Liu, X. Y.; Zhu, L.; Jie, S. Y.; Li, B. G. Controllable ring-opening polymerization of δ-valerolactone catalyzed by quinolinyl-urea/MTBD systems. Chinese J. Polym. Sci. 2024, 42, 1103–1110
Xin-Yu Liu, Liang Zhu, Su-Yun Jie, et al. Controllable Ring-opening Polymerization of δ-Valerolactone Catalyzed by Quinolinyl-Urea/MTBD Systems[J]. Chinese Journal of Polymer Science, 2024, 42(8): 1103-1110. DOI: 10.1007/s10118-024-3127-3.
Liu, X. Y.; Zhu, L.; Jie, S. Y.; Li, B. G. Controllable ring-opening polymerization of δ-valerolactone catalyzed by quinolinyl-urea/MTBD systems. Chinese J. Polym. Sci. 2024, 42, 1103–1110DOI: 10.1007/s10118-024-3127-3.
Xin-Yu Liu, Liang Zhu, Su-Yun Jie, et al. Controllable Ring-opening Polymerization of δ-Valerolactone Catalyzed by Quinolinyl-Urea/MTBD Systems[J]. Chinese Journal of Polymer Science, 2024, 42(8): 1103-1110. DOI: 10.1007/s10118-024-3127-3.DOI:
Controllable Ring-opening Polymerization of δ-Valerolactone Catalyzed by Quinolinyl-Urea/MTBD Systems
A series of quinolinyl-urea catalysts were synthesized and evaluated to be highly active in the ring-opening polymerization of δ-VL in combination with MTBD. Linear PVLs with narrow molecular weight distribution were obtained and the “living”/controllable characteristic of ROP was verified by the kinetic and chain extension experiments.
Abstract
Due to their excellent biocompatibility and biodegradability
aliphatic polyesters are widely used in the biomedical
packaging and agricultural fields
which are usually accessed by the ring-opening polymerization (ROP) of lactones and the catalysts particularly play an important role. Herein a series of quinolinyl-urea catalysts have been synthesized
via
the reaction between isocyanate and aminoquinoline with an amino group at different substitution positions and characterized. In combination with 7-methyl-1
5
7-triazabicyclo[4
4
0
]
dec-5-ene (MTBD) as a cocatalyst and benzyl alcohol (BnOH) as an initiator
-VL). The polymerization conditions were optimized by varying the type of organic base
catalyst concentration and reaction temperature. By changing the ratio of [M
]
0
/[I
]
linear polyvalerolactones (PVLs) with different molecular weights and narrow molecular weight distribution wer
e prepared. The kinetic and chain extension experiments were carried out to prove the “living”/controllable feature. And the NMR experiments were used to support the proposal of possible mechanism.
关键词
Keywords
references
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