Polyphenylenes with Phen-1,3,5-triyl Branching Moieties Based on p-Diacetylbenzene: Synthesis and Study of Porosity and Heat Resistanceстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 декабря 2020 г.
Аннотация:Microporous three-dimensional olyphenylenes with phentriyl branching moieties are synthe-sized by the trimerization polycyclocondensation of p-diacetylbenzene followed by additional heat treatmentat 450C. The structure of the polymers is studied by IR spectroscopy and the methods of thermal desorptionof argon and low-temperature sorption of nitrogen. The volume of micropores amounts to more than 70% ofthe total pore volume. Calculations of the parameters of the microporous structure using the Dubinin–Radu-shkevich and Dubinin–Astakhov methods show that the average micropore size in the test sample is 1 nm.The surface of all pores, as calculated by various methods, is in the range from 470 to 980 m2/g. According tothe TGA data, the polymer shows high heat resistance: when heated in an inert medium, its mass losses areas high as 20% in the range of 200–900C.