Naslov
Miscibility and properties of low molecular mass poly(L-lactide) and poly(methyl methacrylate) blends

Autori
Vidović, Elvira ; Faraguna, Fabio ; Jukić, Ante

Izvornik
Chemical and biochemical engineering quarterly (0352-9568) 33 (2019), 3; 363-376

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
blends ; morphology ; manufacturing ; mechanical properties ; thermal properties

Sažetak
Modification of biobased PLLA properties by mixing with conventional PMMA via melt mixing in Brabender mixer was performed. Despite negative results of theoretical miscibility calculations by the group contribution approach of Coleman, Graf and Paint-er, homogeneous blend morphologies were prepared as recorded with scanning electron microscopy (SEM). All PLLA/PMMA blends displayed a single glass transition tempera-ture. With increasing fraction of PMMA in blends, the increase in Tg from 58 °C to 93 °C was recorded by differential scanning calorimetry (DSC). Added PMMA improved mechanical properties, while the flexibility of PLLA/PMMA blends gradually decreased as revealed by DMA measurements.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Temeljne tehničke znanosti

Napomena
Glavni autori: Elvira Vidović i Ante Jukić

POVEZANOST RADA