Comicellization of chemically identical diblock copolymers with different molecular parameters of the constituent blocks in a selective solvent

0188509 - UMCH-V 20010287 RIV US eng J - Článek v odborném periodiku
Koňák, Čestmír - Helmstedt, M.
Comicellization of chemically identical diblock copolymers with different molecular parameters of the constituent blocks in a selective solvent.
Macromolecules. Roč. 34, č. 17 (2001), s. 6131-6133. ISSN 0024-9297. E-ISSN 1520-5835
Grant CEP: GA AV ČR IAA4050902; GA ČR GA203/99/0573; GA AV ČR KSK4050111
Výzkumný záměr: CEZ:AV0Z4050913
Klíčová slova: light scattering * diblock copolymers * micelles
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 3.733, rok: 2001

Mixtures of two polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) copolymers were investigated by static and dynamic light scattering methods in selective solvents for PS blocks (65 wt.% p-cymene and 35 wt.% toluene). The molecular weights of the PS and PMMA blocks were, respectively, 29200, 285100 (1) and 9100, 7800 (2). Mixed micelles were formed below the critical weight ratio of copolymer 2, X_cc ÷ 0.95. Particle parameters of mixed micelles can be controlled in a broad region of molecular weights and sizes.
Trvalý link: http://hdl.handle.net/11104/0002541