Elastomeric Conducting Polyaniline Formed Through Topological Control of Molecular Templates

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• 作者：Hangjun Ding ; Mingjiang Zhong ; Haosheng Wu ; Sangwoo Park ; Jacob W. Mohin ; Luke Klosterman ; Zhou Yang ; Huai Yang ; Krzysztof Matyjaszewski ; Christopher John Bettinger
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：June 28, 2016
• 年：2016
• 卷：10
• 期：6
• 页码：5991-5998
• 全文大小：509K
• 年卷期：0
• ISSN：1936-086X

文摘

A strategy for creating elastomeric conducting polyaniline networks is described. Simultaneous elastomeric mechanical properties (E < 10 MPa) and electronic conductivities (σ > 10 S cm^–1) are achieved via molecular templating of conjugated polymer networks. Diblock copolymers with star topologies processed into self-assembled elastomeric thin films reduce the percolation threshold of polyaniline synthesized via in situ polymerization. Block copolymer templates with star topologies produce elastomeric conjugated polymer composites with Young’s moduli ranging from 4 to 12 MPa, maximum elongations up to 90 ± 10%, and electrical conductivities of 30 ± 10 S cm^–1. Templated polyaniline films exhibit Young’s moduli up to 3 orders of magnitude smaller compared to bulk polyaniline films while preserving comparable bulk electronic conductivity. Flexible conducting polymers have prospective applications in devices for energy storage and conversion, consumer electronics, and bioelectronics.