Electronic Resource
Copenhagen
:
International Union of Crystallography (IUCr)
Applied crystallography online
33 (2000), S. 645-649
ISSN:
1600-5767
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
Oligo(phenylenevinylene)-poly(ethyleneglycol) (OPV-PEG) diblock copolymers in tetrahydrofuran (THF) solution at concentrations of 5 to 25 g/l self-assemble into rod-like structures with a radius of about 80 Å, for an OPV-PEG diblock copolymer comprising 13 PV and 45 EG monomers. These aggregates consist of a liquid crystalline OPV core and a PEG shell. Addition of about 10% water to the solution induces the formation of a phase of packed rods, as revealed by a sudden and dramatic transition of the scattering pattern. Further addition of water leads to swelling and at about 30% ultimately to disruption of the packed-rod phase.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0021889899013138
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