Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H2O)] or Binuclear [Zn2(L)(OAc)2(H2O)] Complex Based on the Salen-type Schiff-base Ligand

Li-ying Wu; Dai-di Fan; Xing-qiang Lü; Rong Lu

doi:10.1007/s10118-014-1425-x

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Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H2O)] or Binuclear [Zn2(L)(OAc)2(H2O)] Complex Based on the Salen-type Schiff-base Ligand

Updated：2021-06-21

- Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H2O)] or Binuclear [Zn2(L)(OAc)2(H2O)] Complex Based on the Salen-type Schiff-base Ligand
- Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H₂O)] or Binuclear [Zn₂(L)(OAc)₂(H₂O)] Complex Based on the Salen-type Schiff-base Ligand
- Chinese Journal of Polymer Science 2014年32卷第6期页码：768-777
- Affiliations：
  
  Shaanxi Key Laboratory of Degradable Medical Material, Northwest University, Xi’an 710069, China
- Author bio：
  
  **Xing-qiang Lü (吕兴强), E-mail: lvxq@nwu.edu.cn
  Rong Lu (卢荣), E-mail: lu78441@aliyun.com
- Funds：
  
  National Natural Science Foundation of China(91222201;21173165;20871098);Program for New Century Excellent Talents in Universities from the Ministry of Education of China(NCET-10-0936);State Key Laboratory of Structure Chemistry(20100014);Provincial Natural Foundation(2011JQ2011);Education Committee Foundation of Shaanxi Province(11JK0588;12JK0577);Graduate Innovation and Creativity Fund(YZZ12038);Northwest University and Hong Kong Research Grants Council(HKBU 202407;FRG/06-07/II-16)
- DOI：10.1007/s10118-014-1425-x
  中图分类号：
- 收稿：2013-09-22，
  
  修回：2013-11-18，
  
  录用：2013-11-25，
  
  纸质出版：2014-06
- Accepted：
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Li-ying Wu, Dai-di Fan, Xing-qiang Lü, 等. Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H2O)] or Binuclear [Zn2(L)(OAc)2(H2O)] Complex Based on the Salen-type Schiff-base Ligand[J]. Chinese Journal of Polymer Science, 2014,32(6):768-777.

Li-ying Wu, Dai-di Fan, Xing-qiang Lü, et al. Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H₂O)] or Binuclear [Zn₂(L)(OAc)₂(H₂O)] Complex Based on the Salen-type Schiff-base Ligand[J]. Chinese Journal of Polymer Science, 2014, 32(6): 768-777. DOI: 10.1007/s10118-014-1425-x.
Li-ying Wu, Dai-di Fan, Xing-qiang Lü, 等. Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H2O)] or Binuclear [Zn2(L)(OAc)2(H2O)] Complex Based on the Salen-type Schiff-base Ligand[J]. Chinese Journal of Polymer Science, 2014,32(6):768-777. DOI： 10.1007/s10118-014-1425-x.

Li-ying Wu, Dai-di Fan, Xing-qiang Lü, et al. Ring-Opening Copolymerization of Cyclohexene Oxide and Maleic Anhydride Catalyzed by Mononuclear [Zn(L)(H₂O)] or Binuclear [Zn₂(L)(OAc)₂(H₂O)] Complex Based on the Salen-type Schiff-base Ligand[J]. Chinese Journal of Polymer Science, 2014, 32(6): 768-777. DOI: 10.1007/s10118-014-1425-x. DOI：

摘要

Abstract

From the self-assembly of the typical Salen-type Schiff-base ligand

and Zn(OAc)

O in the molar ratio of 1:1 or 1:2

the mononuclear [Zn(L)(H

O)] (

) or binuclear [Zn

(L)(OAc)

O)] (

) are obtained

respectively. For both complexes

and

the unsaturated five-coordinate coordination environment to the catalytic active centers (Zn

ions) permits the monomer insertion for the effective solution copolymerization of cyclohexene oxide and maleic anhydride. All the solution copolymerizations afford poly(ester-

-ether)s

while lower catalyst and co-catalyst concentrations are helpful for the formation of alternating polyester. Of the three co-catalysts

4-(dimethylamino)pyridine is found to be the most efficient

while an excess thereof is detrimental for chain growth of the copolymers.

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