WO2014069897A1

WO2014069897A1 - Hydrocarbon identification sensor, method for manufacturing same, and application thereof

Info

Publication number: WO2014069897A1
Application number: PCT/KR2013/009738
Authority: WO
Inventors: 김종만; 이찬우; 박동훈
Original assignee: 한양대학교 산학협력단
Priority date: 2012-11-01
Filing date: 2013-10-30
Publication date: 2014-05-08

Abstract

The present invention relates to a hydrocarbon identification sensor, to a method for manufacturing same, and to an application thereof and, more particularly, to a hydrocarbon identification sensor which identifies hydrocarbons by using a swelling hydrocarbon absorbing material or a material presenting color transition or fluorescence due to an external stimulus, to a method for manufacturing same, and to an application thereof. According to the present invention, through the use of the swelling hydrocarbon absorbing material or the material presenting color transition or fluorescence due to an external stimulus, hydrocarbons can be easily identified with the naked eye at anytime and anywhere without expensive and complex equipment. In addition, even a difficult-to-identify constitutional isomer of saturated hydrocarbon structure which defies easy identification can be easily identified. In particular, according to the present invention, kerosene and diesel can be easily identified anytime and anywhere with the naked eye, unlike in identifier adding methods or rarely accessible complex analysis methods which are currently in use to identify kerosene and diesel showing similar petrochemical product characteristics, and thus counterfeit diesel posing a social problem can be detected. Further, according to the present invention, hydrocarbons can be easily and simply identified with the naked eye without expensive and complex equipment, and thus the present invention can be easily used even by the general public.

Description

Specification

Name of invention: hydrocarbon identification sensor, manufacturing method and application

[1] The present invention relates to a hydrocarbon identification sensor, a manufacturing method thereof, and a use thereof.

Specifically, the present invention relates to a hydrocarbon identification sensor for identifying hydrocarbons using a swellable hydrocarbon absorber and an external stimulus that are embolized or exhibited fluorescence, and a manufacturing method and a use thereof.

Background

[2] Hydrocarbons in which the carbon-to-carbon bond is a single bond are called saturated hydrocarbons. Saturated hydrocarbons that can be obtained in the process of fractional distillation of petroleum, which are included in fossil fuels such as petroleum, are very stable and have very low reaction properties, so they are not easy to distinguish. Mass spectrometry, gas chromatography, Professional methods, such as distillation, are used.In addition, when analyzing similar diesel fuels (petroleum-containing kerosene) made of a mixture of kerosene and kerosene, densities are measured, or distillation and gas chromatography columns are used. .

[3] However, these methods can be analyzed only where expensive equipment is needed or where the equipment is equipped. Therefore, there are problems such as limited use of the equipment, learning to use complicated equipment, and long measurement time. weak. These same methods also have the same molecular weight with the same carbon number.

Petroleum consisting of these hydrocarbons is not readily fractionated because the structure is difficult to fractionate from isomers, especially in the case of kerosene and diesel, because the number of carbons contained in the components is not significantly different, which is more difficult to discern today. Small quantities of identifiers are added to kerosene and diesel products to distinguish them.However, the substances used as identifiers are easily removed by activated carbon or clay, and once the identifiers are removed, the petroleum products can only be analyzed using expensive equipment. The general public is difficult to use.

[4] Recent weighting of diesel and biodiesel at LEITE ^ JBERGER GMBH in Germany

Differential gasoline analyzers have been launched, but the analytical equipment itself is expensive and requires a large amount of sample (500 mL) for analysis. The problem lies in the high probability of finding a manufacturing method.

[0005] Japanese Patent No. 3841513 discloses a limiting current hydrocarbon sensor using barium cerium oxide as a solid electrolyte, but it is difficult for the general public to use, and there is a difference from the present invention in the solution.

