引用本文:
Guang Ming Wu, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone[J]. Chinese Chemical Letters,
2008, 19(6): 681-684.
doi:
10.1016/j.cclet.2008.04.021
Citation: Guang Ming Wu, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone[J]. Chinese Chemical Letters, 2008, 19(6): 681-684. doi: 10.1016/j.cclet.2008.04.021
Citation: Guang Ming Wu, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone[J]. Chinese Chemical Letters, 2008, 19(6): 681-684. doi: 10.1016/j.cclet.2008.04.021
Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone
摘要:
Tetrahydrosalen ligand was employed in the synthesis of gadolinium complex. The ligand was deprotoned by LiBu, and the afforded lithium salt was reacted with anhydrous GdCl3 to produce the gadolinium complex through salt metathesis. This complex was successfully used to initiate the ring-opening polymerization of ε-caprolactone. The initiation conditions in different temperature, monomer-to-initiator ratio and time were investigated. Under the condition:[ε-caprolactone]:[catalyst]=600,56℃, toluene:2ml, poly(ε-caprolactone) (PCL) with Mw=11,2782 and PDI=1.96 was achieved.
English
Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ε-caprolactone
Abstract:
Tetrahydrosalen ligand was employed in the synthesis of gadolinium complex. The ligand was deprotoned by LiBu, and the afforded lithium salt was reacted with anhydrous GdCl3 to produce the gadolinium complex through salt metathesis. This complex was successfully used to initiate the ring-opening polymerization of ε-caprolactone. The initiation conditions in different temperature, monomer-to-initiator ratio and time were investigated. Under the condition:[ε-caprolactone]:[catalyst]=600,56℃, toluene:2ml, poly(ε-caprolactone) (PCL) with Mw=11,2782 and PDI=1.96 was achieved.
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