Percolation behavior of gas permeability in rigid-flexible block copolymer membranes. (Record no. 41295)

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fixed length control field 01948nam a2200241Ia 4500
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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625124652.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-6958
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Percolation behavior of gas permeability in rigid-flexible block copolymer membranes.
490 0# - SERIES STATEMENT
Volume/sequential designation Journal of Membrane Science, 177(1-2), p.143-152 , 2002
520 3# - SUMMARY, ETC.
Summary, etc. Transport of permeates through copolymer membranes with rigid and flexible block was investigated based on the percolation concept. In terms of the morphology, the percolation approach provided a rationale for the property of gas permeation behavior of block copolymer consisting of the rigid amideimide block and the flexible siloxane block. The permeability of oxygen through poly(amideimide)siloxane (SPAI)membranes containing different siloxane contents showed a peculiar permeation behavior, indicating that there existed a percolation threshold of the gas permeation at around 0.2-0.3 volume fraction of SPAI. At above the threshold volume fraction, the gas permeability of this block copolymer was proportional to the probability of spanning siloxane phase. We confirmed that an addition of flexible domains in the rigid matrix enhanced the rate of gas permeation, and the permeability of SPAI obeyed a simple power law above and near the percolation threshold. In order to inspect the present system, the percolation concept was reinterpreted to elucidate the change of gas permeability through polymeric membranes with rigid and flexible block.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GAS SEPARATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PERCOLATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PERCOLATION THRESHOLD
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element BLOCK COPOLYMER
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Park, H.B.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ha, S.Y.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lee, Y.M.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1RcSFloWlhjD4phDRHno27GGLO-pbM75q/view?usp=drivesdk">https://drive.google.com/file/d/1RcSFloWlhjD4phDRHno27GGLO-pbM75q/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-6958 25.06.2025 25.06.2025 Documentos solicitados