Recyclable, Self-Healing, Thermadapt Triple-Shape Memory Polymers Based on Dual Dynamic Bonds

2020 ◽  
Vol 12 (8) ◽  
pp. 9833-9841 ◽  
Author(s):  
Huan Zhang ◽  
Dong Wang ◽  
Ningning Wu ◽  
Cuihua Li ◽  
Caizhen Zhu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymers ◽  
Self Healing ◽  
Triple Shape Memory

Designing Multiple-Shape Memory Polymers with Miscible Polymer Blends: Evidence and Origins of a Triple-Shape Memory Effect for Miscible PLLA/PMMA Blends

2014 ◽  
Vol 47 (19) ◽  
pp. 6791-6803 ◽  
Author(s):  
Cédric Samuel ◽  
Sophie Barrau ◽  
Jean-Marc Lefebvre ◽  
Jean-Marie Raquez ◽  
Philippe Dubois
Keyword(s):  
Polymer Blends ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Shape Memory Polymers ◽  
Miscible Polymer Blends ◽  
Triple Shape Memory ◽  
Pmma Blends

scholarly journals The Effect of 4-Octyldecyloxybenzoic Acid on Liquid-Crystalline Polyurethane Composites with Triple-Shape Memory and Self-Healing Properties

2016 ◽  
Author(s):  
Jianfeng Ban ◽  
Linjiang Zhu ◽  
Shaojun Chen ◽  
Yiping Wang
Keyword(s):  
Shape Memory ◽  
Liquid Crystalline ◽  
Crystallization Rate ◽  
Self Healing ◽  
Two Phase ◽  
Structure Morphology ◽  
Shape Memory Properties ◽  
Triple Shape Memory ◽  
Polyurethane Composites ◽  
Shape Memory Polyurethane

To better understand the shape memory materials and self-healing materials, a new series of liquid-crystalline shape memory polyurethane (LC-SMPU) composites, named SMPU-OOBAm, were successfully prepared by incorporating 4-octyldecyloxybenzoic acid (OOBA) into the PEG-based SMPU. The effect of OOBA on the structure, morphology and properties has been carefully investigated. The results demonstrate that SMPU-OOBAm have liquid crystalline properties, triple-shape memory properties and self-healing properties. The incorporated OOBA promotes the crystallizability of both soft and hard segments of SMPU, and the crystallization rate of the hard segment of SMPU decreases when the OOBA-content increases. Additionally, the SMPU-OOBAm forms a two-phase separated structure (SMPU phase and OOBA phase), and it shows two-step modulus changes upon heating. Therefore, the SMPU-OOBAm shows triple-shape memory behavior, and the shape recovery ratio decreases with an increase in the OOBA content. Finally, SMPU-OOBAm shows self-healing properties. The new mechanism can be ascribed to the heating-induced “bleeding” of OOBA in the liquid crystalline state and the subsequent re-crystallization upon cooling. This successful combination of liquid crystalline properties, triple-shape memory properties and self-healing properties make the SMPU-OOBAm composites with many promise applications in smart optical devices, smart electronic devices and smart sensors.

A Facile Approach toward Thermoplastic Triple‐Shape Memory Polymers

2020 ◽  
pp. 2000508
Author(s):  
Zhenlei Zhang ◽  
Jiang Du ◽  
Wanwen Shan ◽  
Tianbin Ren ◽  
Zheng Lu
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymers ◽  
Triple Shape Memory

Dually Actuated Triple Shape Memory Polymers of Cross-Linked Polycyclooctene–Carbon Nanotube/Polyethylene Nanocomposites

2014 ◽  
Vol 6 (22) ◽  
pp. 20051-20059 ◽  
Author(s):  
Zhenwen Wang ◽  
Jun Zhao ◽  
Min Chen ◽  
Minhao Yang ◽  
Luyang Tang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Shape Memory ◽  
Shape Memory Polymers ◽  
Triple Shape Memory

scholarly journals Synthesis of cross-linked triple shape memory polyurethane with self-healing functionalities

2021 ◽  
Vol 96 ◽  
pp. 107099
Author(s):  
Wenwen Zhang ◽  
Xuefei Leng ◽  
Mengyun Gao ◽  
Zhiyong Wei ◽  
Yiying Wang ◽  
...  
Keyword(s):  
Shape Memory ◽  
Self Healing ◽  
Triple Shape Memory ◽  
Shape Memory Polyurethane
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