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- Title
Facile Synthesis and Topological Transformation of Multicomponent Miktoarm Star Copolymers.
- Authors
Zhao, Youliang
- Abstract
Multicomponent miktoarm stars (MMSs) comprising at least three kinds of chemically different arm segments are extremely important due to their great potential as multiphase materials to elucidate composition/topology‐dependent properties and applications. At present, a "core first" route gives ABC stars, "coupling onto" and combinatorial methods afford ABC and ABCD stars, and modular and iterative approaches enable facile synthesis of MMSs with five or more components. Meanwhile, the introduction of stimuli‐labile linkages and couplable groups into star polymers further enriches the family of smart materials. Upon external stimuli, linking reaction, or postpolymerization modification, miktoarm stars are potentially converted into other architectural polymers such as linear, tadpole‐like, graft, and dendrimer‐like polymers via cleavage and rearrangement in the chain structure. This feature article aims to systematically summarize the synthetic methods and versatile topological transitions of ABC, ABCD, and ABCDE stars. The advantages and limitations of each approach are highlighted, and the future considerations on developments and challenges are discussed. Multicomponent miktoarm stars (MMSs) hold great promise as multiphase materials toward multipurpose applications. To date, modular and iterative methods have been adopted to construct star copolymers with five or more compositions. In this feature article, strategies for the synthesis of ABC‐, ABCD‐, and ABCDE‐type MMSs are reviewed, versatile topological transformations are highlighted, and the remaining challenges are discussed.
- Subjects
STAR-branched polymers; COPOLYMERS
- Publication
Macromolecular Rapid Communications, 2019, Vol 40, Issue 6, pN.PAG
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201800571