WO2013155453A1 - Membrane en nanotubes de carbone dotée de propriétés modulables - Google Patents

Membrane en nanotubes de carbone dotée de propriétés modulables Download PDF

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Publication number
WO2013155453A1
WO2013155453A1 PCT/US2013/036436 US2013036436W WO2013155453A1 WO 2013155453 A1 WO2013155453 A1 WO 2013155453A1 US 2013036436 W US2013036436 W US 2013036436W WO 2013155453 A1 WO2013155453 A1 WO 2013155453A1
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WO
WIPO (PCT)
Prior art keywords
membrane
membranes
composite
carbon nanotubes
pani
Prior art date
Application number
PCT/US2013/036436
Other languages
English (en)
Inventor
Eric M.V. Hoek
Yaozu LIAO
Richard B. Kaner
Original Assignee
The Regents Of The University Of California
University Of Shanghai For Science And Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by The Regents Of The University Of California, University Of Shanghai For Science And Technology filed Critical The Regents Of The University Of California
Publication of WO2013155453A1 publication Critical patent/WO2013155453A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/021—Carbon
    • B01D71/0212—Carbon nanotubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0048—Inorganic membrane manufacture by sol-gel transition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/72—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 and B01D71/701 - B01D71/702
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/20—Specific permeability or cut-off range

Definitions

  • Also disclosed are methods for compatibilizing carbon nanotubes comprising the steps of: polymerizing aniline in the presence of oxidized carbon nanotubes, thereby forming an oxidized carbon nanotube-templated polyaniline nanofiber composite; and optionally, combining the composite with a matrix polymer.
  • Also disclosed are methods for modifying the conductivity of carbon nanotubes comprising the steps of: polymerizing aniline in the presence of oxidized carbon nanotubes, thereby forming an oxidized carbon nanotube-templated polyaniline nanofiber composite; and optionally, combining the composite with a matrix polymer, wherein the product formed has a pH-dependent conductivity.
  • Figure 2 shows SEM images of (a) purified SWCNTs and (a, inset) raw SWCNTs; (b) SWCNT-templated PANi nanofibers and (c,d) TEM images of SWCNT-templated PANi nanofibers at (c) low and (d) high magnifications.
  • Figure 6 shows SEM images of SWCNT/PANi composite membrane surfaces flash welded the following number of times: (a) 0, (b) 1, (c) 2, (d) 3, (e) 4 and (f) 5 at full power intensity.
  • weight average molecular weight refers to an alternative measure of the molecular weight of a polymer. M w is calculated by: wherein Ni is the number of molecules of molecular weight Mi. Intuitively, if the weight average molecular weight is w, and a random monomer is selected, then the polymer it belongs to will have a weight of w, on average.
  • the weight average molecular weight can be determined by light scattering, small angle neutron scattering (SANS), X-ray scattering, and sedimentation velocity.
  • the conjugated polymer is selected from polyaniline, polythiophene, and polypyrrole. In a further aspect, the conjugated polymer is polyaniline. In a further aspect, the conjugated polymer is produced by chemical oxidative polymerization in the presence of carbon nanotubes. In a further aspect, the conjugated polymer is polyaniline in the dedoped emeraldine oxidation state.
  • the membrane further comprises a polyamide thin film interfacially polymerized on a surface of membrane. That is, in certain aspects, the membranes can be reverse osmosis membranes.
  • a membrane of the invention can have a S1O 2 particle rejection of from about 80% to greater than about 95%.
  • the S1O 2 particle rejection can be from about 80% to about 85%, from about 85% to about 90%, from about 90% to about 95%, or greater than about 95%.
  • membrane shapes are useful and can be provided using the present invention. These include spiral wound, hollow fiber, tubular, or flat sheet type membranes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Selon un aspect, l'invention concerne des membranes de filtration semi-perméables comprenant des composites à base de nanofibres polymères conjuguées sur une matrice en nanotubes de carbone pouvant, par exemple, être utilisées dans des applications d'électro-filtration tangentielle, ainsi que des procédés de fabrication et d'utilisation desdites membranes. L'invention concerne également des procédés de compatibilisation de nanotubes de carbone, des procédés de modification de la conductivité de nanotubes de carbone et des procédés de modulation du flux traversant une membrane de filtration semi-perméable. Le présent abrégé constitue un outil d'étude utilisé à des fins de recherche dans ce domaine particulier et n'est aucunement destiné à limiter la présente invention.
PCT/US2013/036436 2012-04-12 2013-04-12 Membrane en nanotubes de carbone dotée de propriétés modulables WO2013155453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261623531P 2012-04-12 2012-04-12
US61/623,531 2012-04-12

Publications (1)

Publication Number Publication Date
WO2013155453A1 true WO2013155453A1 (fr) 2013-10-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/036436 WO2013155453A1 (fr) 2012-04-12 2013-04-12 Membrane en nanotubes de carbone dotée de propriétés modulables

Country Status (1)

Country Link
WO (1) WO2013155453A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015079442A1 (fr) * 2013-11-28 2015-06-04 B. G. Negev Technologies And Applications Ltd Fabrication et modification de membranes polymères par utilisation d'une impression au jet d'encre
US10265662B2 (en) 2012-10-12 2019-04-23 The Regents Of The University Of California Polyaniline membranes, uses, and methods thereto
US10456755B2 (en) 2013-05-15 2019-10-29 The Regents Of The University Of California Polyaniline membranes formed by phase inversion for forward osmosis applications
US10532328B2 (en) 2014-04-08 2020-01-14 The Regents Of The University Of California Polyaniline-based chlorine resistant hydrophilic filtration membranes
CN114307674A (zh) * 2021-12-28 2022-04-12 北京林业大学 一种基于电致梯级形貌调控的特种亲疏水性膜制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7780875B2 (en) * 2005-01-13 2010-08-24 Cinvention Ag Composite materials containing carbon nanoparticles
US7850798B2 (en) * 2004-10-21 2010-12-14 The Regents Of The University Of California Flash welding of conducting polymer nanofibers
US20110240556A1 (en) * 2008-12-11 2011-10-06 The Regents Of The University Of California Membrane compositions and methods for making and using them

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7850798B2 (en) * 2004-10-21 2010-12-14 The Regents Of The University Of California Flash welding of conducting polymer nanofibers
US7780875B2 (en) * 2005-01-13 2010-08-24 Cinvention Ag Composite materials containing carbon nanoparticles
US20110240556A1 (en) * 2008-12-11 2011-10-06 The Regents Of The University Of California Membrane compositions and methods for making and using them

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10265662B2 (en) 2012-10-12 2019-04-23 The Regents Of The University Of California Polyaniline membranes, uses, and methods thereto
US10780404B2 (en) 2012-10-12 2020-09-22 The Regents Of The University Of California Polyaniline membranes, uses, and methods thereto
US10456755B2 (en) 2013-05-15 2019-10-29 The Regents Of The University Of California Polyaniline membranes formed by phase inversion for forward osmosis applications
WO2015079442A1 (fr) * 2013-11-28 2015-06-04 B. G. Negev Technologies And Applications Ltd Fabrication et modification de membranes polymères par utilisation d'une impression au jet d'encre
US10532328B2 (en) 2014-04-08 2020-01-14 The Regents Of The University Of California Polyaniline-based chlorine resistant hydrophilic filtration membranes
CN114307674A (zh) * 2021-12-28 2022-04-12 北京林业大学 一种基于电致梯级形貌调控的特种亲疏水性膜制备方法
CN114307674B (zh) * 2021-12-28 2022-12-09 北京林业大学 一种基于电致梯级形貌调控的特种亲疏水性膜制备方法

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