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  • 2013 KSDF 1229-0033/2013-03/70-74

    ISSN(Print) 1229-0033 http://dx.doi.org/10.5764/TCF.2013.25.1.70ISSN(Online) 2234-036X Textile Coloration and Finishing Vol.25,No.1

    ( )

    70

    1.

    , ,

    , , ,

    1-5) .

    , , Zwitterion

    MLCT(Metal to Ligand Charge

    Trasfer), ICT(Intramolecular Charge

    Transfer CT) 6-9) .

    ,

    .

    (VOCs, Volatile organic com-

    Corresponding author: Jun-Hee Lee (dyejun@dyetec.or.kr)Tel.: +82-53-350-3754 Fax.: +82-53-350-3818

    pounds)

    ,

    .

    ,

    10,11)

    2-chloro-3,5-dinitro-benzotrifluoride 4-chloro-3,

    5-dinitro-benzotrifluoride 12)

    , ,

    .

    2.

    2.1

    2-chloro-3,5-dinitro-benzotrifluoride,99%(Compound1) 4-chloro-3,5-dinitro-benzotrifluoride,

    9 9%(Compound2) ALDRICH N,N-

    Abstract: For amine gas detection, we incorporated two well-known isomers, 2-chloro-3,5-dinitro-benzotrifluoride and4-chloro-3,5-dinitro-benzotrifluoride, in polyurethanes. Nanoweb and thin film were prepared by electrospinning andlamination, respectively, in order to compare their sensing behaviors. Moreover, we studied photophysical property usingUV-Vis spectrometer and observed surface area through scanning electron microscope to compare between the Nanoweband thin film. We found out that nanowebs exhibited high sensitivity specifically to primary amine gas.

    Keywords: amine detecting, nano web, laminating, film, VOCs

    DYETEC

    Amine Gases Detecting Studies using the Compoundson the Urethane Nano Web and Laminating Film

    Jun-Hee Lee, Hye-Ji Seo, Yoo-Jung Kang and Do-Hyun Lee

    Korea Dyeing & Finishing Technology Institute, Daegu, Korea

    (Received: February 27, 2013 / Revised: March 12, 2013 / Accepted: March 18, 2013)

  • 71

    Textile Coloration and Finishing(J. Korean Soc. Dye. and Finish.), Vol. 25, No. 1

    Dimethyl Formamide(DMF), Toluene, Methylethyfetione (MEK) DUKSAN .

    JUNSEI 70% solution in water, , GAS . Urethane(1108) ( )

    Brookfield ViscometerProII .

    HP 8435 UV-vis spectrometer.

    eS-robot MATHIS Tenter

    (LTE-S) .

    (SEM) .

    2.2

    Urethane(1108) 50g Com-pound1 2.5g DMF

    1200cp . 10

    , 15cm 1 20 , 200rpm .

    DMF , MEK 4200cp . LTE-S 0.3mm 120 3 .

    Compound2 Compound1 .

    F

    F

    F

    N+ O

    O-

    N+ O

    O-

    Cl

    2-chloro-3,5-dinitro-benzotrifluoride

    F

    F

    F

    N+ O

    -O

    N+

    O

    O-

    Cl

    4-chloro-3,5-dinitro-benzotrifluoride

    Scheme 1. Chemical structure of compound1(left) and compound2(right)

    3.

    DMF 100 Figure 1 Figure 2.

    Wavelength(nm)340 360 380 400 420 440 460 480 500

    Abso

    rban

    ce0.0

    0.2

    0.4

    0.6

    0.8

    1.0

    1.2

    1.4 StandardEthylamineDiethylamineTriethylamine

    Figure 1. Absorption spectra change of compound1 towardeach amine solution(110-4 M) in DMF.

    Wavelength(nm)350 400 450 500 550 600

    Abso

    rban

    ce

    0.0

    0.2

    0.4

    0.6

    0.8

    1.0

    1.2

    1.4

    1.6

    1.8StandardEthylamineDiethylamineTriethylamine

    Figure 2. Absorption spectra change of compound2 towardeach amine solution(110-4 M) in DMF.

  • 72

    25 1

    Compound1 Compound2 Scheme

    (ortho) (para)(meta) (nitro)

    n-* . Compound2 Com-

    pound1 Compound2 n-*

    Compound1 .

    110-4 M , Compound1

    Compound2 . Compound1 Compound2

    Compound1 426nm , , Compound2 Com-

    pound1 350nm . Compound Com-

    pound Compound (Intermolecular Charge Transfer) .

    0.03mm .

    DMF

    (Figure 3). Figure 1cm

    . Figure Compound1

    1 .

    .

    Figure 3. The synthesized nano web including compound1(left) and colorimetric changing by ethylamine gas(right).

    Fig ure 1 450nm . Compound2

    .

    Compound

    , Compound2 Compound1

    . Compound1

    , , 50 Figure 4 .

    Ethylamine Diethylamine Triethylamine

    Peak

    dia

    met

    er(c

    m)

    0.0

    0.2

    0.4

    0.6

    0.8

    Figure 4. Generated red spot diameter of compound nanoweb toward amine gases(average 50 times).

  • 73

    Textile Coloration and Finishing(J. Korean Soc. Dye. and Finish.), Vol. 25, No. 1

    Figure 4

    .

    . Compound 0.03mm

    . Compound2 Compound1

    (Figure 5).

    Figure 6 .

    Figure 5. The synthesized laminating film(0.3mm) includingcompound1(left) and colorimetric changing by ethylaminegas(right).

    Ethylamine Diethylamine Triethylamine

    Peak

    dia

    met

    er(c

    m)

    0.0

    0.1

    0.2

    0.3

    0.4

    0.5

    Figure 6. Generated red spot diameter of compound lami-nating film toward amine gases(average 50 times).

    (Figure 6 ).

    .

    SEM Figure 7 . Figure

    .

    Figure 7. SEM Images of compound1 nano web(upper)and laminating film(lower).

    4.

    2-chloro- 3,5-dinitro-benzotrifluoride 4-chloro-3,5-dinitro-benzo-

    trifluoride

  • 74

    25 1

    . DMF , ,

    . , , . , Compound2 .

    Compound1 . , .

    .

    .

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