Naslov
Utjecaj uvjeta hidrolize na toplinska svojstva hibridnih materijala
(Influence of Hydrolysis Conditions on Thermal Properties of Hybrid Materials)

Autori
Macan, Jelena ; Biondić, Lana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Polimerni materijali i dodatci polimerima, Zbornik radova / Čatić, Igor ; Rujnić-Sokele, Maja - Zagreb : Društvo za plastiku i gumu, 2009, 90-95

Skup
Polimerni materijali i dodatci polimerima

Mjesto i datum
Zagreb, Hrvatska, 19.11.2009. - 20.11.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
hidroliza; organsko-anorganski hibridni materijali; sol-gel postupak; toplinska svojstva
(hydrolysis; organic-inorganic hybrid materials; sol-gel process; thermal properties)

Sažetak
Organic-inorganic hybrid materials are a type of nanostructured materials synthesised by sol-gel process which allows formation of the inorganic phase in situ. Sol-gel process is based on reactions of hydrolysis and condensation of metal, usually silicon, alkoxides, leading to formation of a 3D inorganic network. With use of organically modified alkoxides possessing a reactive organic group it is possible to prepare hybrid materials containing covalent bonds between phases. This improves interphase interaction and final properties of the material. Hydrolysis and condensation reactions are either acid or base catalysed, where acid preferentially catalyses the hydrolysis, and base the condensation reaction. Hence the morphology of inorganic phase within organic- inorganic hybrid materials is largely influenced by choice of catalyst and conditions of hydrolysis. In order to optimise the properties of hybrid materials based on diglycidyl ether of bisphenol A (DGEBA) and organically modified alkoxide, 3-glycidyloxypropyltrimethoxysilane (GLYMO), influence of hydrolysis conditions and choice of catalyst on degree of organic crosslinking, glass transition temperature and thermal degradation of the materials was investigated.

Izvorni jezik
Hrvatski

Znanstvena područja
Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA