NAMS 2002 Workshop - ICOM 2008

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Asymmetric Polymeric Membrane Formation – 1 – Keynote Tuesday July 15, 8:15 AM-9:00 AM, Wai’anae Manipulation of Block Copolymer Nanostructure in Membranes Prepared by Solvent Evaporation and Non-Solvent Induced Phase Separation W. Yave (Speaker), Institute of Polymer Research, GKSS Research Centre Geesthacht GmbH, Germany, Wilfredo.Yave.Rios@gkss.de A. Boschetti-de-Fierro, Institute of Polymer Research, GKSS Research Centre Geesthacht GmbH, Germany V. Garamus, Institute of Materials Research, GKSS Research Centre Geesthacht GmbH, Germany K. Peinemann, Institute of Polymer Research, GKSS Research Centre Geesthacht GmbH, Germany V. Abetz, Institute of Polymer Research, GKSS Research Centre Geesthacht GmbH, Germany P. Simon, Institute of Polymer Research, GKSS Research Centre Geesthacht GmbH, Germany Self-assembly of macromolecular components is considered as a key for the fabrication of periodically nanostructured materials [1]. Block copolymers, having two or more polymer blocks chemically bound to each other have received great attention due to their chemical functionality and physical properties [2, 3]. These copolymers have the ability to self-assemble into microdomains, and the manipulation of these patterns by a variety of physical and chemical methods has been the challenge of many scientists. For membrane technology, block copolymers showing a perpendicular cylindrical structure at the surface combined with the simplicity of membrane preparation is of special interest [4, 5]. In our previous work we combined the self-assembly of a block copolymer with the well established non- solvent induced phase separation technique. An asymmetric membrane with an extremely well ordered top-layer was obtained [5]. After the first works it was noticed that not only the typical parameters as composition of copolymer solution, evaporation time and precipitation conditions are essential for the final membrane structure, but also the age of copolymer solution due to the structure formation in solution. Therefore, we prepared microphase separated films by evaporation of block copolymer solutions, after storing them for different times. Small angle neutron scattering experiments carried out on these solutions indicated structural changes as a function of time. The time dependence on the final nanostructure of the cast films will be discussed. The process described above was then combined with the phase inversion process, and nanostructured asymmetric membranes could be produced. By using block copolymers of different compositions and different casting conditions, the quality of the self-assembly in the top layer could be controlled.
References: [1] Stupp, S. I.; Lebonheur, V. ; Walker, K.; Li, L.S.; Higgins, K.E.; Kesser, M.; Amstutz, A. Science 1997, 276, 384. [2] Bates, F. S. Science 1991, 251, 898. [3] Abetz, V. ed. Block Copolymer I and II Vol. 189 and 190, Springer Publisher Heidelberg (2005). [4] Kim, S.H.; Misner, M.J.; Xu, T.; Kimura, M.; Russell, T.P. Advanced Materials 2004, 16, 226. [5] Peinemann, K.-V.; Abetz, V.; Simon, P.F.W. Nature Materials 2007, 6, 992 .
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ICOM 2008 Oral Presentation Proceed
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Professor Yoram Cohen Professor Joh
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ICOM 2008 Staff: The University of
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ICOM 2008 Workshop Schedule: Saturd
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Monday, July 14 - Afternoon Session
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Tuesday, July 15 - Afternoon Sessio
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8:15AM 8:35AM EMS Barrer Prize (Mau
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Friday, July 18 - Morning Sessions
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Oral Presentation Abstracts Morning
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Gas Separation I - 1 - Keynote Mond
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esulting permeability selectivity o
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chain packing. To ensure a well pha
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Gas Separation I - 5 Monday July 14
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satisfactory way the corresponding
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Drinking and Wastewater Application
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an adjusted water management in the
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prospect for new energy sources as
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oxygen removal to the desired pH. C
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(Cl - , SO4 2- , As(V)) and water t
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[1] R. Lima de Miranda, J. Kruse, K
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Polymeric Membranes I - 4 Monday Ju
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Polymeric Membranes I - 5 Monday Ju
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Biomedical and Biotechnology I - 1
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Acknowledgments The Authors acknowl
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isolation of CD34+ cells was achiev
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membranes were then challenged with
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in crossflow mode operation were in
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hydroxide. For Mg/Ca = 0, the fouli
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improvement of filterability also t
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scale where fouling rates are commo
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observed in two subsequence phenome
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Membrane Modeling I - Fundamental A
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Membrane Modeling I - Fundamental A
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of the impact of the operating para
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Oral Presentation Abstracts Afterno
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Hybrid and Novel Processes I - 2 Mo
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Arora, M.B., J.A. Hestekin, S.W. Sn
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Conclusions Reverse electrodialysis
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energy recovery. This is a remarkab
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eaction with mediator due to the co
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Nanofiltration and Reverse Osmosis
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4.3x10 -6 to 7.4x10 -6 cm 2 /s. Bas
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The development of these membranes
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permeability, defined as water perm
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supports including charged (PSF/SPE
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[4] L. M. Robeson, Journal of Membr
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y conventional polymers and provide
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[3] P.M. Budd, K.J. Msayib, C.E. Ta
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Nanostructured Membranes I - 5 Mond
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Fuel Cells I - 1 Monday July 14, 2:
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investigated at first. As a result,
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Desalination I - 2 Monday July 14,
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Composite Polymeric Membrane Format
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NAMS Alan S. Michaels Award - 1a Tu
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NAMS Alan S. Michaels Award - 2 Tue
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opportunities for improving membran
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NAMS Alan S. Michaels Award - 4b Tu
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NAMS Alan S. Michaels Award - 5 Tue
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Page 173 and 174: than 10 nm. XRD data suggest that t
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Page 215 and 216: concentration. These results are co
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Membrane Fouling - UF & Water Treat
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Membrane Fouling - UF & Water Treat
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Membrane Modeling II - Gas Separati
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[10] Wang BG, Lv HL, Yang JC. Chem
