najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2019-10-4-475-479najo-526Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХImpact of nano-sized ceria particles upon the cyclization kinetics of poly(amic acid) filmsGofmanI. V.

199004, Bolshoi prospect 31, Saint Petersburg

gofman@imc.macro.ruVlasovaE. N.

199004, Bolshoi prospect 31, Saint Petersburg

evl021960@gmail.comNikolaevaA. L.

199004, Bolshoi prospect 31, Saint Petersburg

alexandra.l.nikolaeva@gmail.comYakimanskyA. V.

199004, Bolshoi prospect 31, Saint Petersburg

198504, Universitetskii prospect 26, Peterhof, Saint Petersburg

yakimansky@yahoo.comIvanovaO. S.

119991, Leninsky prospect 31, Moscow

runetta05@mail.ruBaranchikovА. E.

119991, Leninsky prospect 31, Moscow

a.baranchikov@yandex.ruIvanovV. K.

119991, Leninsky prospect 31, Moscow

van@igic.ras.ruInstitute of Macromolecular Compounds, Russian Academy of SciencesRussian FederationInstitute of Macromolecular Compounds, Russian Academy of Sciences; Saint Petersburg State University, Institute of ChemistryRussian FederationKurnakov Institute of General and Inorganic Chemistry, Russian Academy of SciencesRussian Federation201905082025104475–479Copyright © Gofman I.V., Vlasova E.N., Nikolaeva A.L., Yakimansky A.V., Ivanova O.S., Baranchikov А.E., Ivanov V.K., 20252025Gofman I.V., Vlasova E.N., Nikolaeva A.L., Yakimansky A.V., Ivanova O.S., Baranchikov А.E., Ivanov V.K.Gofman I.V., Vlasova E.N., Nikolaeva A.L., Yakimansky A.V., Ivanova O.S., Baranchikov А.E., Ivanov V.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/526

The experimental study was conducted of the impact of ceria nanoparticles introduced into poly(amic acid), the prepolymer of thermally stable aromatic polyimide, upon the kinetics of the thermal cyclization of the film of this prepolymer, the reaction of its transformation to the final polyimide film in the course of its thermal treatment. The nano-filler was shown to accelerate the initial stage of cyclization, occurring at temperatures ranging up to 100–120 ◦C. A possible way of practical application of this effect was discussed.

polymer-inorganic nanocompositespolyimidepoly(amic acid)ceriacyclizationmechanical propertiesThe authors acknowledge the help of L.A. Myagkova from the Institute of Macromolecular Compounds, RAS, who synthesised the prepolymer of the matrix polymer R-BAPS. The work was supported by the Russian Science Foundation (project No. 18-13-00305).ReferencesIvanov V.K., Polezhaeva O.S., et al. Synthesis and thermal stability of nanocrystalline ceria sols stabilized by citric and polyacrylic acids. Russian Journal of Inorganic Chemistry, 2010, 55(3), P. 328–332.Ivanov V.K., Polezhaeva O.S., et al. Synthesis and thermal stability of nanocrystalline ceria sols stabilized by citric and polyacrylic acids. Russian Journal of Inorganic Chemistry, 2010, 55(3), P. 328–332.Mullins D.R. The surface chemistry of cerium oxide. Surface Science Reports, 2015, 70(1), P. 42–85.Mullins D.R. The surface chemistry of cerium oxide. Surface Science Reports, 2015, 70(1), P. 42–85.Gofman I., Nikolaeva A., et al. Unexpected selective enhancement of the thermal stability of aromatic polyimide materials by cerium dioxide nanoparticles. Polymers for advanced technologies, 2019, 30(6), P. 1518–1524.Gofman I., Nikolaeva A., et al. Unexpected selective enhancement of the thermal stability of aromatic polyimide materials by cerium dioxide nanoparticles. Polymers for advanced technologies, 2019, 30(6), P. 1518–1524.Bessonov M.I., Koton M.M., Kudryavtsev V.V., Laius L.A. Polyimides – thermally stable polymers. Plenum Publishing Corp., New York, 1987, 327 p.Bessonov M.I., Koton M.M., Kudryavtsev V.V., Laius L.A. Polyimides – thermally stable polymers. Plenum Publishing Corp., New York, 1987, 327 p.Ivanov V.K., Kopitsa G.P., et al. Hydrothermal growth of ceria nanoparticles. Russian Journal of Inorganic Chemistry, 2009, 54(12), P. 1857– 1861.Ivanov V.K., Kopitsa G.P., et al. Hydrothermal growth of ceria nanoparticles. Russian Journal of Inorganic Chemistry, 2009, 54(12), P. 1857– 1861.

The authors declare that there are no conflicts of interest present.