Novel cationically polymerized epoxy/poly(ε-caprolactone) polymers showing a shape memory effect

被引：44
|
作者：
Luetzen, Hendrik [1 ]
Gesing, Thorsten M. [2 ]
Kim, Byung Kyu [3 ]
Hartwig, Andreas [1 ]
机构：
[1] Fraunhofer Inst Mfg Technol & Adv Mat, D-28359 Bremen, Germany
[2] Univ Bremen, D-28359 Bremen, Germany
[3] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea
来源：
POLYMER | 2012年 / 53卷 / 26期
关键词：
Thermosetting epoxy; Shape memory polymer; Phase separation; SEGMENTED POLYURETHANES; MORPHOLOGY; SYSTEMS; SOFT;
D O I：
10.1016/j.polymer.2012.10.033
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Novel segmented and covalently crosslinked epoxy/poly(epsilon-caprolactone) (PCL) polymers, showing a shape memory effect are presented and characterized in this work. While a cationically polymerized cycloaliphatic epoxy resin form the required network to store the original shape for the shape recovery process in form of stresses in the deformed shape, we observed the formation of crystalline interactions of the PCL depending on its concentration in the crosslinked polymer. A minimum of PCL concentration is required to act as switchable phase and form crystalline interactions, required for the temporary shape fixation. The material properties of the epoxy/PCL polymers as well as the crystallization of the PCL and the shape memory characteristics are examined in this work. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6089 / 6095
页数：7
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