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Research Opportunities for Materials with Ultrafine Microstructures (1989) / Chapter Skim
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Pages 54-55

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From page 54...
... . The sintered particle membranes usually have a quite nonuniform pore space with a highly polydisperse pore size distribution and contorted three-dimensionally interconnected channels.
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From page 55...
... Recent work has utilized the microphage separation of block copolymers to form regularly arrayed and uniform-sized channels. For example, 10-nm diameter one-dimensional cylindrical channels oriented normal to the membrane surface were formed by temperature and solvent gradient phase separation of a polystyrene-isoprene diblock copolymer.
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Key Terms

  • phase separation
  • particle size
  • ion exchange
  • size distribution
  • pore space

  • membrane material
  • block copolymers
  • starting materials
  • volume fraction
  • semipermeable membranes

  • pore size


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