Drag force of polyethyleneglycol in flow measured by a scanning probe microscope

• 日出間, るり

• Hayashi, Seika

• 鈴木, 洋

抄録

We propose a method to measure the drag force due to synthetic polymers in flowing fluids by using a scanning probe microscope (SPM). Methoxy polyethyleneglycol thiol (mPEG-SH) was attached to the cantilever probe of the SPM, which was further immersed in flows of glycerol and polyethyleneglycol (PEG) solutions. The mPEG-SH-bonded cantilever detects the extra force due to polymer-polymer and polymer-fluids interaction in flowing fluids. The conformation of the mPEG-SH polymer bonded to the probe of the cantilever was predicted as having a stem and ellipsoidal-flower shape, and the drag force due to the deformed mPEG-SH was calculated. The forces detected by experiments using the SPM and the forces obtained by model calculations were compared and found to be reasonably close.

収録刊行物

• Physical Review Fluids

  Physical Review Fluids 4 (7), 074201-074201, 2019-07-30

  American Physical Society (APS)

キーワード

• Fluid Flow and Transfer Processes
• Modeling and Simulation
• Computational Mechanics

詳細情報

• CRID: 1050575520346269568
• NII論文ID: 120006713583
• DOI: 10.1103/physrevfluids.4.074201
• ISSN: 2469990X
• HANDLE: 20.500.14094/90006270
• Web Site: https://link.aps.org/article/10.1103/PhysRevFluids.4.074201
• Web Site: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevFluids.4.074201/fulltext
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN