I. V. Gofman, E. N. Vlasova, A. L. Nikolaeva, A. V. Yakimanskii, O. S. Ivanova, A. Y. Baranchikov, V. K. Ivanov, “Impact of nano-sized ceria particles upon the cyclization kinetics of poly(amic acid) films”, Nanosystems: Physics, Chemistry, Mathematics, 2019, Volume 10, Issue 4,Pages <nobr>475

CHEMISTRY AND MATERIAL SCIENCE

Impact of nano-sized ceria particles upon the cyclization kinetics of poly(amic acid) films

I. V. Gofman^a, E. N. Vlasova^a, A. L. Nikolaeva^a, A. V. Yakimanskii^ba, O. S. Ivanova^c, A. Y. Baranchikov^c, V. K. Ivanov^c

^a Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004, Bolshoi prospect 31, Saint Petersburg, Russia
^b Saint Petersburg State University, Institute of Chemistry, 198504, Universitetskii prospect 26, Peterhof, Saint Petersburg, Russia
^c Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Leninsky prospect 31, Moscow, Russia

Abstract: 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 from 100–120$^\circ$C. A possible way of practical application of this effect was discussed.

Keywords: polymer-inorganic nanocomposites, polyimide, poly(amic acid), ceria, cyclization, mechanical properties.

PACS: 81.07.-b, 62.25.-g

Received: 05.08.2019

Language: English

DOI: 10.17586/2220-8054-2019-10-4-475-479