WO2005062038A2 - Compose reactif detecteur et/ou absorbeur d'oxygene, procede de preparation d'un tel compose ainsi que dispositif renfermant celui-ci - Google Patents
Compose reactif detecteur et/ou absorbeur d'oxygene, procede de preparation d'un tel compose ainsi que dispositif renfermant celui-ci Download PDFInfo
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- WO2005062038A2 WO2005062038A2 PCT/FR2004/050697 FR2004050697W WO2005062038A2 WO 2005062038 A2 WO2005062038 A2 WO 2005062038A2 FR 2004050697 W FR2004050697 W FR 2004050697W WO 2005062038 A2 WO2005062038 A2 WO 2005062038A2
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- WIPO (PCT)
- Prior art keywords
- support
- reactive compound
- compound according
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- organic
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
- G01N31/225—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for oxygen, e.g. including dissolved oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Definitions
- Reactive compound detector and / or oxygen absorber, process for preparing such a compound as well as device containing it The present invention relates to a reactive compound capable of having two complementary functions, namely on the one hand detecting the presence of oxygen by a clear color change, visible to the naked eye as with a spectrophotometer, and on the other hand chemically and irreversibly absorb the oxygen contained in a closed enclosure.
- Oxygen indicator systems have been extensively described in the literature; they generally use a dye which changes color according to its oxidation level associated with a reducing agent to maintain the reduced form of the dye in the absence of oxygen (documents DE-30 25 264, JP-62 183 834, WO -93/24820, WO- 98/03866 ).
- the oxygen indicator reagent can be in the form of ink (documents DE-30 25 264, JP-62 183 834), included in a thermoplastic (document WO-2003/00557), packed between materials permeable to oxygen (document WO-93/24820) or even included in an amorphous medium (document FR-2 710 751).
- Specialists have at the same time already proposed a wide range of oxygen-absorbing devices which are used in many fields of technology, among which, by way of example, mention may be made of the food industry, in particular for the production of packaging allowing the preservation of foods under an inert atmosphere, the pharmaceutical industry, for the preservation of preparations for medical use, or more generally all areas requiring an atmosphere devoid of oxygen or with a low oxygen content.
- the object of the present invention is to provide a reactive detector and / or oxygen-absorbing compound in which the indicator reagent is irreversibly linked to a solid support, so that it is not liable to be exposed migration phenomena and also obtainable from non-toxic products available commercially.
- This reactive compound is characterized in that it consists of a metallic derivative / ligand color changing complex depending on the degree of oxidation of the metal and connected to the surface of a solid support by a covalent bond.
- the molecular complex is preferably linked to the surface of the support via a derivative of an organic link chain.
- a derivative of an organic link chain contains on the one hand a first grafting function or function allowing its attachment to the support, and on the other hand a second coordinating function or function adapted to achieve coupling with a molecular entity of condensation associated to form the ligand which allows the complexation of the metal derivative.
- the attached figure is an illustrative diagram of the configuration of the reactive compound according to the invention and of its color change following a chemical reaction of the metallic derivative which it contains with oxygen.
- Such a reactive compound is constituted by a complex of metallic derivative 1 / ligand 2 connected to the surface of a support 3 via a derivative of an organic linking chain 4 which in fact constitutes an arm making it possible to fix the functional part 1, 2 of the reactive compound with the support 3.
- the reactive compound according to the invention therefore consists of an organic molecular complex sensitive to oxygen firmly attached by covalent chemical bonds to the surface of a support which retains its mechanical properties but takes on the color of this complex, this color being modified when it is exposed to an atmosphere containing oxygen. The speed of this color change depends on the temperature as well as the partial oxygen pressure and the humidity of the atmosphere considered. Used alone or in combination with other oxygen absorbers, this reactive compound makes it possible to detect the presence of oxygen and to absorb the oxygen present in an enclosure.
- the ligand may advantageously include a heteroatomic chain, optionally substituted, containing two conjugated functional groups and in which at least two nitrogen atoms, one of which belongs to a pyridine ring or the like, are separated by two atoms. carbon.
- a nucleus analogous to a pyridine nucleus can, for example, be a substituted pyridine nucleus or a polycyclic system containing at least one pyridine nucleus.
- the coordination function of the organic link chain is an amine function, in particular a primary amine function.
- the molecular entity of condensation can advantageously consist of 2-pyridine carboxaldehyde, 2-pyridine carboxylic acid or its chloride.
