Self-organization of OPV-PEG diblock copolymers in THF/water.

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Description

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.

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19 p.

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Jurban, V.; Littrell, K. C.; Thiyagarajan, P.; Wang, H. B.; Wang, H. H. & Yu, L. July 2, 1999.

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Description

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.

Physical Description

19 p.

Notes

OSTI as DE00011878

Medium: P; Size: 19 pages

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  • 11th International Conference on Small-Angle Scattering (SAS '99), Upton, NY (US), 05/17/1999--05/20/1999

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  • Report No.: ANL/IPNS/CP-99413
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 11878
  • Archival Resource Key: ark:/67531/metadc625088

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  • July 2, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 7, 2017, 4:29 p.m.

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Jurban, V.; Littrell, K. C.; Thiyagarajan, P.; Wang, H. B.; Wang, H. H. & Yu, L. Self-organization of OPV-PEG diblock copolymers in THF/water., article, July 2, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc625088/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.