Water-sorption behavior of p-phenylene diamine-based polyimide thin films

Jongchul Seo, Anna Lee, Choonkeun Lee, Haksoo Han

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Four different p-PDA-based polyimide thin films were prepared from their respective poly(amic acid)s through thermal imidization at 400°C: poly(p-phenylene pyromellitimide) (PMDA-PDA); poly(p-phenylene biphenyltetra carboximide) (BPDA-PDA); poly(p-phenylene 3,3′,4,4′-oxydiphthalimide) (ODPA-PDA); and poly(p-phenylene 4,4′-hexafluoroisopropylidene diphthalimide) (6FDA-PDA). Water-sorption behaviors of polyimide films were gravimetrically investigated at 25°C and 22-100% relative humidity by using the modified electromicrobalance (Thin Film Diffusion Analyzer). The diffusion coefficients of water for the polyimides varies in the range of 1.6 to 10.5 × 10-10 cm2/s, and are in the increasing order: BPDA-PDA < PMDA-PDA approx. ODPA-PDA < 6FDA-PDA. The water uptakes of polyimides vary from 1.46 to 5.80 wt %, and are in the increasing order: BPDA-PDA < ODPA-PDA < 6FDA-PDA < PMDA-PDA. The water-sorption behaviors for the p-PDA-based polyimides are closely related to the morphological structure; specifically, the diffusion coefficients in p-PDA-based polyimide thin films are closely related to the in-plane orientation and mean intermolecular distance, whereas the water uptakes are affected by the packing order.

Original languageEnglish
Pages (from-to)1315-1323
Number of pages9
JournalJournal of Applied Polymer Science
Volume76
Issue number8
DOIs
Publication statusPublished - 2000 Jan 1

Fingerprint

Diamines
Personal digital assistants
Polyimides
Sorption
Thin films
Water

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Water-sorption behavior of p-phenylene diamine-based polyimide thin films",
abstract = "Four different p-PDA-based polyimide thin films were prepared from their respective poly(amic acid)s through thermal imidization at 400°C: poly(p-phenylene pyromellitimide) (PMDA-PDA); poly(p-phenylene biphenyltetra carboximide) (BPDA-PDA); poly(p-phenylene 3,3′,4,4′-oxydiphthalimide) (ODPA-PDA); and poly(p-phenylene 4,4′-hexafluoroisopropylidene diphthalimide) (6FDA-PDA). Water-sorption behaviors of polyimide films were gravimetrically investigated at 25°C and 22-100{\%} relative humidity by using the modified electromicrobalance (Thin Film Diffusion Analyzer). The diffusion coefficients of water for the polyimides varies in the range of 1.6 to 10.5 × 10-10 cm2/s, and are in the increasing order: BPDA-PDA < PMDA-PDA approx. ODPA-PDA < 6FDA-PDA. The water uptakes of polyimides vary from 1.46 to 5.80 wt {\%}, and are in the increasing order: BPDA-PDA < ODPA-PDA < 6FDA-PDA < PMDA-PDA. The water-sorption behaviors for the p-PDA-based polyimides are closely related to the morphological structure; specifically, the diffusion coefficients in p-PDA-based polyimide thin films are closely related to the in-plane orientation and mean intermolecular distance, whereas the water uptakes are affected by the packing order.",
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Water-sorption behavior of p-phenylene diamine-based polyimide thin films. / Seo, Jongchul; Lee, Anna; Lee, Choonkeun; Han, Haksoo.

In: Journal of Applied Polymer Science, Vol. 76, No. 8, 01.01.2000, p. 1315-1323.

Research output: Contribution to journalArticle

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AU - Seo, Jongchul

AU - Lee, Anna

AU - Lee, Choonkeun

AU - Han, Haksoo

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