[6] [Preceding Technical Documents] Japanese Patent No. 3841513

Detailed description of the invention Technical task

[7] In order to solve the above problems, the present invention provides a hydrocarbon identification sensor, a manufacturing method and a use thereof, which can reduce costs and improve working efficiency by making it easy to use in a simple manner without expensive and complicated equipment. problem solving _means,

[8] A hydrocarbon identification sensor manufacturing method according to the present invention is a hydrocarbon having swelling property.

Mixing the diacetylene monomer in the absorbent material (step a); exposing the mixture of step a to photopolymerizing the die acetylene monomer (step b); and mixing the curing agent with the photopolymerized mixture in step b. (Step c).

[9] In addition, another method for producing a hydrocarbon identification sensor according to the present invention comprises the steps of: mixing a diacetylene monomer in a swellable hydrocarbon absorbent (step a; mixing a hardener with a mixture of step a ^' above (step b) ^And photopolymerizing the diacetylene monomer by exposing the mixture of step b ^' (step c').

The swellable hydrocarbon absorber may be polydimethylsiloxane.

The diacetylene monomer may be a compound represented by Chemical Formula i, and preferably PCDA (10,12-Pentacosadiynoic acid).

[12] [Formula 1]

^[13] A- (Li) _d- (CH ₂ ) _e -C≡ CC≡ C- (CH ₂ ) f- (L ₂ ) _g -B

[14] (In Formula 1,

[15] d + g is 0,1 or 2,

[16] e + f is an integer from 2 to 50, e and f are integers of 1 or more,

[17] A and B are methyl group, amine group, carboxyl group, hydroxy group, maleimide group, biotin group, N-hydroxysuccinimide group, benzoic acid group or activated ester group.

[18] L, and may be the same or different from each other, and may include one or more selected from the group consisting of an alkyl group having 2 or more carbon atoms, at least one ethylene oxide group, an amine group, an amide group, an ester group and a carbonyl group. .)

The step a or step a ′ may be performed by mixing a diacetylene monomer in a powder state with a swellable hydrocarbon absorbent or in a swellable hydrocarbon absorbent after dissolving a diacetylene monomer in an organic solvent.

[20] The organic solvent is chloroform, dichloromethane, tetrahydrofuran, benzene,

And one or more selected from the group consisting of toluene, xylene, dimethyl sulfoxide, acetone, ethyl ether and ethyl acetate.

[21] The exposure may be performed by exposing a line of 150 to 350 nm for 1 to 600 seconds or gamma rays.

The exposure is carried out to polymerize the diacetylene monomer. The monomer type is different. As the polymerization degree is different, the diacetylene monomer is properly adjusted by adjusting the exposure time in the above range. Can be polymerized.

The swellable hydrocarbon absorber and the hardener may be combined in a weight ratio of 1: 1 to 10: 1.

[23] According to the present invention, a polydiacetylene is added to a swellable hydrocarbon absorbent.

A fixed hydrocarbon identification sensor can be provided.

The hydrocarbon identification sensor may be in the form of a polymer film.

The swellable hydrocarbon absorber may be polydimethylsiloxane.

[26] The polydiacetylene may be a photopolymerized diacetylene monomer. [27] The diacetylene monomer may be a compound represented by the following Chemical Formula 1.1, preferably PCDA (10,12-Pentacosaciiynoicacicl). .

[28] [Formula 1]

Γ291

A- (Li) _d- (CH ₂ ) _e -C≡ CC≡ C- (CH ₂ ) f- (L ₂ ) _g -B

(In Formula 1,

[31] d + g is 0, 1 or 2,

[32] e + f is an integer from 2 to 50, e and f are integers of 1 or more,

[33] A and B are methyl, amine, carboxyl, hydroxy, maleimide, biotin,

N-hydroxysuccinimide group, benzoic acid group or activated ester group,

[34] L and and may be the same or different, and may include one or more selected from the group consisting of an alkyl group having 2 or more carbon atoms, at least one ethylene oxide group, an amine group, an amide group, an ester group and a carbonyl group. .)

The hydrocarbon identification sensor may be a swellable hydrocarbon absorber that absorbs hydrocarbons and swells to stimulate the immobilized polydiacetylene to exhibit color transition or fluorescence.

