Abstract
A series of metal organic frameworks (MOFs) MDABCO (M = Co, Ni, Cu, Zn; DABCO = 1,4-diazabicyclo[2.2.2]octane) are utilized as catalysts for the bulk ring-opening polymerization of L-lactide. The catalytic activity varies in the order CuDABCO, NiDABCO < ZnDABCO, CoDABCO. By adding lactic acid, we unexpectedly observed enhanced catalytic activity. The combined use of lactic acid and ZnDABCO during polymerization results in a highly active polymerization system, along with the gradual change of MOFs structure caused by an increased acid concentration. Compared to related homogeneous fragments, such as zinc nitrate and 1,4-diazabicyclo[2.2.2]octane, ZnDABCO is found to afford highly isotactic polylactide, which would be ascribed to the unique structural properties of MOFs.
| Original language | English |
|---|---|
| Pages (from-to) | 15-21 |
| Number of pages | 7 |
| Journal | Applied Catalysis A: General |
| Volume | 546 |
| DOIs | |
| Publication status | Published - 25 Sep 2017 |
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Keywords
- Heterogeneous catalysis
- Lactic acid
- MDABCO MOFs
- Polylactide
- Ring-opening polymerization
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
Cite this
Influence of lactic acid on the catalytic performance of MDABCO for ring-opening polymerization of L-lactide. / Luo, Zhixiong; Chaemchuen, Somboon; Zhou, Kui; Gonzalez, Andres Alvarado; Verpoort, Francis.
In: Applied Catalysis A: General, Vol. 546, 25.09.2017, p. 15-21.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of lactic acid on the catalytic performance of MDABCO for ring-opening polymerization of L-lactide
AU - Luo, Zhixiong
AU - Chaemchuen, Somboon
AU - Zhou, Kui
AU - Gonzalez, Andres Alvarado
AU - Verpoort, Francis
PY - 2017/9/25
Y1 - 2017/9/25
N2 - A series of metal organic frameworks (MOFs) MDABCO (M = Co, Ni, Cu, Zn; DABCO = 1,4-diazabicyclo[2.2.2]octane) are utilized as catalysts for the bulk ring-opening polymerization of L-lactide. The catalytic activity varies in the order CuDABCO, NiDABCO < ZnDABCO, CoDABCO. By adding lactic acid, we unexpectedly observed enhanced catalytic activity. The combined use of lactic acid and ZnDABCO during polymerization results in a highly active polymerization system, along with the gradual change of MOFs structure caused by an increased acid concentration. Compared to related homogeneous fragments, such as zinc nitrate and 1,4-diazabicyclo[2.2.2]octane, ZnDABCO is found to afford highly isotactic polylactide, which would be ascribed to the unique structural properties of MOFs.
AB - A series of metal organic frameworks (MOFs) MDABCO (M = Co, Ni, Cu, Zn; DABCO = 1,4-diazabicyclo[2.2.2]octane) are utilized as catalysts for the bulk ring-opening polymerization of L-lactide. The catalytic activity varies in the order CuDABCO, NiDABCO < ZnDABCO, CoDABCO. By adding lactic acid, we unexpectedly observed enhanced catalytic activity. The combined use of lactic acid and ZnDABCO during polymerization results in a highly active polymerization system, along with the gradual change of MOFs structure caused by an increased acid concentration. Compared to related homogeneous fragments, such as zinc nitrate and 1,4-diazabicyclo[2.2.2]octane, ZnDABCO is found to afford highly isotactic polylactide, which would be ascribed to the unique structural properties of MOFs.
KW - Heterogeneous catalysis
KW - Lactic acid
KW - MDABCO MOFs
KW - Polylactide
KW - Ring-opening polymerization
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UR - http://www.scopus.com/inward/citedby.url?scp=85027972399&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2017.08.007
DO - 10.1016/j.apcata.2017.08.007
M3 - Article
VL - 546
SP - 15
EP - 21
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
ER -