Synthesis and characterization of star-shaped diblock poly(ε-caprolactone)/poly(ethylene oxide) copolymers

被引：48

作者：

Maglio, G ^{[1
]}

Nese, G ^{[1
]}

Nuzzo, M ^{[1
]}

Palumbo, R ^{[1
]}

机构：

[1] Univ Naples Federico II, Complesso Univ Monte S Angelo, Dipartimento Chim, I-80126 Naples, Italy

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 12期

关键词：

block copolymers; poly(epsilon-caprolactone); poly(ethylene oxide); star polymers;

D O I：

10.1002/marc.200400113

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Star-shaped hydroxy-terminated poly(epsilon-caprolactone)s (ssPCL), with arms of different lengths, were obtained by ring-opening polymerization (ROP) of epsilon-caprolactone initiated by pentaerythritol, and were condensed with alpha-methyl-omega-(3-carboxypropionyloxy)-poly(ethylene oxide)s ((M) over barn = 5550-5000) to afford four-armed PCL-PEO star diblock copolymers (ssPCL-PEO). The polymers were characterized by H-1 and C-13 NMR spectroscopy and size-exclusion chromatography (SEC). The melting behavior of ssPCLs was studied by differential scanning calorimetry (DSC). X-ray diffraction and DSC techniques were used to investigate the crystalline phases of ssPCL-PEOs.

引用

页码：1139 / 1144

页数：6

共 14 条

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