한국염색가공학회지 (Textile Coloration and Finishing)

  • 제29권2호
  • /
  • Pages.69-76
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  • 2017
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  • 1229-0033(pISSN)
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  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
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감타닌의 술폰화에 관한 연구

A Study on the Sulfonation of Persimmon Tannin

  • 권슬기 (경북대학교 바이오섬유소재학과) ;
  • 배도규 (경북대학교 바이오섬유소재학과)
  • Kwon, Seul Gi (Department of Bio-fibers and Materials Science, Kyungpook National University) ;
  • Bae, Do Gyu (Department of Bio-fibers and Materials Science, Kyungpook National University)
  • 투고 : 2017.02.03
  • 심사 : 2017.04.27
  • 발행 : 2017.06.27
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초록

To get the proper treatment conditions, sulfonation reactions of persimmon tannin with sodium sulfite and sulfuric acid were proceeded in various settings, respectively. Also, the property changes were investigated by carrying out the additional analysis: elementary analysis and instrumental analysis using FT-IR, DSC, and TGA. The degree of $-SO_3Na$ substitutions appeared 0.216 and 0.208 under the treatment time of 3 hours and 6 hours, respectively and the degree of $-SO_3H$ substitutions indicated 0.200 and 0.167 under 9 hours and 18 hours, respectively by elemental analysis. In terms of the FT-IR spectras, there was a peak based on the bonds of pyran ring and ether in relation to non-treated and sulphonated tannin at $1,102cm^{-1}$. No peak was shown in the sulfited tannin. An absorption peak which was due to the $C{\rightarrow}O$ of secondary -OH group became evident in nontreated and sulfited tannin at $1,092cm^{-1}$ and $1,090cm^{-1}$, respectively but the same result was not found in sulphonated tannin. The results of TGA analysis of the sulfonated persimmon tannin showed that the sulfonation of it improved thermal properties.

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참고문헌

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