Naslov
Influence of Precursor Hydrolysis on Morphology and Properties of Epoxy-Based Organic-Inorganic Hybrid Materials

Autori
Macan, Jelena ; Ivanković, Hrvoje ; Ivanković, Marica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
European Polymer Congress 2007 - Programme and Book of Abstracts / Poljanšek, Ida ; Žigon, Majda - Ljubljana : Slovenian Chemical Society, 2007

ISBN
978-961-90731-7-9

Skup
European Polymer Congress 2007

Mjesto i datum
Portorož, Slovenija, 02.07.2007. - 06.07.2007

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
epoxy; hybrid materials; sol-gel; morphology

Sažetak
Epoxy-silica hybrids were prepared from previously hydrolysed 3-glycidyloxypropyltrimethoxysilane (GLYMO), cured at 25 °C and 60 °C, and postcured at 120 °C. Materials cured at 60 °C show finer morphology. Hydrolysis of GLYMO improves final mechanical properties due to strengthening effect of inorganic network, regardless of its morphology. Acid-catalysed system cured at 60 °C shows improvement in all properties, probably due to hydrogen bonds between Si-OH groups and polymer matrix. Residual acid acts as centre of chain-scission, shifting degradation to somewhat lower temperatures.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA