Earticle

현재 위치 Home

Characterization of the solvent-fractionated lignins from Quercus mongolicaas treated in supercritical water oxidation

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    강원대학교 산림과학연구소 학술대회 바로가기
  • 통권
    KNU IFS 2018 Annual International Symposium of Institute of Forest Science (2018.09)바로가기
  • 페이지
    pp.4-4
  • 저자
    Jin-Ho Seo, Hanseob Jeong, Hyung Won Lee, Cheol-Soon Choi, Jin-Ho Bae, Soo-Min Lee, Yong Sik Kim
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A450133

원문정보

초록

영어
Valuable applications of lignin are restricted by its heterogeneous features such as structural heterogeneity, high polydispersity, complex functional group distribution, solubility and etc. Solvent fractionation of lignin is one of the useful ways to increase its utilization by taking more uniform lignin. In this study, the crude lignin extracted from Quercus mongolica as treated in supercritical water oxidation was subjected to sequential fractionation with four organic solvents and five lignin fractions (F1~F5) were obtained. The yields of five fractions F1, F2, F3, F4, and F5 were 30.6%, 4.3%, 41.7%, 2.0%, and 3.7%, respectively. As fractionation proceeded, the carbon content gradually increased from 57.6% (F2) to 67.0% (F5). In addition, molecular weights and polydispersity (PDI) of fractionated lignins gradually decreased from F2 to F5. However, the content of methoxyl groups tended to be opposite to the molecular weights. The FT-IR spectra of crude lignin and fractionated lignins were very similar. Additional chemical structures of lignin such as phenolic hydroxyl and aliphatic hydroxyl content were investigated by 1H NMR. Moreover, TGA/DSC was conducted to analyze thermal stabilities and degradation behavior of the fractionated lignins.

키워드

Lignin Characterization Supercritical water Molecular weight Fractionation

저자

  • Jin-Ho Seo [ Division of Forest Material Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Kore ]
  • Hanseob Jeong [ Wood Chemistry Division, National Institute of Forest Science, Seoul, 02455, Republic of Korea ]
  • Hyung Won Lee [ Wood Chemistry Division, National Institute of Forest Science, Seoul, 02455, Republic of Korea ]
  • Cheol-Soon Choi [ Division of Forest Material Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Kore ]
  • Jin-Ho Bae [ Division of Forest Material Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Kore ]
  • Soo-Min Lee [ Wood Chemistry Division, National Institute of Forest Science, Seoul, 02455, Republic of Korea ]
  • Yong Sik Kim [ Division of Forest Material Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Republic of Kore ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    강원대학교 산림과학연구소 학술대회
  • 간기
    부정기
  • 수록기간
    2017~2024
  • 십진분류
    KDC 526 DDC 634

이 권호 내 다른 논문 / 강원대학교 산림과학연구소 학술대회 KNU IFS 2018 Annual International Symposium of Institute of Forest Science

    피인용수 : 0건 (자료제공 : 네이버학술정보)

    함께 이용한 논문 이 논문을 다운로드한 분들이 이용한 다른 논문입니다.

      출처 : 네이버학술정보

        0개의 논문이 장바구니에 담겼습니다.

        페이지 저장
        소속기관 조회
        이용자님의 소속기관(단체)이 서비스에 가입되어 있는지 확인해 보십시오.
        기관회원에 소속되어 있는 이용자는 원문을 무료로 이용할 수 있습니다.