“Clicking” graphite oxide sheets with well-defined polystyrenes: A new Strategy to control the layer thickness

Abstract Polystyrene (PS) graft graphite oxide (GO) was synthesized by Cu (I)-catalyzed 1, 3-dipolar cycloaddition (“click” coupling) of azido modified graphite oxide with well-defined, alkyne-terminated polystyrene. This method produced PS blocks graft on GO surface, while ordered layer structure between GO sheets was observed for the first time in GO/Polymer composite. The layered structure was characterized and confirmed by 1D X-ray diffraction (XRD) and atomic force microscopy (AFM), and the layer thickness was observed to be controlled with intercalated PS length between GO layers.

[1]  F. Tuinstra,et al.  Raman Spectrum of Graphite , 1970 .

[2]  Hua-ming Li,et al.  Functionalization of single-walled carbon nanotubes with well-defined polystyrene by "click" coupling. , 2005, Journal of the American Chemical Society.

[3]  P. Auroy,et al.  Synthesis of poly(styrene sulfonate) brushes. , 2001, Journal of the American Chemical Society.

[4]  M. Fang,et al.  Single-layer graphene nanosheets with controlled grafting of polymer chains , 2010 .

[5]  Stephen Z. D. Cheng,et al.  Onsets of Tethered Chain Overcrowding and Highly Stretched Brush Regime via Crystalline-Amorphous Diblock Copolymers , 2006 .

[6]  S. Stankovich,et al.  Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide , 2007 .

[7]  M. Finn,et al.  Click Chemistry: Diverse Chemical Function from a Few Good Reactions. , 2001 .

[8]  Jiachun Feng,et al.  Click chemistry as a route for the immobilization of well-defined polystyrene onto graphene sheets , 2010 .

[9]  G. Wallace,et al.  Processable aqueous dispersions of graphene nanosheets. , 2008, Nature nanotechnology.

[10]  Bin Zhao,et al.  Janus gold nanoparticle with bicompartment polymer brushes templated by polymer single crystals , 2010 .

[11]  Chao Gao,et al.  General Avenue to Individually Dispersed Graphene Oxide-Based Two-Dimensional Molecular Brushes by Free Radical Polymerization , 2011 .

[12]  Jacek Klinowski,et al.  Structure of Graphite Oxide Revisited , 1998 .

[13]  R. Kaner,et al.  Intercalation and exfoliation routes to graphite nanoplatelets , 2005 .

[14]  Andre K. Geim,et al.  The rise of graphene. , 2007, Nature materials.

[15]  B. Appelt,et al.  Characterization of Polystyrenes of Extremely High Molecular Weights , 1980 .

[16]  Frank Simon,et al.  Synthesis of Adaptive Polymer Brushes via “Grafting To” Approach from Melt , 2002 .

[17]  B. Han,et al.  Dispersion of graphene sheets in ionic liquid [bmim][PF6] stabilized by an ionic liquid polymer. , 2010, Chemical communications.

[18]  Stephen Z. D. Cheng,et al.  A new approach in the study of tethered diblock copolymer surface morphology and its tethering density dependence , 2007 .

[19]  Scott M. Grayson,et al.  An efficient route to well-defined macrocyclic polymers via "click" cyclization. , 2006, Journal of the American Chemical Society.

[20]  I. Luzinov,et al.  Polystyrene layers grafted to epoxy-modified silicon surfaces , 2000 .

[21]  Xinglin Yang,et al.  Exfoliated graphite oxide decorated by PDMAEMA chains and polymer particles. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[22]  R. Ruoff,et al.  Graphene-based polymer nanocomposites , 2011 .

[23]  Yanwu Zhu,et al.  Polymer Brushes via Controlled, Surface-Initiated Atom Transfer Radical Polymerization (ATRP) from Graphene Oxide. , 2010, Macromolecular rapid communications.

[24]  Stephen Z. D. Cheng,et al.  Clicking Fullerene with Polymers : Synthesis of [60]Fullerene End-Capped Polystyrene , 2008 .

[25]  Yanchun Han,et al.  Microphase-Separated Brushes on Square Platelets in PS-b-PEO Thin Films. , 2009, Macromolecular rapid communications.