Swelling Kinetics of Layered Structures: Triblock Copolymer Mesogels

C. M. Chen, F. C. Mackintosh, D. R.M. Williams

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We consider the swelling kinetics of layered structures. We focus on the case of triblock copolymer mesogels, although our results are applicable to other layered structures including clays. We assume the mesogels are swollen by a solvent that is good for the bridging block but poor for the nonbridging block. At long times the penetration front movss as in ordinary diffusion, i.e., as t1/2. At short times, however, the bending elasticity of the nonbridging layers becomes important. This bending elasticity leads to a tV6 relaxation of the penetration front at early times. The crossover length between these two regimes is approximately the width of a single layer. However, for a large number of lamellae there is a cooperative effect which leads to a large enhancement of this crossover length.

Original languageEnglish
Pages (from-to)2471-2475
Number of pages5
Issue number7
Publication statusPublished - 1995 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry


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