Membranes articles within Polymer Journal

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• Original Article | 16 February 2011

  The correlation between solvent treatment and the microstructure of PAN-b-PEG copolymer membranes

  The effect of solvent annealing treatment on the microdomain orientation of polyacrylonitrile-block-polyethylene glycol (PAN-b-PEG) copolymers has been investigated by atomic force microscopy. Heptane, toluene and thiophene were used as annealing solvent. The size of PEG domains grew gradually by the solvent annealing of heptane, toluene and thiophene in sequence. The different size of PEG domains by solvent annealing treatment was caused by the different affinity of the solvent to PEG segments. Thiophene exhibited the strongest affinity to PEG segment among the used annealing solvent.

  • Fuwei Lu
  • , Ying Kong
  •  & Zhaoxuan Feng

• Original Article | 13 October 2010

  Nonlinear changes in pore size induced by temperature in the design of smart membranes

  The scanning electron microscope images show how the pore diameter is changing as the time of thermal treatment is increasing. In the graphic, one can appreciate the oscillatory behavior of the pore size and the fitting curve obtained when the mathematical model is applied to the experimental data.

  • Rodolfo Fabian Estrada Guerrero
  • , Efrain Rubio Rosas
  •  & Ventura Rodriguez Lugo

• Note | 01 September 2010

  Controlled permeation of model drugs through a bioconjugated membrane with antigen–antibody complexes as reversible crosslinks

  Permeation of model drugs with different molecular weights through a bioconjugated membrane having antigen–antibody complexes as reversible crosslinks was investigated in the absence and presence of a target antigen. The bioconjugated membrane regulated the drug permeation in response to the concentration of a target antigen. This paper focuses on the effect of the molecular size of the drugs on controlled permeability of the antigen-responsive membrane.

  • Takashi Miyata
  • , Noriko Asami
  •  & Tadashi Uragami