High-Pressure Synthesis of Cyclic Diphenylacetylene Oligomer.

• Kojima Y.

  Toyota Central Research & Development Laboratories, Inc

• Matsuoka T.

  Toyota Central Research & Development Laboratories, Inc

• Takahashi H.

  Toyota Central Research & Development Laboratories, Inc

Bibliographic Information

Other Title

• High-Pressure Synthesis of Cyclic Diphe

Abstract

New conjugated oligomers were synthesized by reacting diphenylacetylene at pressures of 0. 13 to 0. 76 GPa and at temperatures of 250 to 300°C for 1-10 h. The number-average molecular weight M_n and the weight-average molecular weight M_w, increased with pressure, but those values were independent of temperature and time (M_n:320-490, M_w:350-580). Elementary analysis, field desorption mass (FDMS) spectrometry, FTIR, and ^13dC NMR experiments revealed that the oligomers above and including pentamer were new compounds having cyclic structures.

Journal

• The Review of High Pressure Science and Technology

  The Review of High Pressure Science and Technology 7 829-831, 1998

  The Japan Society of High Pressure Science and Technology

Keywords

• triple bond
• diphenylacetylene
• crystal transformation
• field desorption mass spectrometry
• cyclic oligomer

Details

• CRID: 1390001204382525440
• NII Article ID: 10002691992
• NII Book ID: AN10452913
• DOI: 10.4131/jshpreview.7.829
• ISSN: 13481940
• ISSN: 0917639X
• NDL BIB ID: 4494071
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4494071
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed