摘要

The surface-initiated graft polymerization of polymer brushes attached to an sp(3) random carbon network backbone structure is demonstrated. Poly(ethyl acrylate) (PEA), poly(4-fluorostyrene) (PFS) and poly(acrylonitrile) (PAN) brushes were grafted from the network backbone polymer poly(hydridocarbyne), 1, illustrating the breadth of reactivity of the network backbone. Attachment of polymeric/oligomeric chains to the network backbone was observed through two different methods with different polymer systems. First, selective solvent extraction separated a homogeneous mixture of PEA and 1, dissolving PEA in diethyl ether, but leaving 1 behind as a brown precipitate. In contrast, 1 functionalized with PEA brushes completely dissolved, showing that it was not a homogenous mixture of the substrate and free polymeric chains, but a system of covalently bound polymer chains originating from 1. Formation of short chains of PFS at the surface of 1 allowed the use of (19)F nuclear magnetic resonance to observe the change in resonance shift and shape for the polymer side chains. Solvent extraction was used to demonstrate that tetrahydrofuran (THF) was able to separate a homogeneous mixture of PAN and 1, dissolving 1 in THF, but leaving PAN behind as a white precipitate. Polymer Journal (2010) 42, 298-303; doi:10.1038/pj.2009.343; published online 17 February 2010

  • 出版日期2010-4

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