- the ligand therefore consists of a compound resulting from the condensation of 2-pyridine carboxaldehyde, or 2-pyridine carboxylic acid or its chloride with the amino function of the organic link chain.
- Such condensation can indeed lead to the formation of bidentate, tridentate or tetradentate nitrogen ligands capable of complexing many transition metals and their derivatives.
- Such complexes can, in the presence of oxygen, take on an intense color characteristic of the degree of oxidation of the metal.
- the metal derivative must be chosen so that within it, the metal is in a low degree of oxidation and is thus capable of reacting with oxygen.
- the support is an organic polymer support such as polystyrene beads or of a copolymer based on polystyrene and the grafting function of the organic link chain is an alkene function.
- the reactions below constitute three examples of preparation of ligands L1, L2, L3 from organic chains.
- the support is an inorganic support such as beads from an inorganic glass and the grafting function of the organic linking chain is a trialkoxysilane function, in particular trimethoxysilane.
- the support is preferably constituted by an activated metal oxide such as Ti ⁇ 2, ZrO 2 , or preferably Si ⁇ 2 or AI2O3 which correspond to inexpensive oxides, completely free of toxicity and also available commercially under a wide range of quality.
- Such a support can advantageously be in the form of vitreous beads which may have different particle sizes ⁇ for example 60 ⁇ ⁇ 200 ⁇ m or 200 ⁇ ⁇ 500 ⁇ m.
- the organic linking chain can be advantageously chosen from the group formed by 3-aminopropyltrimethoxysilane, N- [3- (trimethoxysilyl) - propoyl] ethylene-diarnine and 3- (2- ( 2-ammo) ethylammo] propyl-trimethoxy-silane
- the invention also relates to a process for the preparation of a reactive compound of the above-mentioned type linked to the surface of an inorganic support. process is characterized in that it comprises the following stages:
- the steps of grafting the organic chain of binding onto the activated support and of in situ synthesis of the ligand are in fact inseparable and can be carried out in one direction or the other, which means that the activated support can be introduced into the reaction medium before or after the molecular entity of condensation.
- the process according to the invention has the advantage of being able to be carried out in air, with the exception of the last metallation step which requires an inert atmosphere, although the reactive compound finally obtained is intended for react with oxygen.
- the grafting of the organic link chain on the activated support and the in situ synthesis of the ligand can be schematized as below :
- the process according to the invention thus makes it possible to obtain an Si-1 chain grafted onto the support, then, after addition of 2-pyridinecarboxaldehyde and stirring using an ultrasonic bath (sonication), an Si compound -2 consisting of the ligand grafted on the support activated by a derivative of the organic chain.
- an Si compound -2 consisting of the ligand grafted on the support activated by a derivative of the organic chain.
- the final metallation step can be shown diagrammatically as below.
- the compounds Si-3 and Si-4 represented below correspond to other examples of structures of grafted complexes in accordance with the invention obtained from organic chains constituted by N- [3- (trim.ethoxysilyl) propoyl] ethylenediamine or 3- [2- (2-amino) ethylammo] propyl-trimethoxysilane.
- Example 1 Activation of the support. 50 g (0.238 mol) of ammonium persulfate are gradually introduced into a Erlenmeyer flask containing one liter of 10 N sulfuric acid, with magnetic stirring. This solution once cooled to 20 ° C is poured into a beaker containing 250 g of silica. After homogenization the silica is left to soak for one hour. After filtration through a b ⁇ chner, the silica is rinsed 5 times with 100 ml of water and then 5 times with 100 ml of distilled water.
- Example 2 Grafting reaction: preparation of Si-2.
- 3-ammopropyltrimethoxysilane (186.5 ⁇ l, 1 mmol) is dissolved in an excess of ethanol (30 ml), then 1 g of activated fine silica is introduced directly into the reaction medium.
- the solution is left to stand at 20 ° C for one hour.
- An equivalent of 2-pyridine carboxaldehyde (96.5 ⁇ l, 1 mmol) is then added to the solution and the reaction mixture is stirred using an ultrasound bath for 30 minutes.
- the grafted ligand (1 g) is suspended in deaerated ethanol (30 ml), then CuCl (99 mg, 1 mmol) is introduced under a stream of argon. The mixture is maintained for 15 minutes with magnetic stirring. After filtration and washing with ethanol (3 times 10 ml), the support is isolated and dried under vacuum (2 h 30 min, 20 ° C) then conditioned under an inert atmosphere.
