Citation: LI Wen-Ling, YAN Ben, SUN Chen-Guang, SHEN Qiu-Miao, LIU Wen-Qing, MA Xiao-Li, YANG Zhi. Aluminum Amine Compound Protected by β-Diketiminate Ligand: Preparation and Enhanced Performance as Catalyst for Ring-Opening Polymerization of ε-Caprolactone[J]. Chinese Journal of Inorganic Chemistry, ;2021, 37(1): 151-156. doi: 10.11862/CJIC.2021.007 shu

Aluminum Amine Compound Protected by β-Diketiminate Ligand: Preparation and Enhanced Performance as Catalyst for Ring-Opening Polymerization of ε-Caprolactone

LI Wen-Ling ^1,2 ,
YAN Ben ¹ ,
SUN Chen-Guang ¹ ,
SHEN Qiu-Miao ¹ ,
LIU Wen-Qing ¹ ,
MA Xiao-Li ^1,, ,
YANG Zhi ^1,,

1.
School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China
2.
The Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Corresponding author: MA Xiao-Li, maxiaoli@bit.edu.cn YANG Zhi, zhiyang@bit.edu.cn
Received Date: 12 July 2020
Revised Date: 19 September 2020

Figures(3)

An aluminum amine compound (L)AlH(NMe₂) (L=HC(C(Me)NAr)₂, Ar=2, 6-ⁱPr₂C₆H₃) (1) protected by steric β-diketiminate ligand L has been synthesized successfully. A two-step synthesis method was employed to prepare the aluminum amine (L)AlH(NMe₂) compound. The aluminum amine compound (L)AlH(NMe₂) was identified via NMR spectroscopy, elemental analysis, infrared diffuse reflectance spectroscopy and X-ray single crystal diffraction analysis. The aluminum amine compound containing both Al-NMe₂ and Al-H substitutes showed excellent catalytic performance on the ring-opening polymerization of ε-caprolactone. The molecular weight and molecular weight distribution of the resultant polycaprolactone were determined by high performance gel penetration chromatography.
- β-diketiminate ligand,
- aluminum amine compound,
- X-ray single crystal diffraction,
- ring-opening polymerization
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