Low dielectric transparent poly(amide-imide) thin film with nano scale porous structure

Juheon Lee, Sangrae Lee, Kwangin Kim, Taewon Yoo, Gunhwi Kim, Haksoo Han

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A transparent poly(amide-imide) (PAI) was synthesized with good thermal and optical properties and after that silica nano particles were introduced and removed for nano porous polymer matrix. The successful synthesis of PAI with nano scale porous structure was confirmed with FT-IR and FE-SEM measurement. The effects of free volume of polymer on thermal properties were measured with TGA and DSC. This physically modified polymer matrix showed increased thermal degradation and glass transition temperature over 250 °C. In the case of optical properties, UV-Vis and yellow index were measured and PAI with nano porous structure showed transparent colorless properties with light transmittance in the range of 80-40% and yellow index 2.1-1.1. The results also showed low dielectric constant in the range of 3.2-2.5 and contact angles that of 70-73°.

Original languageEnglish
Pages (from-to)1115-1120
Number of pages6
JournalMacromolecular Research
Volume25
Issue number11
DOIs
Publication statusPublished - 2017 Nov 1

Fingerprint

Polyamideimides
Imides
Amides
Polymer matrix
Thin films
Thermodynamic properties
Optical properties
Free volume
Silicon Dioxide
Contact angle
Polymers
Pyrolysis
Permittivity
Silica
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Lee, Juheon ; Lee, Sangrae ; Kim, Kwangin ; Yoo, Taewon ; Kim, Gunhwi ; Han, Haksoo. / Low dielectric transparent poly(amide-imide) thin film with nano scale porous structure. In: Macromolecular Research. 2017 ; Vol. 25, No. 11. pp. 1115-1120.
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abstract = "A transparent poly(amide-imide) (PAI) was synthesized with good thermal and optical properties and after that silica nano particles were introduced and removed for nano porous polymer matrix. The successful synthesis of PAI with nano scale porous structure was confirmed with FT-IR and FE-SEM measurement. The effects of free volume of polymer on thermal properties were measured with TGA and DSC. This physically modified polymer matrix showed increased thermal degradation and glass transition temperature over 250 °C. In the case of optical properties, UV-Vis and yellow index were measured and PAI with nano porous structure showed transparent colorless properties with light transmittance in the range of 80-40{\%} and yellow index 2.1-1.1. The results also showed low dielectric constant in the range of 3.2-2.5 and contact angles that of 70-73°.",
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Low dielectric transparent poly(amide-imide) thin film with nano scale porous structure. / Lee, Juheon; Lee, Sangrae; Kim, Kwangin; Yoo, Taewon; Kim, Gunhwi; Han, Haksoo.

In: Macromolecular Research, Vol. 25, No. 11, 01.11.2017, p. 1115-1120.

Research output: Contribution to journalArticle

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T1 - Low dielectric transparent poly(amide-imide) thin film with nano scale porous structure

AU - Lee, Juheon

AU - Lee, Sangrae

AU - Kim, Kwangin

AU - Yoo, Taewon

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AU - Han, Haksoo

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AB - A transparent poly(amide-imide) (PAI) was synthesized with good thermal and optical properties and after that silica nano particles were introduced and removed for nano porous polymer matrix. The successful synthesis of PAI with nano scale porous structure was confirmed with FT-IR and FE-SEM measurement. The effects of free volume of polymer on thermal properties were measured with TGA and DSC. This physically modified polymer matrix showed increased thermal degradation and glass transition temperature over 250 °C. In the case of optical properties, UV-Vis and yellow index were measured and PAI with nano porous structure showed transparent colorless properties with light transmittance in the range of 80-40% and yellow index 2.1-1.1. The results also showed low dielectric constant in the range of 3.2-2.5 and contact angles that of 70-73°.

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