Characterization of Cross-linking Structures in UV-cured Acrylic Ester Resin by MALDI-MS Combined with Supercritical Methanolysis

• MATSUBARA Hideki

  Aichi Industrial Technology Institute

• HATA Shun-ichiro

  Department of Materials Applied Chemistry, Graduate School of Engineering, Nagoya University

• KONDO Yosuke

  Department of Materials Applied Chemistry, Graduate School of Engineering, Nagoya University

• ISHIDA Yasuyuki

  EcoTopia Science Institute, Nagoya University

• TAKIGAWA Hiroshi

  Sumitomo Chemical Co., Ltd.

• OHTANI Hajime

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology

抄録

The cross-linking structure of the ultra violet (UV)-cured resin prepared from dipentaerithritol hexacrylate (DPHA) was characterized by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) combined with supercritical methanolysis. The MALDI-mass spectrum of the decomposition products obtained by supercritical methanolysis contained a series of peaks of sodium-cationized methyl acrylate (MA) oligomers up to around m/z = 4000 formed through selective cleavage and methylation occurred at ester linkages in UV-cured DPHA. Furthermore, in order to observe widely distributed sequence lengths in the cross-linking junctions, the decomposed products of the cured resin were then fractionated using size exclusion chromatography followed by the MALDI-MS measurements of the individual fractions. The MALDI-mass spectra of the lower molar mass fractions mainly consisted of a series of peaks of MA oligomers around m/z values of several thousands, whereas those of higher molecular weight showed a broad peak up to m/z ca. 180000. The observed distributions of the supercritical methanolysis products suggested that the network junctions in the given UV-cured resin were composed of up to around 2000 acrylate units.

収録刊行物

• Analytical Sciences

  Analytical Sciences 22 (11), 1403-1407, 2006

  社団法人 日本分析化学会

キーワード

• Analytical Chemistry

詳細情報

• CRID: 1390001204256471040
• NII論文ID: 130004441197
• NII論文ID: 10020140570
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.22.1403
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 8537098
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8537098
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.22.1403.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.22.1403/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/22/11/22_11_1403/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可