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Self-assembled structures in blends of disordered and lamellar block copolymers: SAXS, SANS and TEM study
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SYSNO ASEP 0321585 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Self-assembled structures in blends of disordered and lamellar block copolymers: SAXS, SANS and TEM study Title Samouspořádané struktury ve směsích neuspořádaných a lamelárních blokových kopolymerů: Studie metodami SAXS, SANS a TEM Author(s) Holoubek, Jaroslav (UMCH-V) RID
Baldrian, Josef (UMCH-V)
Lednický, František (UMCH-V)
Lal, J. (US)Source Title Polymer International. - : Wiley - ISSN 0959-8103
Roč. 58, č. 1 (2009), s. 81-87Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords diblock copolymers ; copolymer blends ; SANS ; SAXS ; self-assembly Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA100500501 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GESON/06/E005 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000262212200011 DOI 10.1002/pi.2496 Annotation Phenomena associated with the microdomain morphology in blends of deuterated block copolymers (dPS-block-dPMMA)1/(dPS-block-PMMA)2, were investigated using small-angle X-ray scattering, small-angle neutron scattering and transmission electron microscopy as a function of molecular weight, concentration of added copolymers and temperature. The blends were found to be completely miscible on the molecular level at all compositions, if their molecular weight ratio was smaller than about 5. The domain spacing D of the blends can be scaled with Mn by D Mn2/3 as predicted by a previously published postulate Evidently the postulate, suggested originally for blends of lamellar polystyrene-block-polyisoprene copolymers, can be employed to a much broader range of blends. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2009
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