- Metallation rate 0.76 mmol / g
- Example 5 Metallation reaction of Si-2.
- the grafted ligand (0.200 g) is suspended in a deaerated water / ethanol mixture (50:50, 20 ml), then FeSOt (0.056 g, 0.2 mmol) is introduced under a stream of argon. The mixture is maintained for 15 minutes with magnetic stirring. After filtration and washing with ethanol (3 times 20 ml), the support is isolated and dried under vacuum (2 h 30 min, 20 ° C) then conditioned under an inert atmosphere. Metallation rate: not determined.
- Example 7 Metallation reaction of Si-2.
- Example 9 Grafting reaction: preparation of Si-4.
- a beaker at 20 ° C., 1.85 ml of 3- [2- (2- ami ⁇ oethylammo) ethyla ⁇ nino] propyltrirnethoxysilane, 150 ml of ethanol and 10 g of activated silica are successively introduced.
- the mixture is left to stand for one hour.
- 1 ml of 2-pyridine-carboxaldehyde is added to the solution and the reaction mixture is stirred using an ultrasonic bath for 30 minutes.
- the support is recovered by filtration on B ⁇ chner and rinsed with ethanol (3 times 20 ml), then with ether (3 times 20 ml).
- Example 10 Metallation reaction of Si-3.
- the grafted ligand (1 g) is suspended in deaerated ethanol (30 ml), then CuCl (0.100 g) is introduced under a stream of argon. The mixture is kept for 15 minutes under _-. magnetic agitation. After filtration and washing with ethanol (3 times 10 ml), the support is isolated and then dried under vacuum (2 h 30 min, 20 ° C).
- Metallation rate 0.80 mmol / g.
- Example 11 Metallation reaction of Si-3.
- the grafted ligand (1 g) is suspended in deaerated ethanol (30 ml), then CuCl (0.100 g) is introduced under a stream of argon. The mixture " is maintained for 15 minutes without " magnetic stirring. After filtration and washing with ethanol (3 times 10 ml), the support is isolated and dried under vacuum (2 h 30 min, 20 ° C) then conditioned under an inert atmosphere. Metallation rate: 0.80 mmol / g.
- Example 13 Metallation reaction of Si-4.
- the grafted ligand (1 g) is suspended in deaerated acetone (10 ml), then 0.373 g of [Cu (CH3CN) 4 ] [PF ⁇ ] are introduced under current argon. The mixture is maintained for 15 minutes with magnetic stirring. After filtration and washing with ethanol (3 times 10 ml), the support is isolated and dried under vacuum (2 h 30 min, 20 ° C). Metallation rate: 0.70 mmol / g.
- the present invention also relates to a detector and / or oxygen absorber device containing a reactive compound of the above-mentioned type.
- a detector and / or oxygen absorber device containing a reactive compound of the above-mentioned type.
- Such a device can have various configurations without departing from the scope of the invention and can, for example, consist of printing ink in which the reactive compound is incorporated; one can thus obtain oxychrornic inks which change color in contact with oxygen.
- Such inks are likely to find applications in particular in the field of marketing or education.
- This device can also take the form of absorbers and / or indicators of the presence of oxygen in which the reactive compound can be bonded to a support by an adhesive, or an adhesive with controlled melting temperature (holt melt) or still dispersed in a polymer and then extruded, or else integrated in a sachet, in porous systems or between films permeable to oxygen so as to be in the form of a label.
