Mesoporous Zeolite as a New Catalyst for Polymerization of Lactones.

• Kageyama Keisuke

  Department of Chemistry and Biotechnology, Graduate School of Engineering, The Universty of Tokyo

• Tatsumi Takashi

  Engineering Research Institute, Faculty of Engineering, The Universty of Tokyo

• Aida Takuzo

  Department of Chemistry and Biotechnology, Graduate School of Engineering, The Universty of Tokyo

抄録

Polymerization of lactones such as δ-valerolactone (VL) and ε-caprolactone (CL) with protic compounds proceeded in the presence of an aluminosilicate mesoporous zeolite Al-MCM-41 (pore diameter of 27 Å, surface area = 1,010 m² g⁻¹), to give polyesters with narrow molecular weight distribution. The polymerization is likely to proceed via the activated monomer mechanism by the cooperative function of Lewis acidic aluminum and Brønsted acidic silanol functionalities on the interior wall. With titanate-mounted MCM-41 (Ti-MCM-41), the polymerization of VL gave a polymer containing an extremely high molecular weight fraction.

収録刊行物

• Polymer Journal

  Polymer Journal 31 (11-2), 1005-1008, 1999

  The Society of Polymer Science, Japan

キーワード

• Mesoporous Zeolite
• Polymerization of Lactone
• Living Polymerization
• Heterogeneous Catalyst
• Block Copolymer

詳細情報

• CRID: 1390282681266598912
• NII論文ID: 10006282280
• NII書誌ID: AA00777013
• DOI: 10.1295/polymj.31.1005
• COI: 1:CAS:528:DyaK1MXnsVGitbo%3D
• ISSN: 13490540
• ISSN: 00323896
• NDL書誌ID: 4909155
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4909155
• 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