A Thermoreversible Supramolecular Polyurethane with Excellent Healing Ability at 45 °C

被引：97
作者：
Feula, Antonio [1 ]
Pethybridge, Alexander [1 ]
Giannakopoulos, Ioannis [2 ]
Tang, Xuegang [2 ]
Chippindale, Ann [1 ]
Siviour, Clive R. [2 ]
Buckley, C. Paul [2 ]
Hamley, Ian W. [1 ]
Hayes, Wayne [1 ]
机构：
[1] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England
[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England
来源：
MACROMOLECULES | 2015年 / 48卷 / 17期
基金：
英国工程与自然科学研究理事会;
关键词：
PI-PI STACKING; POLYMER; DESIGN; RHEOLOGY; STRENGTH; BEHAVIOR; SOFT;
D O I：
10.1021/acs.macromol.5b01162
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We report the synthesis and characterization of a healable, elastomeric shape recovery supramolecular polyurethane whose properties result from self-complementary pi-pi stacking and hydrogen bonding interactions plus phase separation. ESEM analysis and photographic images have revealed that this material can heal at 45 degrees C in 15 min to recover the mechanical properties of the pristine material with healing efficiencies >99%. This supramolecular polyurethane is also able to recover an applied strain of 25% within S min of release of the load.
引用
收藏
页码：6132 / 6141
页数：10
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