The hydrocarbon identification sensor can identify hydrocarbons according to carbon number.

[37] According to another embodiment of the present invention, a swellable hydrocarbon absorber

A method of identifying a hydrocarbon in a sample through a color transition or fluorescence change indicated by the polydiacetylene-immobilized hydrocarbon identification sensor in a container containing a sample; and the hydrocarbon identification sensor absorbing hydrocarbon and swelling. have.

The above method can identify hydrocarbons according to carbon number.

[39] According to the present invention, there may be provided a method of identifying gasoline, diesel and kerosene using the hydrocarbon identification method. In addition, a method of identifying the structural isomers of hydrocarbon using the hydrocarbon identification method may be provided. have.

[40] In other words, the hydrocarbon identification sensor is introduced into a material containing hydrocarbon, and then left for a predetermined time (for example, from 1 second to 60 minutes).

Absorbents (e.g. PDMS) are fixed by absorbing hydrocarbons and swelling Stimulates polydiacetylene, which causes the sensor to transition from blue to red and fluorescence in the red state, where every carbon number of hydrocarbons

There is a difference in the degree of swelling of the PDMS, which causes

The difference in the intensity of the stimulus applied to the polydiacetylene occurs, and the degree of color transition or fluorescence expression varies depending on the carbon number of the hydrocarbon, so that the hydrocarbon can be visually identified according to the carbon number, or branched from hydrocarbons having the same carbon number. Hydrocarbons having a ring shape (structural isomers) also have different degrees of embolism or fluorescence, and thus, the structural isomers of hydrocarbons can be visually identified by the above method.

[41] This principle of operation is applicable to the field of materials consisting of saturated hydrocarbons and, in particular, in petroleum products consisting of saturated hydrocarbons. The petroleum products contain saturated hydrocarbons with 4 to 12 carbons, 9 to 16 kerosene and 14 to 23 carbons. There are differences in the carbon number of hydrocarbons in gasoline, kerosene and diesel. This makes it possible to identify gasoline, kerosene and gasoline using sensors according to the present invention, which can be applied to similar gasoline problems that are a global problem. (In this specification, analogous diesel refers to diesel containing kerosene.) Since kerosene and diesel are not easily distinguished, the largest proportion of the types of manufacturing of analogous diesel is the way of mixing kerosene and diesel. In cases of similar diesel production, it is often unfair to mix kerosene in the range of about 30 to 80%, but it is difficult for diesel consumers to find out whether their products are genuine or similar. By using the hydrocarbon identification sensor according to the present invention, the above-described and the above-mentioned, ordinary consumers can easily identify whether or not via similarity.

[42] In general, methods for differentiating saturated hydrocarbons are available only in limited locations equipped with expensive and complex equipment, and have the same number of carbons, making it difficult to discern molecular formulas from the isomers.

Similarly, hydrocarbons made from hydrocarbons have a difficult problem to identify, especially in the case of kerosene and diesel, because the carbon number of the components is not so different that it is very difficult to identify them. To this end, the present invention uses a material that swells as it absorbs hydrocarbons and a substance that has embolism or fluorescence expression characteristics by the swelling, so that the hydrocarbon can be identified in a very simple manner according to the difference between the degree of swelling, color change, and fluorescence expression. Thus, according to the present invention, the petroleum products such as gasoline, kerosene and diesel can be identified, and the detection of similar diesel fuels (kerosene containing kerosene) is also a social problem.

Effects of the Invention

[43] According to the present invention, the color shift is caused by a swellable hydrocarbon absorber and external stimulation. Alternatively, it is possible to easily identify hydrocarbons with the naked eye anywhere without expensive and complicated equipment by using fluorescence-representing materials.In addition, the structure of difficult-to-identify saturated hydrocarbons is easily identified, especially according to the present invention. Unlike the existing methods for adding kerosene and diesel that have similar characteristics, or the complex analysis method that is difficult to access, it is easy to identify the kerosene and diesel via the naked eye at any time, so that it is easy to use socially similar diesel. Can be detected.

