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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-537 |
| Subject |
Synthesis and coloration approaches with new designed novel anthraquinone dyes in supercritical carbon dioxide |
| Authors |
Myeongjin Kim, Kyeongsu Min, HyoRim Kim, gisu Heo, Young-A Son*
Dept. of Advanced Organic Materials Engineering, Chungnam National University, Korea
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| Abstract |
When dyeing in super critical CO2, non-polar dyes are used to enable dissolution. Polyester (polyethylene terephtalate or PET) is also non-polar and during the dyeing process, the dye molecules can diffuse into the polymer matrix, where they are physically bonded. Because of its non-polarity, polyester can be dyed in super critical CO2 with non-reactive, so-called disperse dyes.
Anthraquinone disperse dyes are plays a vital role in the dyestuffs industry. These molecules are more stable under the experimental conditions and as well as in various organic solvents when during the calibrations. Molar absorption coefficients of anthraquinone dyes are allows spectroscopic determination even at very low concentrations.
Here we have synthesized eleven novel anthraquinone dyes from readily available starting materials by using simple and convenient methods. All the synthesized compounds were characterized by 1HNMR, 13CNMR, UV and HRMS. Dyeing of polyester fabric with anthraquinone blue dyes performed under supercritical carbon dioxide conditions. Most of the anthraquinone dye derivatives exhibited excellent blue color property under supercritical CO2 conditions.
The mechanism involved in the disperse dyeing of polyester fabric is the CO2 penetrates and swells the fibres, thereby facilitating the diffusion of dye molecules through the polymer. Upon supercritical state, CO2 molecules exit the shrinking fiber and the dye is retained in the textile.
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| E-mail |
moungjin14@naver.com |
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121st General Meeting of the KCS