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

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › 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 (E_g/E_r >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%). © 2009 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	1462-1464
Journal	Materials Letters
Volume	63
Issue number	17
Online published	25 Mar 2009
DOIs	https://doi.org/10.1016/j.matlet.2009.03.028
Publication status	Published - 15 Jul 2009
Externally published	Yes

Research Keywords

Polyurethane
Pyridine
Shape memory materials
Supramolecular

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10.1016/j.matlet.2009.03.028

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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\%). {\textcopyright} 2009 Elsevier B.V. All rights reserved.",

keywords = "Polyurethane, Pyridine, Shape memory materials, Supramolecular",

author = "Shaojun Chen and Jinlian Hu and Chun-wah Yuen and Laikuen Chan",

year = "2009",

month = jul,

day = "15",

doi = "10.1016/j.matlet.2009.03.028",

language = "English",

volume = "63",

pages = "1462--1464",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "17",

}

TY - JOUR

T1 - Supramolecular polyurethane networks containing pyridine moieties for shape memory materials

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%). © 2009 Elsevier B.V. All rights reserved.

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%). © 2009 Elsevier B.V. All rights reserved.

KW - Polyurethane

KW - Pyridine

KW - Shape memory materials

KW - Supramolecular

UR - https://www.scopus.com/pages/publications/67349249134

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-67349249134&origin=recordpage

U2 - 10.1016/j.matlet.2009.03.028

DO - 10.1016/j.matlet.2009.03.028

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 63

SP - 1462

EP - 1464

JO - Materials Letters

JF - Materials Letters

IS - 17

ER -

Supramolecular polyurethane networks containing pyridine moieties for shape memory materials

Abstract

Research Keywords

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