Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide

doi:10.1016/S1872-2067(14)60293-X

催化学报 ›› 2015, Vol. 36 ›› Issue (5): 764-770.DOI: 10.1016/S1872-2067(14)60293-X

Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide

Anita Routaray^a, Nibedita Nath^a, Somanath Mantri^a, Tungabidya Maharana^b,, Alekha Kumar Sutar^a

a Catalysis Research Lab, Department of Chemistry, Ravenshaw University, Cuttack-3, Odisha, India;
b Department of Chemistry, National Institute of Technology, Raipur, India

收稿日期:2014-12-12 修回日期:2015-01-12 出版日期:2015-04-17 发布日期:2015-04-17
通讯作者: Tungabidya Maharana, Alekha Kumar Sutar

Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide

Anita Routaray^a, Nibedita Nath^a, Somanath Mantri^a, Tungabidya Maharana^b,, Alekha Kumar Sutar^a

a Catalysis Research Lab, Department of Chemistry, Ravenshaw University, Cuttack-3, Odisha, India;
b Department of Chemistry, National Institute of Technology, Raipur, India

Received:2014-12-12 Revised:2015-01-12 Online:2015-04-17 Published:2015-04-17
Contact: Tungabidya Maharana, Alekha Kumar Sutar

摘要/Abstract

摘要：

The -ONNO- tetradentate Schiff base ligand N,N'-bis(2-hydroxy-3-methoxybenzaldehyde)benzene-1,2-diamine (HMBBD) has been synthesized. The ligand was attached to copper (Cu-HMBBD) in methanol under N₂ atmosphere to give a mononuclear complex. The reactivity of this complex in the ring-opening polymerization (ROP) of lactide has been studied. The complex has a square planner geometry, as determined by X-ray diffraction studies. The copper complex is highly active towards the ring-opening polymerization of lactide, and the rate of polymerization is heavily dependent on the initiator used. The copper complex allows controlled ring-opening polymerization, as shown by the linear relationship between the percentage conversion and the number average molecular weight. Based on the literature, a mechanism for the ROP of lactide has been proposed.

关键词: Ring-opening polymerization, Lactide, Copper complex, Polylactic acid

Abstract:

Key words: Ring-opening polymerization, Lactide, Copper complex, Polylactic acid

Anita Routaray, Nibedita Nath, Somanath Mantri, Tungabidya Maharana, Alekha Kumar Sutar. Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide[J]. 催化学报, 2015, 36(5): 764-770.

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Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide

Synthesis and structural studies of copper(II) complex supported by -ONNO- tetradentate ligand: Efficient catalyst for the ring-opening polymerization of lactide

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