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Inorganic‐Macroion‐Induced Formation of Bicontinuous Block Copolymer Nanocomposites with Enhanced Conductivity and Modulus
Author(s) -
Zhang Liying,
Cui Tingting,
Cao Xiao,
Zhao Chengji,
Chen Quan,
Wu Lixin,
Li Haolong
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201702785
Subject(s) - copolymer , nanocomposite , materials science , lamellar structure , conductivity , polyoxometalate , polymer , phase (matter) , polymer chemistry , volume fraction , modulus , glass transition , phase transition , composite material , chemical engineering , chemistry , organic chemistry , thermodynamics , catalysis , engineering , physics
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.