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

被引：100

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

页码：6132 / 6141

页数：10

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