ISSN:
1572-8943
Schlagwort(e):
DSC
;
fullerene
;
glass transition
;
star-like polystyrene
;
segmental dynamics
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract Segmental dynamics around Tg in the 4- and 6-arm fullerene (C60) core star-like polystyrenes with different preset arm lengths was studied by DSC as compared to that in the linear PS and PS/C60 blend. The ‘anomalies’ in glass transition behavior were found for the stars including both suppression and facilitation of segmental motion, and pronounced dynamic heterogeneity within a transition range. The results are interpreted in terms of breakdown of intermolecular cooperativity of segmental motions and PS-C60 interactions.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1010163307598
Permalink