From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates

Oded, Meirav; Kelly, Stephen T.; Gilles, Mary K.; Müller, Axel H. E.; Shenhar, Roy

doi:10.1016/j.polymer.2016.07.016

Title: From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates

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Abstract

The combination of block copolymer templating with electrostatic self-assembly provides a simple and robust method for creating nano-patterned polyelectrolyte multilayers over large areas. The deposition of the first polyelectrolyte layer provides important insights on the initial stages of multilayer buildup. Here, we focus on two-dimensionally confined “dots” patterns afforded by block copolymer films featuring hexagonally-packed cylinders that are oriented normal to the substrate. Rendering the cylinder caps positively charged enables the selective deposition of negatively charged polyelectrolytes on them under salt-free conditions. The initially formed polyelectrolyte nanostructures adopt a toroidal (“doughnut”) shape, which results from retraction of dangling polyelectrolyte segments into the “dots” upon drying. With increasing exposure time to the polyelectrolyte solution, the final shape of the deposited polyelectrolyte transitions from a doughnut to a hemisphere. In conclusion, these insights would enable the creation of patterned polyelectrolyte multilayers with increased control over adsorption selectivity of the additional incoming polyelectrolytes.

Authors:

Oded, Meirav ^[1]; Kelly, Stephen T. ^[2]; Gilles, Mary K. ^[2]; Müller, Axel H. E. ^[3];

^[1]

Hebrew Univ. of Jerusalem (Israel). Inst. of Chemistry and the Center for Nanoscience and Nanotechnology
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
Johannes Gutenberg Univ., Mainz (Germany). Inst. of Organic Chemistry

Publication Date:: Tue Jul 05 00:00:00 EDT 2016

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1379617

Alternate Identifier(s):: OSTI ID: 1396467

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Polymer

Additional Journal Information:: Journal Volume: 107; Journal Issue: C; Journal ID: ISSN 0032-3861

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Block copolymers; Layer-by-layer deposition; Patterning; Polyelectrolytes; Self-assembly

Citation Formats


                    Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., and Shenhar, Roy. From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates.  United States: N. p., 2016. 
Web.  doi:10.1016/j.polymer.2016.07.016.

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                    Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., & Shenhar, Roy. From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates.  United States.  https://doi.org/10.1016/j.polymer.2016.07.016

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                    Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., and Shenhar, Roy. Tue .  
"From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates".  United States.  https://doi.org/10.1016/j.polymer.2016.07.016.  https://www.osti.gov/servlets/purl/1379617.

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@article{osti_1379617,

  title        = {From dots to doughnuts: Two-dimensionally confined deposition of polyelectrolytes on block copolymer templates},

  author       = {Oded, Meirav and Kelly, Stephen T. and Gilles, Mary K. and Müller, Axel H. E. and Shenhar, Roy},

  abstractNote = {The combination of block copolymer templating with electrostatic self-assembly provides a simple and robust method for creating nano-patterned polyelectrolyte multilayers over large areas. The deposition of the first polyelectrolyte layer provides important insights on the initial stages of multilayer buildup. Here, we focus on two-dimensionally confined “dots” patterns afforded by block copolymer films featuring hexagonally-packed cylinders that are oriented normal to the substrate. Rendering the cylinder caps positively charged enables the selective deposition of negatively charged polyelectrolytes on them under salt-free conditions. The initially formed polyelectrolyte nanostructures adopt a toroidal (“doughnut”) shape, which results from retraction of dangling polyelectrolyte segments into the “dots” upon drying. With increasing exposure time to the polyelectrolyte solution, the final shape of the deposited polyelectrolyte transitions from a doughnut to a hemisphere. In conclusion, these insights would enable the creation of patterned polyelectrolyte multilayers with increased control over adsorption selectivity of the additional incoming polyelectrolytes.},

  doi          = {10.1016/j.polymer.2016.07.016},

  journal      = {Polymer},

  number       = C,

  volume       = 107,

  place        = {United States},

  year         = {Tue Jul 05 00:00:00 EDT 2016},

  month        = {Tue Jul 05 00:00:00 EDT 2016}

}

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