引用本文:
Ying Xia Wang, Jun Feng, Feng He, Ren Xi Zhuo. Metal-free synthesis of amphiphilic functional polycarbonates[J]. Chinese Chemical Letters,
2007, 18(12): 1528-1530.
doi:
10.1016/j.cclet.2007.09.009
Citation: Ying Xia Wang, Jun Feng, Feng He, Ren Xi Zhuo. Metal-free synthesis of amphiphilic functional polycarbonates[J]. Chinese Chemical Letters, 2007, 18(12): 1528-1530. doi: 10.1016/j.cclet.2007.09.009
Citation: Ying Xia Wang, Jun Feng, Feng He, Ren Xi Zhuo. Metal-free synthesis of amphiphilic functional polycarbonates[J]. Chinese Chemical Letters, 2007, 18(12): 1528-1530. doi: 10.1016/j.cclet.2007.09.009
Metal-free synthesis of amphiphilic functional polycarbonates
摘要:
Amphiphilic block copolymers of poly (5-benzyloxy trimethylene carbonate)(PBTMC) and poly (ethylene glycol)(PEG) were synthesized through enzymatic polymerization using immobilized porcine pancreas lipase (IPPL). The obtained copolymers with different compositions were characterized by GPC and 1H NMR. The copolymer composition was in agreement with the feed ratio. The molecular weight of the copolymers showed an increasing trend with the decrease of PEG contents. Micelles of the copolymers were formed by dialysis procedure, and characterized by transmission electron microscopy (TEM).
English
Metal-free synthesis of amphiphilic functional polycarbonates
Abstract:
Amphiphilic block copolymers of poly (5-benzyloxy trimethylene carbonate)(PBTMC) and poly (ethylene glycol)(PEG) were synthesized through enzymatic polymerization using immobilized porcine pancreas lipase (IPPL). The obtained copolymers with different compositions were characterized by GPC and 1H NMR. The copolymer composition was in agreement with the feed ratio. The molecular weight of the copolymers showed an increasing trend with the decrease of PEG contents. Micelles of the copolymers were formed by dialysis procedure, and characterized by transmission electron microscopy (TEM).
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Key words:
- Amphiphilic block copolymer
- / Enzymatic polymerization
- / Polycarbonate
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