NAMS 2002 Workshop - ICOM 2008

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Oral Presentation Abstracts Afternoon Session Tuesday, July 15, <strong>2008</strong>
Gas Separation II – 1 – Keynote Tuesday July 15, 2:15 PM-3:00 PM, Kaua’i Highly Gas-Permeable Substituted Polyacetylenes: Recent Advances T. Masuda (Speaker), Kyoto University, Kyoto, Japan - masuda@adv.polym.kyoto-u.ac.jp Polyacetylenes having various substituents (substituted polyacetylenes) can be synthesized by use of metathesis catalysts (W, Mo, Ta, and Nb) [1-3]. Among those polymers, poly[1-(trimethylsilyl)-1-propyne] [poly(TMSP)] exhibits higher gas permeability than any known synthetic polymers. Its oxygen permeability coefficient (Po2) varies depending on preparation and measuring conditions, but its typical value is ca. 10,000 barrers at 25 °C [4,5]. In-depth reviews of poly(TMSP) are available [1,3,5]. Apart from poly(TMSP), pretty many substituted polyacetylenes are now known to be more gas-permeable than poly(dimethylsiloxane), the most permeable commercial membrane material. One of them is poly[1-phenyl-2-(ptrimethylsilylphenyl)acetylene] [poly(p-Me3Si-DPA)] [6], whose oxygen permeability is around 1,500 barrers. More, recently, the polymerization of 1-(1,1,3,3-tetramethylindan-5-yl)-2phenylacetylene (1), 1-(1,1,2,2,3,3-hexamethylindan-5-yl)-2-phenylacetylene (2), and 1-(1,1,4,4-tetramethyl-1,2,3,4-tetrahydronaphthalene-6-yl)-2-phenylacetylene (3) was carried out with TaCl5-n-Bu4Sn catalyst [7]. All the monomers gave high molecular weight polymers (Mw ~1,000,000) in good yields. The formed polymers were soluble in common solvents including cyclohexane, toluene, CHCl3, and THF. Free-standing membranes of poly(1) -poly(3) were fabricated by casting toluene solution. According to thermogravimetric analysis (TGA) measured in air, these polymers exhibited excellent thermal stability (T0 ~400 °C). The membranes of these polymers showed extremely high gas permeability (Po2 4,000-14,000 barrers); especially the Po2 value of poly(1) reached 14,000 barrers. The PO2/PN2 ratios were in a range of 1.24-1.44. Derivatives 4-6 of monomer 1 that have a para-halo-substituent [1-(1,1,3,3tetramethylindan-5-yl)-2-(4-X-phenyl)acetylenes; 1: X = H, 4: X = F, 5: X = Cl, 6: X = Br] were polymerized with TaCl5-n-Bu4Sn catalyst to give high molecular weight polymers (Mw ~1,000,0000) in moderate yields [8]. Poly(4) -poly(6) were soluble in common organic solvents, and gave free-standing membranes by solution casting. These polymers possessed excellent thermal stability according to TGA (T0 ~410 °C). The membranes of these polymers displayed high gas permeability (Po2 5,000-17,900 barrers). In particular, the oxygen permeability of
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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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[4] K. Vanherck et al. Accepted for
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accumulation had a strong effect on
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and, if so, to develop correlations
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non-porous and porous membranes are
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Page 173 and 174: than 10 nm. XRD data suggest that t
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Page 197 and 198: References: [1] Stupp, S. I.; Lebon
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Page 215 and 216: concentration. These results are co
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Page 233 and 234: Inorganic Membranes I - 3 Tuesday J
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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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