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Related Experiment Video

Updated: Jul 16, 2026

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
09:09

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

Defect-free polymer multilayers prepared via chemoselective immobilization.

Mi-Kyoung Park1, Dong-Chan Lee, Yongye Liang

  • 1Department of Chemistry and The James Frank Institute, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, USA.

Langmuir : the ACS Journal of Surfaces and Colloids
|March 6, 2007
PubMed
Summary

This study demonstrates a novel layer-by-layer method using chemoselective ligation to create highly impermeable polymer multilayers. These defect-free films exhibit tunable capacitance, offering precise control over electrochemical properties.

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Polymer Chemistry

Background:

  • Polymer multilayers are crucial for various applications, but creating defect-free films with controlled properties remains challenging.
  • Conventional layer-by-layer assembly methods can lead to imperfections and limited control over film characteristics.

Purpose of the Study:

  • To investigate the electrochemical properties of polymer multilayers fabricated using a novel chemoselective ligation approach.
  • To assess the film integrity, dielectric properties, and defect density of these polymer multilayers.
  • To establish a method for creating highly insulating and defect-free polymer layers with tunable capacitance.

Main Methods:

  • Fabrication of polymer multilayers on gold substrates via layer-by-layer deposition.

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Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
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Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects

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Fabrication of Large-area Free-standing Ultrathin Polymer Films
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Fabrication of Large-area Free-standing Ultrathin Polymer Films

Published on: June 3, 2015

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Last Updated: Jul 16, 2026

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
09:09

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes

Published on: December 15, 2015

Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
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Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects

Published on: June 22, 2019

Fabrication of Large-area Free-standing Ultrathin Polymer Films
10:08

Fabrication of Large-area Free-standing Ultrathin Polymer Films

Published on: June 3, 2015

  • Utilizing chemoselective ligation between aldehyde- and oxyamine-functionalized polymers.
  • Electrochemical impedance spectroscopy (EIS) in buffer solution and with redox species.

    • Main Results:

    • Impedance spectroscopy confirmed the formation of highly impermeable and defect-free polymer films.
    • Dielectric thickness showed a linear increase with the number of deposition layers, indicating tunable capacitance.
    • Faradaic impedance measurements revealed a very low defect area, with surface coverage of 99.99% for eight layers.

    Conclusions:

    • Layer-by-layer deposition via chemoselective ligation is an effective strategy for creating high-quality polymer films.
    • This method allows for precise control over film capacitance by adjusting the number of deposited layers.
    • The resulting polymer layers are highly insulating and defect-free, suitable for advanced electrochemical applications.