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  Small-angle neutron scattering study of poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) and poly(sodium acrylate-block methyl methacrylate-block-sodium acrylate) triblock copolymers in aqueous solutions

Vass, S., Haimer, K., Meier, G., Klapper, M., & Borbely, S. (2002). Small-angle neutron scattering study of poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) and poly(sodium acrylate-block methyl methacrylate-block-sodium acrylate) triblock copolymers in aqueous solutions. Colloid and Polymer Science, 280(3), 245-253.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-667D-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-667E-D
Genre: Journal Article

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 Creators:
Vass, S., Author
Haimer, K., Author
Meier, G.1, Author              
Klapper, Markus1, Author              
Borbely, S., Author
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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Free keywords: small-angle scattering; ionic triblock copolymers (ABA and BAB); Derjaguin-Landau-Verwey-Overbeek theory
 Abstract: Small-angle neutron scattering experiments were made on poly(methyl methacrylate-block-sodium acrylate-block-methyl methacrylate) [p(MMA-b-NaA-b-MMA)] and p(NaA-b-MMA-b-NaA) solutions by varying the composition and the concentration of the polymer with and without 1 M NaCl added. Scattering curves could be evaluated by assuming that the polymers aggregate into polydisperse micelles. The experiments support the expectation that in the case of the p(MMA-b-NaA-bMMA) block sequence the hydrophilic blocks form closed loops connected by both ends to the micellar cores; in the case of the p(NaA-b-MMA-b-NaA) block sequence they float freely in the solvent. The micellar cores exert considerable stability against dilution and added electrolyte. The interaction of charged micelles could be. formally described in terms of volume exclusion and the Derjaguin-Landau-Verwey-Overbeek potential.

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Language(s): eng - English
 Dates: 2002-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: eDoc: 28523
ISI: 000174544700005
 Degree: -

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Title: Colloid and Polymer Science
  Alternative Title : Colloid Polym. Sci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 280 (3) Sequence Number: - Start / End Page: 245 - 253 Identifier: ISSN: 0303-402X