Electromechanical Response of Lamellar Forming Ionic Diblock Copolymer Thin Films

Details

• Personal Author:
  Fu Y ; Ma M
• Description:
  Electromechanical responses of lamellar forming neutral-charged diblock copolymers (BCPs) in thin films are investigated using coarse-grained molecular dynamics simulations, where the electric permittivity of polymer monomer is described by explicitly introducing freely rotating dipoles. Effects of an applied electric field on the ion transport, morphological change and stress build-up are studied in detail. In particular, we focus on the responses to strong electric fields in terms of the ion dissociation and stress distribution along the film thickness. The different stages of BCP evolution under the electric field are characterized. This work paves a way towards establishing a modeling scheme that describes the response of ionic polymers in the presence of applied electric field. [Description provided by NIOSH]
• Subjects:
  Electricity Occupational Health Polymers Safety
• Keywords:
  Author Keywords: Ionic Block Copolymers Electrical Fields Electric Field Electrochemistry Ion Transport Molecular Dynamics Morphology Thin Film
• ISSN:
  0009-2614
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 3 ; OSHA Region 5 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  778
• NIOSHTIC Number:
  nn:20068075
• Citation:
  Chem Phys Lett 2021 Sep; 778:138817
• Contact Point Address:
  Yao Fu, Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24061, United States
• Email:
  yaof@vt.edu
• Federal Fiscal Year:
  2021
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Chemical Physics Letters
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:22a544b804e7edb200ca0b1656007b65dddafe1f145e6996495eb62914d0af0537f68814b9b6b912fd9d5794e4d26850d98d0f4bbbd5f14df101751b51273179
• Download URL:
  https://stacks.cdc.gov/view/cdc/230294/cdc_230294_DS1.pdf
• File Type:
  [PDF - 7.69 MB ]