writer：Liying Zhang, Tingting Cui, Xiao Cao, Chengji Zhao, Quan Chen, Lixin Wu, Haolong Li*
keywords：Block copolymer, Bi-continuous phase
source：期刊
specific source：Angew. Chem. Int. Ed. 2017, 56, 9013-9017.
Issue time：2017年

A facile and electrostatically driven approach has been developed to prepare bicontinuous polymer nanocomposites that is based on the polyoxometalate (POM) macroion induced phase transition of PS-b-P2VP from an initial lamellar phase to a stable bicontinuous phase. The multi-charged POMs can electrostatically cross-link P2VP blocks and give rise to bicontinuous phases in which the POM hybrid conductive domains occupy a large volume fraction of more than 50?%. Furthermore, the POMs can give rise to high proton conductivity and serve as nanoenhancers, endowing the bicontinuous nanocomposites with a conductivity of 0.1?mS?cm?1 and a Young''s modulus of 7.4?GPa at room temperature; these values are greater than those of pristine PS-b-P2VP by two orders of magnitude and a factor of 1.8, respectively. This approach can provide a new concept based on electrostatic control to design functional bicontinuous polymer materials.

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