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Membrane and Surface Modification I
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Gas Separation III - 1 - Keynote We
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Gas Separation III - 2 Wednesday Ju
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separation was next blended with di
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Polymeric Membranes II - 1 - Keynot
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Polymeric Membranes II - 3 Wednesda
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5. Erdodi, G.; Kennedy, J. P.; Prog
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observed for different locations in
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Biomedical and Biotechnology II - 3
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applied in the first two fields wil
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distribution of SBMA units within t
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5500 ppm (15 mM) was lowered to 30
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increasing the effective size of th
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etween 0 and 1), the automatic feed
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Membrane Modeling III - Process Sim
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Membrane Modeling III - Process Sim
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models developed suggests that ther
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start level has a huge impact on th
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Ultra- and Microfiltration I - Tran
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all three binary protein UF systems
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Synthetic solutions of ±-lactalbum
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Gas Separation IV - 2 Thursday July
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6. T. C. Merkel, Z. He, I. Pinnau,
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EMS Barrer Prize - 1b Thursday July
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EMS Barrer Prize - 3 Thursday July
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EMS Barrer Prize - 4b Thursday July
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EMS Barrer Prize - 5 Thursday July
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therapy options have been modelled
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Ultra- and Microfiltration II - Pro
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in the vicinity of the rising bubbl
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of feed water ionic strength) on re
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technology that has gained growing
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Optimize polymeric membranes for sa
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Inorganic Membranes II - 2 Thursday
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confirms that the carbon dioxide pe
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permeability, stability issues comp
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Fuel Cells II - 2 Thursday July 17,
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5. Conclusion In this work, the evo
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Oral Presentation Abstracts Afterno
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an essentially pure H2 product is c
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In the presentation, we will presen
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was observed, indicative of the sim
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References Arora, M.B., J.A. Hestek
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performance of fibers is analyzed a
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Membrane Fouling III - RO & Biofoul
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Pervaporation and Vapor Permeation
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[4] H. Noureddini, Book of Abstract
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component (PX, OX) separation via p
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Generally these results were in goo
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introduction of methyl groups into
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separation quality (10 µS/cm) and
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Desalination II - 3 Thursday July 1
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drop are linearly related (although
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antiscalant oxidation has been limi
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oth 15±5 kDa, which suggests that
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Atomic Force Microscopy (AFM), and
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y single gas permeation experiments
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PDMS toplayers were only partially
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noting that cross-linking agents co
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such extended parameter space in th
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Hybrid Membranes - 6 Thursday July
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Plenary Lecture III Friday July 18.
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Gas Separation V - 1 - Keynote Frid
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References: [1] H. Lin, E. Van Wagn
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elative contributions of Fickian di
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Gas Separation V - 4 Friday July 18
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Gas Separation V - 6 Friday July 18
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Electron Microscopy (TEM) analyses
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- Hybrid RO train: A hybrid RO trai
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concentration as well as on the sod
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scaling deposits in the DCMD device
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Silica colloidal solution with diff
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Membrane Fouling IV - RO & Desalina
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Polyacrylonitrile (PAN) UF membrane
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the polymer dope was PEI (12 wt%),
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Inorganic Membranes III - 1 - Keyno
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Inorganic Membranes III - 2 Friday
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CO2/H2 selectivity at high temperat
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ammonia complexes in aqueous soluti
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possible to have a membrane capable
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fired boiler flue gas, SOx and merc
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EPR/Ago/p-benzoquinone composite sh
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elated to the presence of free elec
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surroundings. When the temperature
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that no absorbent was detected in t
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days of filtration from 120 to 7-10
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was performed to restore membrane f
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with the SRT of 65 days, no correla
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Results Critical flux measurements
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MLSS is not directly proportional t
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Fuel Cells III - 2 Friday July 18,
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Fuel Cells III - 4 Friday July 18,
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Ultra- and Microfiltration III - Me
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can be deduced from the imaginary p
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membranes. The analysis of the ligh
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Membrane Contactors - 2 Friday July
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absorption liquid in the pores of t
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Packaging and Barrier Materials - 1
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Historically, all the approaches de
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