Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions
High toughness with self-healing ability has become the ultimate goal in materials research. Herein, thermoplastic polyurethane (TPU) was linked via host-guest (HG) interactions to increase its mechanical properties and self-healing ability. TPU linked via HG interactions was prepared by the step-gr...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-06-01
|
Series: | Polymers |
Subjects: | |
Online Access: | https://www.mdpi.com/2073-4360/12/6/1393 |
id |
doaj-9a5292ef59af4fc5a7e178cd94564af2 |
---|---|
record_format |
Article |
spelling |
doaj-9a5292ef59af4fc5a7e178cd94564af22020-11-25T03:45:16ZengMDPI AGPolymers2073-43602020-06-01121393139310.3390/polym12061393Self-Healing Thermoplastic Polyurethane Linked via Host-Guest InteractionsChangming Jin0Garry Sinawang1Motofumi Osaki2Yongtai Zheng3Hiroyasu Yamaguchi4Akira Harada5Yoshinori Takashima6Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanDepartment of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanDepartment of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanProject Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanDepartment of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanThe Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, JapanDepartment of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, JapanHigh toughness with self-healing ability has become the ultimate goal in materials research. Herein, thermoplastic polyurethane (TPU) was linked via host-guest (HG) interactions to increase its mechanical properties and self-healing ability. TPU linked via HG interactions was prepared by the step-growth bulk polymerization of hexamethylene diisocyanate (HDI), tetraethylene glycol (TEG), and HG interactions between permethylated amino βCD (PMeAmβCD) and adamantane amine (AdAm). TPU linked with 10 mol% of HG interactions (HG(10)) showed the highest rupture stress and fracture energy (<i>G</i><sub>F</sub>) of 11 MPa and 25 MJ·m<sup>−3</sup>, which are almost 40-fold and 1500-fold, respectively, higher than those of non-functionalized TEG-based TPU (PU). Additionally, damaged HG(10) shows 87% recovery after heated for 7 min at 80 °C, and completely cut HG(10) shows 80% recovery after 60 min of reattachment at same temperature. The HG interactions in TPU are an important factor in stress dispersion, increasing both its mechanical and self-healing properties. The TPU linked via HG interactions has great promise for use in industrial materials in the near future.https://www.mdpi.com/2073-4360/12/6/1393thermoplastic polyurethaneelastomertough materialsself-healingcyclodextrinhost-guest interactions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Changming Jin Garry Sinawang Motofumi Osaki Yongtai Zheng Hiroyasu Yamaguchi Akira Harada Yoshinori Takashima |
spellingShingle |
Changming Jin Garry Sinawang Motofumi Osaki Yongtai Zheng Hiroyasu Yamaguchi Akira Harada Yoshinori Takashima Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions Polymers thermoplastic polyurethane elastomer tough materials self-healing cyclodextrin host-guest interactions |
author_facet |
Changming Jin Garry Sinawang Motofumi Osaki Yongtai Zheng Hiroyasu Yamaguchi Akira Harada Yoshinori Takashima |
author_sort |
Changming Jin |
title |
Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions |
title_short |
Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions |
title_full |
Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions |
title_fullStr |
Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions |
title_full_unstemmed |
Self-Healing Thermoplastic Polyurethane Linked via Host-Guest Interactions |
title_sort |
self-healing thermoplastic polyurethane linked via host-guest interactions |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-06-01 |
description |
High toughness with self-healing ability has become the ultimate goal in materials research. Herein, thermoplastic polyurethane (TPU) was linked via host-guest (HG) interactions to increase its mechanical properties and self-healing ability. TPU linked via HG interactions was prepared by the step-growth bulk polymerization of hexamethylene diisocyanate (HDI), tetraethylene glycol (TEG), and HG interactions between permethylated amino βCD (PMeAmβCD) and adamantane amine (AdAm). TPU linked with 10 mol% of HG interactions (HG(10)) showed the highest rupture stress and fracture energy (<i>G</i><sub>F</sub>) of 11 MPa and 25 MJ·m<sup>−3</sup>, which are almost 40-fold and 1500-fold, respectively, higher than those of non-functionalized TEG-based TPU (PU). Additionally, damaged HG(10) shows 87% recovery after heated for 7 min at 80 °C, and completely cut HG(10) shows 80% recovery after 60 min of reattachment at same temperature. The HG interactions in TPU are an important factor in stress dispersion, increasing both its mechanical and self-healing properties. The TPU linked via HG interactions has great promise for use in industrial materials in the near future. |
topic |
thermoplastic polyurethane elastomer tough materials self-healing cyclodextrin host-guest interactions |
url |
https://www.mdpi.com/2073-4360/12/6/1393 |
work_keys_str_mv |
AT changmingjin selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT garrysinawang selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT motofumiosaki selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT yongtaizheng selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT hiroyasuyamaguchi selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT akiraharada selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions AT yoshinoritakashima selfhealingthermoplasticpolyurethanelinkedviahostguestinteractions |
_version_ |
1724510490918387712 |