{"id":4664,"date":"2026-10-20T21:00:38","date_gmt":"2026-10-20T18:00:38","guid":{"rendered":"https:\/\/polymerjournal.kiev.ua\/?page_id=4664"},"modified":"2026-10-20T21:00:39","modified_gmt":"2026-10-20T18:00:39","slug":"2026-3-2","status":"publish","type":"page","link":"https:\/\/polymerjournal.kiev.ua\/en\/2026-3-2\/","title":{"rendered":"2026 (3) 2"},"content":{"rendered":"

https:\/\/doi.org\/10.15407\/polymerj.48.03.108<\/a><\/p>\n

structural, thermal, and electrodynamic properties of carbon nanotube-filled polyimide composites based on different polymer matrices<\/strong><\/p>\n

Tetyana SHANTALII*<\/sup> (<\/strong>ORCID: 0000-0001-8540-217X<\/a>)<\/p>\n

Institute of Macromolecular Chemistry, National Academy of Sciences of<\/p>\n

Ukraine, 48 Kharkivske Highway, 02155 Kyiv, Ukraine<\/p>\n

e-mail: shantaliitatiana@gmail.com<\/a><\/p>\n

Mykola <\/strong>BORYSENKO <\/strong>(<\/strong>ORCID: 0000-0001-8707-1749<\/a>)<\/p>\n

Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine<\/p>\n

17, Oleh Mudrak\u00a0str. 03164, Kyiv, Ukraine<\/p>\n

e-mail: borysenko@yahoo.com<\/a><\/p>\n

Liudmyla <\/strong>GRISHCHENKO<\/strong> (<\/strong>ORCID: 0000-0002-0342-4859<\/a>)<\/p>\n

\u00a0<\/strong>Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine<\/p>\n

17, Oleh Mudrak\u00a0str. 03164, Kyiv, Ukraine<\/p>\n

e-mail: liudmyla.grishchenko@gmail.com<\/a><\/p>\n

Volodymyr <\/strong>MALYSHEV<\/strong> (<\/strong>ORCID: 0000-0002-7286-2166<\/a>)<\/p>\n

Educational and Scientific Institute of High Technologies, Taras Shevchenko National University of Kyiv, 4-g Glushkova Ave., 03022 Kyiv, Ukraine<\/p>\n

e-mail: malyshev@knu.ua<\/a><\/p>\n

Valeriy <\/strong>KLEPKO<\/strong> (<\/strong>ORCID: 0000-0001-8089-8305<\/a>)<\/p>\n

\u00a0<\/strong>Institute of Macromolecular Chemistry, National Academy of Sciences of<\/p>\n

Ukraine, 48 Kharkivske Highway, 02155 Kyiv, Ukraine<\/p>\n

e-mail: klepko_vv@ukr.net<\/a><\/p>\n

Vladyslav <\/strong>LISNYAK<\/strong> (<\/strong>ORCID: 0000-0002-6820-1445<\/a>)<\/p>\n

Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine<\/p>\n

17, Oleh Mudrak\u00a0Str. 03164, Kyiv, Ukraine;<\/p>\n

Institute of Macromolecular Chemistry, National Academy of Sciences of<\/p>\n

Ukraine, 48 Kharkivske Highway, 02155 Kyiv, Ukraine<\/p>\n

e-mail: lisnyak@nas.gov.ua<\/a><\/p>\n

\u00a0<\/sup><\/p>\n

*<\/sup>Corresponding author.<\/p>\n

E-mail:\u00a0 shantaliitatiana@gmail.com<\/a><\/p>\n

Polimernyi Zhurnal, 2026,\u00a048<\/strong>, no. 3: 108\u2013122<\/p>\n

Section: Structure and properties<\/p>\n

Language: Ukrainian.<\/p>\n

Received 07.07.2026<\/p>\n

Accepted 11.09.2026<\/p>\n

Published 19.10.2026<\/p>\n

Abstract<\/p>\n

Polyimide composites based on two different polymer matrices and filled with carbon nanotubes (CNTs) were characterized by FTIR spectroscopy, X-ray diffraction, and thermogravimetric analysis, and their microwave characteristics were also investigated. The materials studied included composites based on a linear polyimide matrix containing 0.06 and 0.6 wt.% CNTs and a composite based on a polyimide matrix with cardo substituents containing 5 wt.% CNTs. The FTIR spectra of the investigated composites exhibited absorption bands characteristic of polyimides. X-ray diffraction analysis revealed changes in the diffraction profile with increasing CNT content in the linear PI matrix, as well as pronounced structural differences for the composite based on the PI with cardo substituents. The composite based on the polyimide with cardo substituents containing 5 wt.% CNTs exhibited higher thermo-oxidative stability during the main degradation stage, as well as higher levels of electromagnetic-wave absorption and reflection in the Ka-band compared with the composites based on the linear PI. The observed differences may result from the combined effects of the polymer-matrix structure and CNT content.<\/p>\n

Keywords:<\/strong> polyimide; carbon nanotubes (CNTs); cardo substituents; thermo-oxidative stability; microwave properties.<\/p>\n

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    https:\/\/doi.org\/10.15407\/polymerj.48.03.108 structural, thermal, and electrodynamic properties of carbon nanotube-filled polyimide composites based on different polymer matrices Tetyana SHANTALII* (ORCID: 0000-0001-8540-217X) Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, 48 Kharkivske Highway, 02155 Kyiv, Ukraine e-mail: shantaliitatiana@gmail.com Mykola BORYSENKO (ORCID: 0000-0001-8707-1749) Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine 17, Oleh […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/4664"}],"collection":[{"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/comments?post=4664"}],"version-history":[{"count":1,"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/4664\/revisions"}],"predecessor-version":[{"id":4665,"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/pages\/4664\/revisions\/4665"}],"wp:attachment":[{"href":"https:\/\/polymerjournal.kiev.ua\/en\/wp-json\/wp\/v2\/media?parent=4664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}