Effect of the Type of a High-Temperature Polymer Matrix on the Morphology and Electrical Conductivity of Composites with SWCNTs | Sciact - CRIS-система Института катализа

Effect of the Type of a High-Temperature Polymer Matrix on the Morphology and Electrical Conductivity of Composites with SWCNTs Научная публикация

Журнал

Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779

Вых. Данные

Год: 2023, Том: 64, Номер: 7, Страницы: 1212-1219 Страниц : 8 DOI: 10.1134/s0022476623070053

Ключевые слова

polybenzimidazole; aromatic polyamide; electrical resistance; conductivity mechanisms; microstructure

Авторы

Kuznetsov V.A. ^1,2 , Fedorov A.A. ^1,2 , Kholkhoev B.Ch. ³ , Gerasimov E.Yu. ⁴ , Burdukovskii V.F. ³

Организации

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2	Novosibirsk State Technical University, Novosibirsk, Russia
3	Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Russia
4	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Информация о финансировании (3)

1	Российский научный фонд	21-79-00224 (121082400072-9)
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUZ-2021-0006 (121031700314-5)
3	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	0273-2021-0007 (АААА-А21-121012090004-6)

Electrically conductive composite materials based on polybenzimidazole and aromatic polyamide matrices with single-walled carbon nanotubes (SWCNTs) are studied. Composites are obtained from SWCNT dispersions in solutions of polybenzimidazole and aromatic polyamide in N-methyl-2-pyrrolidone by the same procedure. Composites based on the poly-2,2′-p-oxydiphenylene-5,5′-dibenzimidazole (OPBI) matrix with a SWCNT concentration less than 1 wt.% are shown to be not electrically conductive unlike those based on the poly-m-phenylene-isophthalamide (MPA) matrix (electrically conductive even with a SWCNT concentration of 0.1 wt.%). This feature is related to different morphologies of the composites: in OPBIbased composites, nanotubes are more effectively separated by the polymer matrix due to the π–π interaction of OPBI macromolecules with SWCNTs. The microstructure is analyzed by scanning and transmission electron microscopy. It is revealed that in the case of the OPBI- matrix, nanotubes are separate SWCNTs or bundles with a smaller diameter and a more uniform volume distribution compared to the MPA-matrix. This feature of the morphology is reflected in temperature dependences of the electrical resistance measured from room temperature down to 4.2 K. In the case of the OPBI-matrix, the electrical resistance changes more with temperature, which also indicates the better separation of SWCNTs in the OPBI- matrix than in the MPA one.

Kuznetsov V.A. , Fedorov A.A. , Kholkhoev B.C. , Gerasimov E.Y. , Burdukovskii V.F.
Effect of the Type of a High-Temperature Polymer Matrix on the Morphology and Electrical Conductivity of Composites with SWCNTs
Journal of Structural Chemistry. 2023. V.64. N7. P.1212-1219. DOI: 10.1134/s0022476623070053 WOS Scopus РИНЦ CAPlus OpenAlex

Кузнецов В.А. , Федоров А.А. , Холхоев Б.Ч. , Герасимов Е.Ю. , Бурдуковский В.Ф.
Влияние типа высокотемпературной полимерной матрицы на морфологию и электропроводность композитов с ОУНТ
Журнал структурной химии. 2023. Т.64. №7. 112912 :1-8. DOI: 10.26902/JSC_id112912 РИНЦ OpenAlex

Поступила в редакцию:	28 апр. 2023 г.
Принята к публикации:	5 мая 2023 г.
Опубликована в печати:	28 июл. 2023 г.
Опубликована online:	28 июл. 2023 г.

Web of science:	WOS:001040476600005
Scopus:	2-s2.0-85166198276
РИНЦ:	54376931
Chemical Abstracts:	2023:1584814
OpenAlex:	W4385351541

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