[44] In addition, according to the present invention, hydrocarbons can be visually identified in a simple manner without expensive and complicated equipment, and thus can be easily used by the general public.

Brief description of the drawings

1 shows the color of the hydrocarbon identification sensor according to the present invention as it absorbs hydrocarbons.

Visual observation of metastasis.

FIG. 2 and FIG. 3 show the results of FIG. 1 analyzed by Photoshop, and FIG. 4 and FIG. 5 show the origin.

FIG. 6 shows visual observation results (a) and origin analysis results (b) of a hydrocarbon identification sensor indicating a color transition by absorbing hydrocarbons.

7 illustrates the color transition phenomenon of the hydrocarbon identification sensor absorbing hydrocarbons.

Analyzed by the visible light absorption spectrum.

8 is shown _. By using a hydrocarbon identification sensor according to the invention,

Results of identifying structural isomers (n-octane / isooctane) are shown. (Visual observation) [50] Figure 9 is a view of the octane using a hydrocarbon identification sensor according to the present invention.

This is the result of identifying the structural isomer ( _n -octane / isooctane). (Analyze with origin)

FIG. 10 is a view illustrating octane using a hydrocarbon identification sensor according to the present invention.

Results of identification of structural isomers (n-octane / isooctane / cyclooctane). (Analysis with origin)

FIG. 1 i illustrates the analysis of oil using a hydrocarbon identification sensor according to the present invention.

((a) is visual observation result, (b) origin analysis result)

FIG. 12 is a visual observation of embolism between genuine kerosene and genuine diesel oil identified by a hydrocarbon identification sensor according to the present invention.

FIG. 13 is a graph illustrating the metabolic phenomena of gas oils based on the addition of kerosene identified by a hydrocarbon identification sensor according to the present invention. ((a) is the result of visual observation, (b) is the result of origin analysis)

Mode for Carrying Out the Invention

Hereinafter, the present invention will be described in more detail with reference to examples. The objects, features, and advantages of the present invention will be easily understood by the following examples. The present invention is not limited to the embodiments described herein. Can be embodied in other forms, where The embodiments described are provided so that the disclosure may be made thorough and complete, and that the concept of the present invention may be sufficiently transmitted to those skilled in the art to which the present invention pertains. The present invention should not be limited by these fields.

Example 56 Manufacture of Hydrocarbon Identification Sensor

[57] Materials that can swell hydrocarbons or petroleum products

Polydimethylsiloxane (PDMS) is used, and materials that exhibit color transition or fluorescence _on - ₀ ff characteristics due to changes in the external environment are characterized by changes in color from blue to red or fluorescence.

Polydiacetylene was used to perform PCD A (10,12-Pentacosadynoic acid) among several diacetylene monomers.

[58] PDMS Dow Corning's product delivers transparency and transparency

Genie uses Sylgard 184. This product consists of a base and a hardener, and this product has a characteristic of hardening when mixed in a ratio of 10: 1 (base: hardener).

[59] The manufacturing method of the sensor was carried out as follows. 20 g of PDMS base was placed in a container, and 50 mg of PCDA monomer was dissolved in 2 mL of chloroform to prepare a solution. The solution was placed in the PDMS base so that all of the chloroform could evaporate.

The mixture was mixed for 10 minutes. Next, in order to polymerize the PCDA monomers, it was exposed to 254 ultraviolet rays for 1 minute to make blue polydiacetylene (PDA). In this state, it was not cured and became a highly viscous liquid. In order to harden the PDMS, to make it more useful solid form, 2 g of PDMS hardener was added and mixed well. Then, the square petidish was cured at room temperature for 2 days to give a blue transparent film form. A hydrocarbon identification sensor was fabricated.

