Organic xerogels based on condensation of different m-substituted phenols with formaldehyde - Preparation and TG-MS study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F14%3AA1401AZ5" target="_blank" >RIV/61988987:17310/14:A1401AZ5 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Organic xerogels based on condensation of different m-substituted phenols with formaldehyde - Preparation and TG-MS study

Popis výsledku v původním jazyce

Four samples of organic xerogels have been prepared by polycondensation of different m-substituted phenols (3-aminophenol, m-cresol, phenol and resorcinol) with formaldehyde and subsequent drying. The reactivity of the m-substituted phenols was ascertained in the order phenolm-cresolresorcinol3-aminophenol. Phenol and m-cresol did not completely react with formaldehyde during polycondensation reactions. The used type of m-substituted phenol strongly influenced the properties of the final material. The pyrolytic process has been evaluated by TG- MS as three-step process. The first step was characterised as volatile substances loss (n-butanol andwater) and mostly CO2 evolution, the second step as evolution of the rest volatiles and the beginning of the carbonisation processes,whilst during the third step merely carbonisation reactions occurred. On the basis of all considered results, 3-aminophenol has been evaluated as the most appropriate precursor for carbon xerogel preparation.

Název v anglickém jazyce

Organic xerogels based on condensation of different m-substituted phenols with formaldehyde - Preparation and TG-MS study

Popis výsledku anglicky

Four samples of organic xerogels have been prepared by polycondensation of different m-substituted phenols (3-aminophenol, m-cresol, phenol and resorcinol) with formaldehyde and subsequent drying. The reactivity of the m-substituted phenols was ascertained in the order phenolm-cresolresorcinol3-aminophenol. Phenol and m-cresol did not completely react with formaldehyde during polycondensation reactions. The used type of m-substituted phenol strongly influenced the properties of the final material. The pyrolytic process has been evaluated by TG- MS as three-step process. The first step was characterised as volatile substances loss (n-butanol andwater) and mostly CO2 evolution, the second step as evolution of the rest volatiles and the beginning of the carbonisation processes,whilst during the third step merely carbonisation reactions occurred. On the basis of all considered results, 3-aminophenol has been evaluated as the most appropriate precursor for carbon xerogel preparation.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0100" target="_blank" >ED2.1.00/03.0100: Institut environmentálních technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

J THERM ANAL CALORIM

ISSN

1388-6150

e-ISSN

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Svazek periodika

116

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

7

Strana od-do

663-669

Kód UT WoS článku

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EID výsledku v databázi Scopus

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