引用本文:
张其锦, 王冰, 罗筱烈, 汪志勇. 双羧基封端聚己内酯的合成与表征[J]. 应用化学,
1994, 11(2): 57-61.
Citation: Zhang Qijin, Wang Bing, Luo Xiaolie, Wang Zhiyong. Synthesis and Characterization of Poly (ε-Caprolactone) with Two Terminated Carboxyl Groups[J]. Chinese Journal of Applied Chemistry, 1994, 11(2): 57-61.
Citation: Zhang Qijin, Wang Bing, Luo Xiaolie, Wang Zhiyong. Synthesis and Characterization of Poly (ε-Caprolactone) with Two Terminated Carboxyl Groups[J]. Chinese Journal of Applied Chemistry, 1994, 11(2): 57-61.
双羧基封端聚己内酯的合成与表征
English
Synthesis and Characterization of Poly (ε-Caprolactone) with Two Terminated Carboxyl Groups
Abstract:
ε-Caprolactone was rapidly polymerizaed at 225℃ in the presence of succinic acid under nitrogen atmosphere.The results of polymer characterization through IR,1H NMR and 13C NMR suggested that the acid has been incorporated into poly (ε-caprolactone) chain,giving two terminal carboxylic acid groups.The VPO,1H NMR and the end group titration methods have been used to determine the molecular weight of the polymers.It is found that the molecular weights of the polymers increased with the increase of the ratio of ε-caprolactam to succinic acid and after 3 hours of reaction it reached a maximum value,Mn=3×103.
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Key words:
- ε-caprolactone
- / ring-opening polymerization
- / sliccinic acid
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