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      SCIE SCOPUS KCI등재

      열적으로 안정한 리그닌 공중합물과 PP의 용융 블렌드 제조 및 물성

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      https://www.riss.kr/link?id=A101818140

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      다국어 초록 (Multilingual Abstract)

      Lignin-based polycaprolactone (LigPCL) copolymer was synthesized by both the ring opening reaction of ε-caprolactone with the hydroxyl groups in the lignin and the concomitant polymerization of ε-caprolactone. FTIR spectra showed C=O (1755 cm<SUP>-1</SUP>) and C-O (1202 cm<SUP>-1</SUP>) peaks confirming that the esterification reaction took place successfully between lignin and ε-caprolactone. T₂, at which the weight loss of 2% occurs, of pristine lignin and LigPCL were measured as 63 and 211 °C, respectively, and so the synthesized LigPCL had superior thermal stability to the lignin. PP/Lig- PCL blends were prepared at various contents of LigPCL up to 30 wt% by a melt extrusion process. In proportion to the content of the LigPCL, tensile strengths, flexural strengths, and tensile modulus of PP/LigPCL blends greatly decreased, but elongations at break of those greatly increased. To improve the compatibility between PP and LigPCL, maleic anhydride-grafted polypropylene (PP-g-MA) was added. SEM images for the fracture surfaces of the blends showed that the PP-g-MA was effective in reducing the domain size of dispersed phase. Thus, T₂, tensile strength, tensile modulus, and elongation at break of a 70/30 blend of PP/LigPCL were enhanced by 6 °C, 17%, 31%, and 79%, respectively, by the addition of PP-g-MA. This work clearly demonstrates that thermoplastic LigPCL could be desirably synthesized and applied for value added and eco-friendly products through common melt processes used for polymer blend or composites manufacturing.
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      Lignin-based polycaprolactone (LigPCL) copolymer was synthesized by both the ring opening reaction of ε-caprolactone with the hydroxyl groups in the lignin and the concomitant polymerization of ε-caprolactone. FTIR spectra showed C=O (1755 cm<SUP...

      Lignin-based polycaprolactone (LigPCL) copolymer was synthesized by both the ring opening reaction of ε-caprolactone with the hydroxyl groups in the lignin and the concomitant polymerization of ε-caprolactone. FTIR spectra showed C=O (1755 cm<SUP>-1</SUP>) and C-O (1202 cm<SUP>-1</SUP>) peaks confirming that the esterification reaction took place successfully between lignin and ε-caprolactone. T₂, at which the weight loss of 2% occurs, of pristine lignin and LigPCL were measured as 63 and 211 °C, respectively, and so the synthesized LigPCL had superior thermal stability to the lignin. PP/Lig- PCL blends were prepared at various contents of LigPCL up to 30 wt% by a melt extrusion process. In proportion to the content of the LigPCL, tensile strengths, flexural strengths, and tensile modulus of PP/LigPCL blends greatly decreased, but elongations at break of those greatly increased. To improve the compatibility between PP and LigPCL, maleic anhydride-grafted polypropylene (PP-g-MA) was added. SEM images for the fracture surfaces of the blends showed that the PP-g-MA was effective in reducing the domain size of dispersed phase. Thus, T₂, tensile strength, tensile modulus, and elongation at break of a 70/30 blend of PP/LigPCL were enhanced by 6 °C, 17%, 31%, and 79%, respectively, by the addition of PP-g-MA. This work clearly demonstrates that thermoplastic LigPCL could be desirably synthesized and applied for value added and eco-friendly products through common melt processes used for polymer blend or composites manufacturing.

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      참고문헌 (Reference)

      1 J. G. Jegal, 15 : 21-, 2012

      2 J. H. Kim, 22 : 979-, 1998

      3 T. A. Bullions, 92 : 3771-, 2004

      4 J. A. Méndez, 105 : 3588-, 2007

      5 B. K. Deka, 67 : 1875-, 2011

      6 N. D. Luong, 68 : 870-, 2011

      7 G. Zhao-Xia, 27 : 1177-, 1991

      8 M. Funabashi, 82 : 1538-, 2009

      9 C. Johansson, 7 : 2506-, 2012

      10 D. Feldman, 12 : 271-, 1986

      1 J. G. Jegal, 15 : 21-, 2012

      2 J. H. Kim, 22 : 979-, 1998

      3 T. A. Bullions, 92 : 3771-, 2004

      4 J. A. Méndez, 105 : 3588-, 2007

      5 B. K. Deka, 67 : 1875-, 2011

      6 N. D. Luong, 68 : 870-, 2011

      7 G. Zhao-Xia, 27 : 1177-, 1991

      8 M. Funabashi, 82 : 1538-, 2009

      9 C. Johansson, 7 : 2506-, 2012

      10 D. Feldman, 12 : 271-, 1986

      11 J. H. Lora, 10 : 39-, 2002

      12 L. D. Duong, 8 : 4518-, 2013

      13 B. Carlo, 98 : 1451-, 2005

      14 N. T. T. Binh, 16 : 923-, 2009

      15 D. V. Evtuguin, 34 : 1163-, 1998

      16 T. Hatakeyama, 43 : 1177-, 2002

      17 H. Yoshida, 40 : 1819-, 1990

      18 K. Nakamura, 3 : 151-, 1992

      19 I. K. Park, Sungkyunkwan University 2015

      20 김혜영, "ε-Caprolactam과 2-Piperidone으로부터 나일론 6,5 공중합체 제조 및 특성평가" 한국고분자학회 38 (38): 31-37, 2014

      21 J. D. Nam, "WO2014038896"

      22 T. Hatakeyama, "Thermal Properties of Green Polymers and Biocomposites" Kluwer Academic Publishers 2004

      23 "Standard Test Methods for Determining the Biobased Content of Solid, Liquid, and Gaseous Samples Using Radiocarbon Analysis"

      24 K. V. Sarkanen, "Lignin: Occurrence, Formation, Structure and Reactions" Wiley-Interscience 1971

      25 K. Othmer, "Encyclopedia of Chemical Technology" Wiley 2005

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      유사연구자 (20) 활용도상위20명

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2023 평가예정 해외DB학술지평가 신청대상 (해외등재 학술지 평가)
      2020-01-01 평가 등재학술지 유지 (해외등재 학술지 평가) KCI등재
      2012-06-04 학술지명변경 외국어명 : 미등록 -> POLYMER(KOREA) KCI등재
      2010-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2008-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2006-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2004-01-01 평가 등재학술지 유지 (등재유지) KCI등재
      2001-07-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      1999-01-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      학술지 인용정보

      학술지 인용정보
      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.58 0.47 0.5
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.45 0.43 0.401 0.13
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