Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif

Dong Soo Lee; Yong Seok Choi; Jae Hyuk Hwang; Jin Hyeong Lee; Woohwa Lee; Suk Kyun Ahn; Sungmin Park; Jung Hyun Lee; Yong Seok Kim; Dong Gyun Kim

doi:10.1021/acsapm.1c00667

Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif

Dong Soo Lee, Yong Seok Choi, Jae Hyuk Hwang, Jin Hyeong Lee, Woohwa Lee, Suk Kyun Ahn, Sungmin Park, Jung Hyun Lee, Yong Seok Kim, Dong Gyun Kim

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Here we describe the use of thiourea linkage as a hydrogen (H) bonding and dynamic covalent dual-functional motif to enhance mechanical versatility in biomimetic polymer networks (BMPNs). By controlling the dynamic thiourea bond exchanges in the covalently cross-linked BMPNs, greatly improved malleability and reprocessability are obtained while maintaining their assorted mechanical characteristics of stiffness, strength, toughness, resilience, and adaptability. Such characteristics enable versatile shape manipulation and mechanical functions of the BMPN-based 3D structures, including shape reconfiguration, welding, shape memory, load bearing, deformation/recovery, repair, and reprocessing.

Original language	English
Pages (from-to)	3714-3720
Number of pages	7
Journal	ACS Applied Polymer Materials
Volume	3
Issue number	8
DOIs	https://doi.org/10.1021/acsapm.1c00667
Publication status	Published - 2021 Aug 13

Keywords

biomimetic polymer networks
covalent adaptable networks
dynamic covalent bond
hydrogen (H) bond
thiourea

ASJC Scopus subject areas

Polymers and Plastics
Process Chemistry and Technology
Organic Chemistry

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10.1021/acsapm.1c00667

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title = "Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif",

abstract = "Here we describe the use of thiourea linkage as a hydrogen (H) bonding and dynamic covalent dual-functional motif to enhance mechanical versatility in biomimetic polymer networks (BMPNs). By controlling the dynamic thiourea bond exchanges in the covalently cross-linked BMPNs, greatly improved malleability and reprocessability are obtained while maintaining their assorted mechanical characteristics of stiffness, strength, toughness, resilience, and adaptability. Such characteristics enable versatile shape manipulation and mechanical functions of the BMPN-based 3D structures, including shape reconfiguration, welding, shape memory, load bearing, deformation/recovery, repair, and reprocessing. ",

keywords = "biomimetic polymer networks, covalent adaptable networks, dynamic covalent bond, hydrogen (H) bond, thiourea",

author = "Lee, {Dong Soo} and Choi, {Yong Seok} and Hwang, {Jae Hyuk} and Lee, {Jin Hyeong} and Woohwa Lee and Ahn, {Suk Kyun} and Sungmin Park and Lee, {Jung Hyun} and Kim, {Yong Seok} and Kim, {Dong Gyun}",

note = "Funding Information: This work was supported by Creative Materials Discovery Program (2019M3D1A210391621) and the Nano·Material Technology Development Program (2021M3H4A1A03041426) through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT, and Korea Research Institute of Chemical Technology (KRICT) core project (SS2121-20). Publisher Copyright: {\textcopyright} 2021 American Chemical Society.",

year = "2021",

month = aug,

day = "13",

doi = "10.1021/acsapm.1c00667",

language = "English",

volume = "3",

pages = "3714--3720",

journal = "ACS Applied Polymer Materials",

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publisher = "American Chemical Society",

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T1 - Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif

AU - Lee, Dong Soo

AU - Choi, Yong Seok

AU - Hwang, Jae Hyuk

AU - Lee, Jin Hyeong

AU - Lee, Woohwa

AU - Ahn, Suk Kyun

AU - Park, Sungmin

AU - Lee, Jung Hyun

AU - Kim, Yong Seok

AU - Kim, Dong Gyun

N1 - Funding Information: This work was supported by Creative Materials Discovery Program (2019M3D1A210391621) and the Nano·Material Technology Development Program (2021M3H4A1A03041426) through the National Research Foundation of Korea (NRF) funded by Ministry of Science and ICT, and Korea Research Institute of Chemical Technology (KRICT) core project (SS2121-20). Publisher Copyright: © 2021 American Chemical Society.

PY - 2021/8/13

Y1 - 2021/8/13

N2 - Here we describe the use of thiourea linkage as a hydrogen (H) bonding and dynamic covalent dual-functional motif to enhance mechanical versatility in biomimetic polymer networks (BMPNs). By controlling the dynamic thiourea bond exchanges in the covalently cross-linked BMPNs, greatly improved malleability and reprocessability are obtained while maintaining their assorted mechanical characteristics of stiffness, strength, toughness, resilience, and adaptability. Such characteristics enable versatile shape manipulation and mechanical functions of the BMPN-based 3D structures, including shape reconfiguration, welding, shape memory, load bearing, deformation/recovery, repair, and reprocessing.

AB - Here we describe the use of thiourea linkage as a hydrogen (H) bonding and dynamic covalent dual-functional motif to enhance mechanical versatility in biomimetic polymer networks (BMPNs). By controlling the dynamic thiourea bond exchanges in the covalently cross-linked BMPNs, greatly improved malleability and reprocessability are obtained while maintaining their assorted mechanical characteristics of stiffness, strength, toughness, resilience, and adaptability. Such characteristics enable versatile shape manipulation and mechanical functions of the BMPN-based 3D structures, including shape reconfiguration, welding, shape memory, load bearing, deformation/recovery, repair, and reprocessing.

KW - biomimetic polymer networks

KW - covalent adaptable networks

KW - dynamic covalent bond

KW - hydrogen (H) bond

KW - thiourea

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U2 - 10.1021/acsapm.1c00667

DO - 10.1021/acsapm.1c00667

M3 - Article

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SN - 2637-6105

VL - 3

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JO - ACS Applied Polymer Materials

JF - ACS Applied Polymer Materials

IS - 8

ER -

Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif

Abstract

Keywords

ASJC Scopus subject areas

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