
The combination of efficient and harmonious aza-Michael and thiol-Michael reactions in one pot is first reported for the convenient synthesis of thermo-, oxidation-, pH-, and CO2 -responsive polymers. The simultaneous two-type Michael reactions are proved to proceed smoothly without additional catalyst. The dithiol and diamine are involved in the copolymerization competitively and thus in a random distribution. A wide range of commercially available starting materials are utilized for the simultaneous two-type Michael reactions in one pot to obtain various responsive polymers with different structures. The cloud point of the thermo-responsive polymers is easily tuned by adjusting the copolymerization ratio of monomers or using monomers with different structures. Besides, the oxidation- and pH-/CO2 - responsiveness are also demonstrated.
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