Self-organization of OPV-PEG diblock copolymers in THF/water.
Conference
·
OSTI ID:11878
Oligo(phenylenevinylene)-poly(ethyleneglycol) (OPV-PEG) diblock copolymers in tetrahydrofuran (THF) solution at concentrations of 5 to 25 gl self-assemble into rod-like structures with a radius of about 80 {angstrom} 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.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11878
- Report Number(s):
- ANL/IPNS/CP-99413; TRN: AH200118%%263
- Resource Relation:
- Conference: 11th International Conference on Small-Angle Scattering (SAS '99), Upton, NY (US), 05/17/1999--05/20/1999; Other Information: PBD: 2 Jul 1999
- Country of Publication:
- United States
- Language:
- English
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