Supramolecular polyurethane networks containing pyridine moieties for shape memory materials

Shaojun Chen; Jinlian Hu; Chun wah Yuen; Laikuen Chan

doi:10.1016/j.matlet.2009.03.028

Supramolecular polyurethane networks containing pyridine moieties for shape memory materials

Shaojun Chen, Jinlian Hu, Chun wah Yuen, Laikuen Chan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

58 Citations (Scopus)

Abstract

Fabricating smart materials with supramolecular switch is an attractive research topic in recent years. In this communication, shape memory polyurethane supramolecular networks are synthesized from BINA, HDI, MDI and BDO. DSC results show that amorphous soft phase and hard phase are formed through different intermolecular hydrogen bondings at the regions of pyridine units and urethane groups in the resulted BINA containing polyurethanes (BIN-PUs). Moreover, DMA results show that the BIN-PUs have higher modulus ratio (Eg/ Er> 400) and much higher maximum tanδ. These results determine that the BIN-PUs exhibit excellent shape memory effect: higher shape fixity (> 97%) and higher shape recovery (> 91.7%).

Original language	English
Pages (from-to)	1462-1464
Number of pages	3
Journal	Materials Letters
Volume	63
Issue number	17
DOIs	https://doi.org/10.1016/j.matlet.2009.03.028
Publication status	Published - 15 Jul 2009

Keywords

Polyurethane
Pyridine
Shape memory materials
Supramolecular

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

More information

10.1016/j.matlet.2009.03.028

Cite this

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title = "Supramolecular polyurethane networks containing pyridine moieties for shape memory materials",

abstract = "Fabricating smart materials with supramolecular switch is an attractive research topic in recent years. In this communication, shape memory polyurethane supramolecular networks are synthesized from BINA, HDI, MDI and BDO. DSC results show that amorphous soft phase and hard phase are formed through different intermolecular hydrogen bondings at the regions of pyridine units and urethane groups in the resulted BINA containing polyurethanes (BIN-PUs). Moreover, DMA results show that the BIN-PUs have higher modulus ratio (Eg/ Er> 400) and much higher maximum tanδ. These results determine that the BIN-PUs exhibit excellent shape memory effect: higher shape fixity (> 97%) and higher shape recovery (> 91.7%).",

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AU - Chen, Shaojun

AU - Hu, Jinlian

AU - Yuen, Chun wah

AU - Chan, Laikuen

PY - 2009/7/15

Y1 - 2009/7/15

N2 - Fabricating smart materials with supramolecular switch is an attractive research topic in recent years. In this communication, shape memory polyurethane supramolecular networks are synthesized from BINA, HDI, MDI and BDO. DSC results show that amorphous soft phase and hard phase are formed through different intermolecular hydrogen bondings at the regions of pyridine units and urethane groups in the resulted BINA containing polyurethanes (BIN-PUs). Moreover, DMA results show that the BIN-PUs have higher modulus ratio (Eg/ Er> 400) and much higher maximum tanδ. These results determine that the BIN-PUs exhibit excellent shape memory effect: higher shape fixity (> 97%) and higher shape recovery (> 91.7%).

AB - Fabricating smart materials with supramolecular switch is an attractive research topic in recent years. In this communication, shape memory polyurethane supramolecular networks are synthesized from BINA, HDI, MDI and BDO. DSC results show that amorphous soft phase and hard phase are formed through different intermolecular hydrogen bondings at the regions of pyridine units and urethane groups in the resulted BINA containing polyurethanes (BIN-PUs). Moreover, DMA results show that the BIN-PUs have higher modulus ratio (Eg/ Er> 400) and much higher maximum tanδ. These results determine that the BIN-PUs exhibit excellent shape memory effect: higher shape fixity (> 97%) and higher shape recovery (> 91.7%).

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DO - 10.1016/j.matlet.2009.03.028

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JO - Materials Letters

JF - Materials Letters

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ER -

Supramolecular polyurethane networks containing pyridine moieties for shape memory materials

Abstract

Keywords

ASJC Scopus subject areas

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