Pentablock Copolymer from Tetracomponent Monomer Mixture Using a Switchable Dizinc Catalyst
2018
Chen, Thomas T. D. | Zhu, Yunqing | Williams, Charlotte K.
Well-defined pentablock copolymers are prepared using a single catalyst, in one pot, from four different monomers: anhydride, epoxide, lactone, and CO₂. The dizinc catalyst bridges three distinct polymerization cycles and performs a double switch in polymerization mechanism to produce pentablock copolymers. The new materials are hydroxyl-telechelic and are efficiently postfunctionalized to introduce polar and nonpolar side-chains.
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