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Comicellization of chemically identical diblock copolymers with different molecular parameters of the constituent blocks in a selective solvent
- 1.0188509 - UMCH-V 20010287 RIV US eng J - Journal Article
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
R&D Projects: GA AV ČR IAA4050902; GA ČR GA203/99/0573; GA AV ČR KSK4050111
Institutional research plan: CEZ:AV0Z4050913
Keywords : light scattering * diblock copolymers * micelles
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 3.733, year: 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, Xcc ÷ 0.95. Particle parameters of mixed micelles can be controlled in a broad region of molecular weights and sizes.
Permanent Link: http://hdl.handle.net/11104/0002541
Number of the records: 1