Flexible all-aromatic polyesterimide films with high glass transition temperatures

Qingbao Guan; Ben Norder; Theo J. Dingemans

doi:10.1002/app.44774

Flexible all-aromatic polyesterimide films with high glass transition temperatures

Qingbao Guan, Ben Norder, Theo J. Dingemans^*

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

A series all-aromatic poly(esterimide)s with different molar ratios of N-(3′-hydroxyphenyl)-trimellitimide (IM) and 4-hydroxybenzoic acid (HBA) (IM/HBA = 0.3/0.7 and 0.7/0.3) was prepared with the aim to design flexible high T_g films. Melt-pressed films, either from high molecular weight polymer or cured phenylethynyl precursor oligomers, exhibit T_gs in the range of 200 °C to 242 °C and are brittle. After a thermal stretching procedure, the films became remarkably flexible and very easy to handle. In addition, the thermally stretched 3-IM/7-HBA and 7-IM/3-HBA films show tensile strengths of 108 MPa and 169 MPa, respectively. Thermal treatment increased the T_g of 3-IM/7-HBA from 205 °C to 248 °C, whereas the T_g of 7-IM/3-HBA increased from 230 °C to 260 °C.

Original language	English
Article number	44774
Number of pages	14
Journal	Journal of Applied Polymer Science
Volume	134
Issue number	18
DOIs	https://doi.org/10.1002/app.44774
Publication status	Published - 10 May 2017

Keywords

aromatic thermoset polyesters
mechanical properties
thermal properties

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10.1002/app.44774

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title = "Flexible all-aromatic polyesterimide films with high glass transition temperatures",

abstract = "A series all-aromatic poly(esterimide)s with different molar ratios of N-(3′-hydroxyphenyl)-trimellitimide (IM) and 4-hydroxybenzoic acid (HBA) (IM/HBA = 0.3/0.7 and 0.7/0.3) was prepared with the aim to design flexible high Tg films. Melt-pressed films, either from high molecular weight polymer or cured phenylethynyl precursor oligomers, exhibit Tgs in the range of 200 °C to 242 °C and are brittle. After a thermal stretching procedure, the films became remarkably flexible and very easy to handle. In addition, the thermally stretched 3-IM/7-HBA and 7-IM/3-HBA films show tensile strengths of 108 MPa and 169 MPa, respectively. Thermal treatment increased the Tg of 3-IM/7-HBA from 205 °C to 248 °C, whereas the Tg of 7-IM/3-HBA increased from 230 °C to 260 °C.",

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AU - Guan, Qingbao

AU - Norder, Ben

AU - Dingemans, Theo J.

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Y1 - 2017/5/10

N2 - A series all-aromatic poly(esterimide)s with different molar ratios of N-(3′-hydroxyphenyl)-trimellitimide (IM) and 4-hydroxybenzoic acid (HBA) (IM/HBA = 0.3/0.7 and 0.7/0.3) was prepared with the aim to design flexible high Tg films. Melt-pressed films, either from high molecular weight polymer or cured phenylethynyl precursor oligomers, exhibit Tgs in the range of 200 °C to 242 °C and are brittle. After a thermal stretching procedure, the films became remarkably flexible and very easy to handle. In addition, the thermally stretched 3-IM/7-HBA and 7-IM/3-HBA films show tensile strengths of 108 MPa and 169 MPa, respectively. Thermal treatment increased the Tg of 3-IM/7-HBA from 205 °C to 248 °C, whereas the Tg of 7-IM/3-HBA increased from 230 °C to 260 °C.

AB - A series all-aromatic poly(esterimide)s with different molar ratios of N-(3′-hydroxyphenyl)-trimellitimide (IM) and 4-hydroxybenzoic acid (HBA) (IM/HBA = 0.3/0.7 and 0.7/0.3) was prepared with the aim to design flexible high Tg films. Melt-pressed films, either from high molecular weight polymer or cured phenylethynyl precursor oligomers, exhibit Tgs in the range of 200 °C to 242 °C and are brittle. After a thermal stretching procedure, the films became remarkably flexible and very easy to handle. In addition, the thermally stretched 3-IM/7-HBA and 7-IM/3-HBA films show tensile strengths of 108 MPa and 169 MPa, respectively. Thermal treatment increased the Tg of 3-IM/7-HBA from 205 °C to 248 °C, whereas the Tg of 7-IM/3-HBA increased from 230 °C to 260 °C.

KW - aromatic thermoset polyesters

KW - mechanical properties

KW - thermal properties

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Flexible all-aromatic polyesterimide films with high glass transition temperatures

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Keywords

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