[60] Test Example 1 Performance Evaluation of Hydrocarbon Identification Sensor 1

The hydrocarbon identification sensor manufactured according to the example was cut to a size of 1 cm X 2 cm and the following experiment was carried out. Saturated hydrocarbon of tetradecane (C _I4 H ₃₀ ) having 5 carbon atoms (H _I2 ) to 14 carbon atoms was carried out. 4 mL of each hydrocarbon was placed in a transparent vessel (4 mL vial) to check the degree of swelling and discoloration of the sensor. Then, the sensor was placed in the transparent vessel (4 mL vial) and observed. The results are shown in Fig. 1. The smaller the carbon number, the faster the sensor swelled, and the faster the color change time appeared. The difference between the swelling degree and the color of each hydrocarbon was visible to the naked eye. Confirmed.

[62] To show this numerically, the photographs were analyzed using Photoshop, a photo editing program. The data of the red (R) values were extracted by extracting the color (R, G, B) values in the middle of the sensor. The analysis and the results are shown in Figure 2. The picture was edited with a red channel to measure the degree of redness caused by swelling. The conversion to black and white is shown in Fig. 3. (The brighter the intensity of red is, the darker the intensity of red is.) In addition, the red value and swelling intensity are numerically displayed using the Origin program, and are shown in Figs. 4 and 5. According to the results of the analysis of the red intensity according to the interval of 5 minutes, Figure 5 is the result of analyzing the red intensity and swelling after 5 minutes after the start of the experiment ᅳ converted to 100% when the red (R) value is 255. As shown in ˜5, the lower the carbon number, the higher the swelling degree and the red value. A different color change was shown according to the carbon number. According to one embodiment of the present invention, hydrocarbons may be identified according to the carbon number.

[63] Among the results of the analysis, 5, 7, and 9 carbon atoms each contained saturated hydrocarbons.

The degree of discoloration is shown in Figure 6 so that the performance of the hydrocarbon identification sensor can be compared more easily. Figure 6 (a) shows a photograph of a sensor that has passed five minutes since it was placed in a container containing hydrocarbons. Fig. 6 (b) is a graph showing numerical values of red values using an Origin program. When the red (R) value is 255, it is expressed as 100%. As described above, the color transition results differently depending on the carbon number, so it can be easily confirmed by the naked eye. The lower the carbon number, the closer to red color is. The intensity of red was high.

Test Example 2: Visible Light Absorption Spectrum Analysis

[65] A transparent vessel containing each of the hydrocarbons in order to check the degree of swelling and discoloration of the sensor by using saturated hydrocarbons of tetradecane (C _I4 H ₃₀ ) having 5 to 14 carbon atoms (C ₅ Hp ᅳ). 4 mL vial) was added. The hydrocarbon identification sensor, prepared according to the following example, was placed in a transparent container (4 mL vial) in a size of 1 cm X 2 cm and observed. The color transition phenomenon after 5 minutes was observed as a visible light absorption spectrum. The results of the analysis are shown in Fig. 7. The results showed different color transitions according to the number of carbons, and the smaller the carbon number, the closer to red color.

[66] Test Example 3 Performance Evaluation of Hydrocarbon Identification Sensors 2 Structural Isomer Identification

[67] Branched η-octane and branched isooctane in clear containers (4 mL vial)

The hydrocarbon identification sensor manufactured according to the following example was placed in the transparent container (4 mL vial) in a size of 1 cm x 2 cm. The result was observed after 3 minutes and the embolism was observed. The visual observation (FIG. 8) confirmed that n-octane and isooctane were transferred to different colors. N-octane without branches was closer to red and higher red intensity was also found in the original analysis (Fig. 9).

[68] Branched n-octane, branched isooctane, and ring isomers

Cyclooctane was placed in a transparent vessel (4 mL vial) at 4 mL. A hydrocarbon identification sensor prepared according to the following example was placed in the transparent vessel (4 mL vial) in a size of 1 cm X 2 cm and observed. The phenomena were analyzed by Origin program and the results are shown in FIG. [69] Branch-free n-octane swelled first, followed by swelling in the order of isooctane and cyclooctane, followed by n-octane in red intensity, followed by isooctane and cyclooctane sequence. Structural isomers resulted in different color transitions. The hydrocarbon identification sensor according to the present invention enables the identification of structural isomers of hydrocarbons.

