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

4 Citations (Scopus)


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
Issue number11
Publication statusPublished - 2017 Nov 1

All Science Journal Classification (ASJC) codes

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

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