Janus Graft Block Copolymers: Design of a Polymer Architecture for Independently Tuned Nanostructures and Polymer Properties |
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| Authors: | Dr Zi‐Hao Guo An N Le Dr Xunda Feng Youngwoo Choo Bingqian Liu Danyu Wang Zhengyi Wan Yuwei Gu Julia Zhao Vince Li Prof Chinedum O Osuji Prof Jeremiah A Johnson Prof Mingjiang Zhong |
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| Institution: | 1. Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA;2. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA |
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| Abstract: | The graft‐through synthesis of Janus graft block copolymers (GBCPs) from branched macromonomers composed of various combinations of homopolymers is presented. Self‐assembly of GBCPs resulted in ordered nanostructures with ultra‐small domain sizes down to 2.8 nm (half‐pitch). The grafted architecture introduces an additional parameter, the backbone length, which enables control over the thermomechanical properties and processability of the GBCPs independently of their self‐assembled nanostructures. The simple synthetic route to GBCPs and the possibility of using a variety of polymer combinations contribute to the universality of this technique. |
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| Keywords: | graft block copolymers monomer sequences nanostructures polymer architectures thermomechanical properties |
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