Test Example 3: Performance Evaluation of Hydrocarbon Identification Sensor 3-Oil Identification

4 mL of gasoline, kerosene and diesel oil were placed in a transparent container (4 mL vial). The hydrocarbon identification sensor manufactured according to the following example was placed in the transparent container (4 mL vial) in a size of lcmx2cm and observed. Observation of the embolism afterwards is shown in Fig. 1. Visual observation result ( _a ) and analysis by Origin program (b). Visual observation, gasoline with the lowest carbon number. The highest degree of swelling was found in, followed by the closest color to red, and the result of the kerosene and diesel order. The analysis by the Origin program showed the highest red strength in gasoline with the lowest carbon number. (AU: Arbitrary Unit), followed by kerosene and diesel order. Gasoline, kerosene, and diesel showed different color transition results. The hydrocarbon identification sensor according to the present invention is used to identify gasoline, diesel and kerosene. discrimination It is possible eu

[72] Test Example 4 Performance Evaluation of Hydrocarbon Identification Sensor

[73] Test Example 4-1

[74] 4 mL of kerosene and genuine diesel oil were placed in a transparent container (4 mL vial). The hydrocarbon identification sensor manufactured according to the following example was placed in the transparent container (4 mL vial) using a size of 1 cm X 2 cm. Observation of the phenomenon-the swelling behavior and color transfer results observed for 5 minutes-is shown in Figure 12. As shown in Figure 12, the visual observation, it was confirmed that the genuine diesel and genuine kerosene different colors.

[75] Test Example 4-2

[76] Transparent oils, containing 0% kerosene, 25%, 50%, 75%, 100% kerosene

4 mL each was placed in a container (4 mL vial). Then, a hydrocarbon identification sensor manufactured according to the above example was placed in the transparent container (4 mL vial) with an H of 2 cm 2 cm, and color transition was observed. As shown in Fig. 13 (a), the visual observation shows that there may be a lot of kerosene in the genuine diesel oil, and there is a lot of color transition from blue to red. In particular, 25% of kerosene is contained. In comparison with the case of genuine gasoline, the case of genuine gasoline is blue, whereas if it contains 25% of kerosene, the metabolism occurs or it is very blue, and it is confirmed that the oil is mixed with gasoline. As shown in (b), the analysis by the Origin program shows the highest red intensity (unit: AU, Arbitrary Unit) in the kerosene with the lowest carbon number, and the higher the kerosene additive, the higher the red intensity. Showed a tendency Therefore, the hydrocarbon identification sensor according to the present invention can be used not only to distinguish between kerosene and diesel, Mixed with kerosene

It's easy to identify.

Claims

Claim

[Claim 1] Diacetylene monomer was added to a swellable hydrocarbon absorbent.

Matching (step a);

Exposing the mixture of step a to photopolymerize the diacetylene monomer (step b); and

A method of manufacturing a hydrocarbon identification sensor, comprising the step (step c) of mixing a hardener with the photopolymerized mixture in step b.

[Claim 2] Incorporating a diacetylene monomer into the swellable hydrocarbon absorber (step a ^' );

A method of manufacturing a hydrocarbon identification sensor comprising: mixing a hardener to a complex of step a '(step b'); and exposing the complex of step b ^' to photopolymerization of a diacetylene monomer (step c ^' ).

[Claim 3] In Claim 1 or Claim 2,

Hydrocarbon identification sensor manufacturing method characterized in that the swellable hydrocarbon absorber is polydimethylsiloxane.

Claim 4 The method of claim 1 or claim 2,

A method for producing a hydrocarbon identification sensor, characterized in that the diacetylene monomer is a compound represented by the following formula (1).

