Difficult reptation of star-shaped polystyrenes in their blends with poly(methyl methacrylate)

Authors
Dondos, A Christopoulou, V Papanagopoulos, D
Citation
A. Dondos et al., Difficult reptation of star-shaped polystyrenes in their blends with poly(methyl methacrylate), MACRO RAPID, 21(15), 2000, pp. 1086-1088
Citations number
11
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
21
Issue
15
Year of publication
2000
Pages
1086 - 1088
Database
ISI
SICI code
1022-1336(20001023)21:15<1086:DROSPI>2.0.ZU;2-F
Abstract
Films of polystyrene/poly(methyl methacrylate) (PS/PMMA) blends are obtaine d from solution after evaporation of the solvent. The degree of mixing of t he two polymers is studied using scanning electron microscopy after selecti ve elimination of the PS phase. Using star-shaped instead of linear PS, an important degree of mixing is observed. This must be attributed to difficul t reptation of the star-shaped chains due to the high number of entanglemen ts between star-shaped PS and PMMA compared to the entanglements between le arn PS and PMMA.