Aztreonam USP Related Compound A (Open-ring Aztreonam)
CAS Number:
87500-74-1
Molecular Formula:
C13H19N5O9S2
Bulk ring-opening polymerization (ROP) of L-lactide catalyzed by Ni(ii) and Ni(ii)-Sm(iii) complexes based on a salen-type schiff-base ligand
Literature Information
Publication Date
2010-12-22
DOI
10.1039/C0PY00385A
Impact Factor
5.582
Authors
Guoqi Xiao, Bing Yan, Rui Ma, Wen Juan Jin, Xing Qiang Lü, Li Qin Ding, Chu Zeng, Lei Lei Chen, Feng Bao
View Original
Abstract
A monometallic (Ni2+, 1) and a bimetallic (Ni2+-Sm3+, 2) complexes based on the Salen-type Schiff-base ligand H22L (H22L = N,N′-bis(3-methoxysalicylidene)ethylene-1,2-diamine) were synthesized and characterized by FT-IR, ESI-MS and X-ray crystallography. The catalysis results showed that the two complexes with different active species, could efficiently catalyze the bulk solvent-free melt ring-opening polymerization (ROP) of L-lactide with moderate molecular weights and narrow molecular weight distributions. Especially, for the bimetallic complex 2, the involvement of rare ions effectively passivated the catalytic behavior on the ROP of L-lactide, while was in favor of the increase of polymeric molecular weights (Mn) and the polymerization controllability.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
Recommended Compounds
2-Methyl-2-propanyl (2R)-2-formyl-1-piperidinecarboxylate
CAS Number:
134526-69-5
Molecular Formula:
C11H19NO3
![2-[({[(2-Methyl-2-propanyl)oxy]carbonyl}amino)methyl]isonicotinic acid structure](https://static.chemtradehub.com/structs/473/473924-63-9-973b.webp "2-[({[(2-Methyl-2-propanyl)oxy]carbonyl}amino)methyl]isonicotinic acid structure")
2-[({[(2-Methyl-2-propanyl)oxy]carbonyl}amino)methyl]isonicotinic acid
CAS Number:
473924-63-9
Molecular Formula:
C12H16N2O4
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