[Formula 1]

A- (Li) _d- (CH ₂ ) _e -C≡CC≡C- (CH ₂ ) _f- (L ₂ ) _g — B

(In Formula i,

d + g is 0, 1 or 2,

e + f is an integer from 2 to 50, e and f are integers of 1 or more,

A and B are methyl group, amine group, carboxyl group, hydroxy group, maleimide group, biotin group, Ν-hydroxysuccinimide group, benzoic acid group or activated ester group,

L, and 1 ^ may be the same or different and may include one or more selected from the group consisting of an alkyl group having 2 or more carbon atoms, one or more ethylene oxide groups, amine groups, amide groups, ester groups and carbonyl groups. )

Claim 5 The method according to claim 1 or claim 2,

The step of mixing a diacetylene monomer in the swellable hydrocarbon absorber,

After mixing diacetylene monomer in a powder state or dissolving the diacetylene monomer in an organic solvent in a swellable hydrocarbon absorbent material. A method of manufacturing a hydrocarbon identification sensor, characterized in that it is carried out in a manner compatible with swellable hydrocarbon absorbers.

Claim 6 The method according to claim 5,

The organic solvent is a hydrocarbon identification sensor, characterized in that it comprises one or more selected from the group consisting of chloroform, dichloromethane, tetrahydrofuran, benzene, roluene, xylene, dimethyl sulfoxide, acetone, ethyl ether and ethyl acetate. Way.

Claim 7 The method of claim 1 or claim 2,

The exposure is performed by the method of exposing ultraviolet rays of 150-350 nm for 1 to 600 seconds or exposing gamma rays.

Claim 8 The method according to claim 1 or claim 2,

And a swellable hydrocarbon absorbent and a hardener are mixed in a weight ratio of 1: 1 to 10: 1.

[Claim 9] A hydrocarbon identification sensor in which polydiacetylene is immobilized on a swellable hydrocarbon absorbent.

[Claim 10] In Claim 9,

The hydrocarbon identification sensor is a hydrocarbon identification sensor characterized in that it is in the form of a polymer film.

Claim 11 The method of claim 9, wherein

The hydrocarbon identification sensor, characterized in that the swellable hydrocarbon absorber is polydimethylsiloxane.

Claim 12 The method of claim 9,

The polydiacetylene is a hydrocarbon identification sensor, characterized in that the diacetylene monomer is photopolymerized.

[Claim 13] In Claim 12,

Hydrocarbon identification sensor, characterized in that the diacetylene monomer is a compound represented by the following formula (1).

[Formula 1]

A- (Li) _d- (CH ₂ ) _e -C≡CC≡C- (CH ₂ ) f- (L ₂ ) _g -B

(In Formula l,

d + g is 0, 1 or 2,

e + f is an integer from 2 to 50, e and f are integers of 1 or more,

A and B are methyl group, amine group, carboxyl group, hydroxy group, maleimide group, biotin group, Ν-hydroxysuccinimide group, benzoic acid group or activated ester group, L, and L ₂ are the same as or different from each other, and have 2 carbon atoms.

It may include one or more selected from the group consisting of at least an alkyl group, at least one ethylene oxide group, an amine group, an amide group, an ester group and a carbonyl group.

Claim 14 The method according to claim 9,

The hydrocarbon identification sensor is a hydrocarbon identification sensor, characterized in that the swellable hydrocarbon absorber absorbs hydrocarbons and swells, thereby stimulating the polydiacetylene immobilized to represent embolization or fluorescence.

Claim 15 The method of claim 9,

The hydrocarbon identification sensor is a hydrocarbon identification sensor, characterized in that to identify the hydrocarbon in accordance with the carbon number.

[Claim 16] Injecting a polydiacetylene-immobilized hydrocarbon identification-sensor into a container containing a sample in a swellable hydrocarbon absorbent; and a color transition or fluorescence change indicated by the hydrocarbon identification sensor absorbing hydrocarbons and swelling. To identify hydrocarbons in samples

[Claim 17] Gasoline, diesel and diesel using the hydrocarbon identification method of claim 16

How to identify kerosene.

Claim 18 A method for detecting similar diesel fuel containing kerosene using the hydrocarbon identification method of claim 16.

19. A method for identifying structural isomers of hydrocarbons using the hydrocarbon identification method of claim 16.