- This device can also be in the form of packaging sheets which change color when they are brought into contact with an atmosphere containing oxygen gas.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/596,557 US20070152186A1 (en) | 2003-12-18 | 2004-12-15 | Reactive oxygen detecting and/or absorbing compound, method for preparing said compound and a device comprising it |
EP04816551A EP1695076A2 (fr) | 2003-12-18 | 2004-12-15 | Compose reactif detecteur et/ou absorbeur d oxygene, procede de preparation d un tel compose ainsi que dispositif renfermant celui-ci |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0314868A FR2864242B1 (fr) | 2003-12-18 | 2003-12-18 | Compose reactif detecteur et/ou absorbeur d'oxygene, procede de preparation d'un tel compose ainsi que dispositif renfermant celui-ci |
FR0314868 | 2003-12-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2005062038A2 true WO2005062038A2 (fr) | 2005-07-07 |
WO2005062038A3 WO2005062038A3 (fr) | 2006-03-02 |
WO2005062038B1 WO2005062038B1 (fr) | 2006-05-11 |
Family
ID=34630280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/050697 WO2005062038A2 (fr) | 2003-12-18 | 2004-12-15 | Compose reactif detecteur et/ou absorbeur d'oxygene, procede de preparation d'un tel compose ainsi que dispositif renfermant celui-ci |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070152186A1 (fr) |
EP (1) | EP1695076A2 (fr) |
FR (1) | FR2864242B1 (fr) |
WO (1) | WO2005062038A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105860958A (zh) * | 2016-04-01 | 2016-08-17 | 山西大学 | 一种Cu2+化学传感器及其制备方法和应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0283206A2 (fr) * | 1987-03-12 | 1988-09-21 | Hewlett-Packard Company | Polysiloxanes ayant des groupes de marquage liés par des liaisons covalentes |
EP0313655A1 (fr) * | 1986-07-03 | 1989-05-03 | Rikagaku Kenkyusho | Sonde de la mesure de la concentration d'oxygene |
US5030420A (en) * | 1982-12-23 | 1991-07-09 | University Of Virginia Alumni Patents Foundation | Apparatus for oxygen determination |
EP0585212A2 (fr) * | 1992-07-24 | 1994-03-02 | AVL Medical Instruments AG | Membrane de palpeur pour une palpeur optique |
US20030099574A1 (en) * | 2001-08-22 | 2003-05-29 | Bentsen James G. | Fluorescence based oxygen sensor systems |
-
2003
- 2003-12-18 FR FR0314868A patent/FR2864242B1/fr not_active Expired - Fee Related
-
2004
- 2004-12-15 US US10/596,557 patent/US20070152186A1/en not_active Abandoned
- 2004-12-15 WO PCT/FR2004/050697 patent/WO2005062038A2/fr active Application Filing
- 2004-12-15 EP EP04816551A patent/EP1695076A2/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030420A (en) * | 1982-12-23 | 1991-07-09 | University Of Virginia Alumni Patents Foundation | Apparatus for oxygen determination |
EP0313655A1 (fr) * | 1986-07-03 | 1989-05-03 | Rikagaku Kenkyusho | Sonde de la mesure de la concentration d'oxygene |
EP0283206A2 (fr) * | 1987-03-12 | 1988-09-21 | Hewlett-Packard Company | Polysiloxanes ayant des groupes de marquage liés par des liaisons covalentes |
EP0585212A2 (fr) * | 1992-07-24 | 1994-03-02 | AVL Medical Instruments AG | Membrane de palpeur pour une palpeur optique |
US20030099574A1 (en) * | 2001-08-22 | 2003-05-29 | Bentsen James G. | Fluorescence based oxygen sensor systems |
Non-Patent Citations (2)
Title |
---|
ASAI K ET AL: "Mosaic project - summary of phase one program" ICIASF '03 RECORD. 20TH.INTERNATIONAL CONGRESS ON INSTRUMENTATION IN AEROSPACE SIMULATION FACILITIES. DLR GOETTINGEN, GERMANY, AUG. 25 - 29, 2003, INTERNATIONAL CONGRESS ON INSTRUMENTATION IN AEROSPACE SIMULATION FACILITIES, NEW YORK, NY : IEEE, US, 25 août 2003 (2003-08-25), pages 89-94, XP010688530 ISBN: 0-7803-8149-1 * |
SIMPSON T R E ET AL: "SURFACE PLASMON RESONANCE OF SELF-ASSEMBLED PHTHALOCYANINE MONOLAYERS: POSSIBILITIES FOR OPTICAL GAS SENSING" ANALYST, LONDON, GB, vol. 121, octobre 1996 (1996-10), pages 1501-1505, XP008018738 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105860958A (zh) * | 2016-04-01 | 2016-08-17 | 山西大学 | 一种Cu2+化学传感器及其制备方法和应用 |
CN105860958B (zh) * | 2016-04-01 | 2018-07-06 | 山西大学 | 一种Cu2+化学传感器及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
WO2005062038B1 (fr) | 2006-05-11 |
US20070152186A1 (en) | 2007-07-05 |
WO2005062038A3 (fr) | 2006-03-02 |
EP1695076A2 (fr) | 2006-08-30 |
FR2864242B1 (fr) | 2006-05-26 |
FR2864242A1 (fr) | 2005-06-24 |
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