酶法合成淀粉接枝聚己内酯共聚物的核磁分析
NMR Spectroscopy Assignment of starch-grafted-polycaprolactone copolymer with lipase as catalyze
在有机溶剂DMSO中，以猪胰脂肪酶为催化剂，合成了淀粉接枝聚己内酯共聚物。利用红外光谱初步验证接枝情况，再采用1H-NMR、13C-NMR核磁共振光谱表征产物微结构，完成了1H-NMR、13C-NMR谱带的归属，并计算了己内酯的接枝率及主要接枝位置，实验结果己内酯接枝率达30％以上，主要接枝在C2、C3上。
Starch-grafted-polycaprolactone (St-g-PCL) was synthesized in DMSO using porcine pancreatic lipase as catalyze. The structure of the copolymer was first characterized by FTIR, then assignment by NMR. As a result, the grafting rate could above 30%,and most of them graft at C2 and C3.
蒋超、段彬、杨成、徐玲
生物工程学生物化学高分子化合物工业
淀粉，脂肪酶，开环聚合，己内酯 ，核磁共振
Starch lipase，Ring-opening polymerization，caprolactone NMR
蒋超,段彬,杨成,徐玲.酶法合成淀粉接枝聚己内酯共聚物的核磁分析[EB/OL].(2008-05-30)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200805-856.点此复制
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