Fast switchable, epoxy based shape-memory polymers with high strength and toughness

被引：53
作者：
Arnebold, Andre [1 ]
Hartwig, Andreas [1 ]
机构：
[1] Fraunhofer Inst Fertigungstech & Angew Mat Forsch, Wiener Str 12, D-28359 Bremen, Germany
来源：
POLYMER | 2016年 / 83卷
关键词：
Shape-memory polymer; Epoxy resin; Crystallinity; CATIONIC-POLYMERIZATION; NETWORKS; MORPHOLOGY; POLY(OMEGA-PENTADECALACTONE); POLYURETHANES; TEMPERATURE; COMPOSITES; ADJUSTMENT; COPOLYMER; SEGMENTS;
D O I：
10.1016/j.polymer.2015.12.007
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A fast switchable, epoxy based shape-memory polymer is presented. For this, a partially crystalline epoxy resin was formed by cationic polymerization in the presence of a high meltable polyester polyol, namely poly(omega-pentadecalactone) (PPDL). Under certain polymerization conditions, this system generates a high degree of crystallinity compared to the respective poly(epsilon-caprolactone) (PCL) counterpart. Thus, such an epoxy/PPDL composite exhibits very fast shape-fixity and a good shape-memory cycle stability. Furthermore, the formation of a heterogeneous morphology by segregation and crystallization leads to enhanced strength and toughness compared to the respective epoxy/PCL composites. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：40 / 49
页数：10
相关论文
共 52 条
[51]   Copolymer Networks Based on Poly(ω-pentadecalactone) and Poly(ε-caprolactone) Segments as a Versatile Triple-Shape Polymer System [J].
Zotzmann, Joerg ;
Behl, Marc ;
Feng, Yakai ;
Lendlein, Andreas .
ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (20) :3583-3594
[52]   Reversible Triple-Shape Effect of Polymer Networks Containing Polypentadecalactone- and Poly(ε-caprolactone)-Segments [J].
Zotzmann, Joerg ;
Behl, Marc ;
Hofmann, Dieter ;
Lendlein, Andreas .
ADVANCED MATERIALS, 2010, 22 (31) :3424-3429
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