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Synthesis of Thermo‐, Oxidation‐, pH‐, and CO 2 ‐Responsive Polymers via the Combination of Aza‐Michael and Thiol‐Michael Reactions in One Pot
Author(s) -
Qin Herong,
Chen Xu,
Luo Dong,
Wang Biyun,
Tan Qinglan,
Liang Hui,
Lu Jiang,
Huang Jianbing
Publication year - 2019
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201900342
Subject(s) - michael reaction , copolymer , monomer , polymer , thiol , dithiol , polymer chemistry , chemistry , catalysis , materials science , organic chemistry
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 CO 2 ‐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‐/CO 2 ‐ responsiveness are also demonstrated.