Study of porous structure of polyimide films resulting by using various methods

I. A. Ronova; O. V. Sinitsyna; S. S. Abramchuk; A. Yu Nikolaev; S. Chisca; I. Sava; M. Bruma

doi:10.1016/j.supflu.2012.06.018

Study of porous structure of polyimide films resulting by using various methods

I. A. Ronova, O. V. Sinitsyna, S. S. Abramchuk, A. Yu Nikolaev, S. Chisca, I. Sava, M. Bruma^*

^*Corresponding author for this work

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

14 Scopus citations

Abstract

The change of porous structure of polyimide films was studied with regard to the method of processing (swelling in supercritical carbon dioxide or addition of a salt during the synthesis followed by washing the polymer film to remove that salt), conformational rigidity, presence of fluorine atoms in the repeating unit, parameters of swelling with carbon dioxide and the quantity of salt which was added during polyimide synthesis. By using atomic force microscopy, transmission electron microscopy and scanning electron microscopy in this study, it was shown that both methods of processing the polymer films allowed the formation of a porous structure whose parameters depended on the chemical structure of the polyimide and on the way to process the polymer film.

Original language	English (US)
Pages (from-to)	146-155
Number of pages	10
Journal	Journal of Supercritical Fluids
Volume	70
DOIs	https://doi.org/10.1016/j.supflu.2012.06.018
State	Published - Oct 2012
Externally published	Yes

Bibliographical note

Funding Information:
The financial support provided to one of the authors (MB) by the European Union's Seventh Framework Programme (FP7/2007–2013) under grant agreement no. 264115 – STREAM is gratefully acknowledged. The authors thank A. Lopatin and L. Nikitin for experiments on swelling in sc-CO 2 .

Keywords

Free volume
Lithium chloride pore-forming agent
Polyimide films
Porous structure
Swelling in supercritical CO

ASJC Scopus subject areas

General Chemical Engineering
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1016/j.supflu.2012.06.018

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title = "Study of porous structure of polyimide films resulting by using various methods",

abstract = "The change of porous structure of polyimide films was studied with regard to the method of processing (swelling in supercritical carbon dioxide or addition of a salt during the synthesis followed by washing the polymer film to remove that salt), conformational rigidity, presence of fluorine atoms in the repeating unit, parameters of swelling with carbon dioxide and the quantity of salt which was added during polyimide synthesis. By using atomic force microscopy, transmission electron microscopy and scanning electron microscopy in this study, it was shown that both methods of processing the polymer films allowed the formation of a porous structure whose parameters depended on the chemical structure of the polyimide and on the way to process the polymer film.",

keywords = "Free volume, Lithium chloride pore-forming agent, Polyimide films, Porous structure, Swelling in supercritical CO",

author = "Ronova, {I. A.} and Sinitsyna, {O. V.} and Abramchuk, {S. S.} and Nikolaev, {A. Yu} and S. Chisca and I. Sava and M. Bruma",

note = "Funding Information: The financial support provided to one of the authors (MB) by the European Union's Seventh Framework Programme (FP7/2007–2013) under grant agreement no. 264115 – STREAM is gratefully acknowledged. The authors thank A. Lopatin and L. Nikitin for experiments on swelling in sc-CO 2 .",

year = "2012",

month = oct,

doi = "10.1016/j.supflu.2012.06.018",

language = "English (US)",

volume = "70",

pages = "146--155",

journal = "Journal of Supercritical Fluids",

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T1 - Study of porous structure of polyimide films resulting by using various methods

AU - Ronova, I. A.

AU - Sinitsyna, O. V.

AU - Abramchuk, S. S.

AU - Nikolaev, A. Yu

AU - Chisca, S.

AU - Sava, I.

AU - Bruma, M.

N1 - Funding Information: The financial support provided to one of the authors (MB) by the European Union's Seventh Framework Programme (FP7/2007–2013) under grant agreement no. 264115 – STREAM is gratefully acknowledged. The authors thank A. Lopatin and L. Nikitin for experiments on swelling in sc-CO 2 .

PY - 2012/10

Y1 - 2012/10

N2 - The change of porous structure of polyimide films was studied with regard to the method of processing (swelling in supercritical carbon dioxide or addition of a salt during the synthesis followed by washing the polymer film to remove that salt), conformational rigidity, presence of fluorine atoms in the repeating unit, parameters of swelling with carbon dioxide and the quantity of salt which was added during polyimide synthesis. By using atomic force microscopy, transmission electron microscopy and scanning electron microscopy in this study, it was shown that both methods of processing the polymer films allowed the formation of a porous structure whose parameters depended on the chemical structure of the polyimide and on the way to process the polymer film.

AB - The change of porous structure of polyimide films was studied with regard to the method of processing (swelling in supercritical carbon dioxide or addition of a salt during the synthesis followed by washing the polymer film to remove that salt), conformational rigidity, presence of fluorine atoms in the repeating unit, parameters of swelling with carbon dioxide and the quantity of salt which was added during polyimide synthesis. By using atomic force microscopy, transmission electron microscopy and scanning electron microscopy in this study, it was shown that both methods of processing the polymer films allowed the formation of a porous structure whose parameters depended on the chemical structure of the polyimide and on the way to process the polymer film.

KW - Free volume

KW - Lithium chloride pore-forming agent

KW - Polyimide films

KW - Porous structure

KW - Swelling in supercritical CO

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DO - 10.1016/j.supflu.2012.06.018

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SN - 0896-8446

VL - 70

SP - 146

EP - 155

JO - Journal of Supercritical Fluids

JF - Journal of Supercritical Fluids

ER -

Study of porous structure of polyimide films resulting by using various methods

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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