Synthesis and characterization of star-shaped aliphatic polyester

被引：0
|
作者：
Shin, YC
Choi, KY
Jin, MY
Hong, SK
Cho, D
Chang, T
Ree, M
机构：
[1] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea
[2] Chungnam Natl Univ, Dept Polymer Sci & Engn, Taejon 305764, South Korea
[3] Pohang Univ Sci & Technol, Ctr Integrated Mol Syst, Pohang 790784, South Korea
[4] Pohang Univ Sci & Technol, Dept Chem, Pohang 790784, South Korea
来源：
KOREA POLYMER JOURNAL | 2001年 / 9卷 / 02期
关键词：
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Several star-polymers with aliphatic cores were synthesized by ring opening polymerization (ROP) of epsilon -caprolactone using stannous 2-ethyl-hexanoate as a catalyst. The star-polymers were thoroughly analyzed by MALDI-TOF mass spectrometry, temperature gradient interaction chromatography and C-13-NMR to obtain detailed information of the molecular structure. The imperfection of the star-polymers seemed to be originated from restricted participation of sterically hindered hydroxyl groups of initiator. The synthesized star-polymers had narrow molecular weight distributions. Various reaction conditions to control the imperfection were studied.
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页码：100 / 106
页数：7
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