Pall Corporation

Pall Corportaion

Selina Shi

Khaled Abdel-Hakim Helmy Aamer

Amarnauth Singh

Khaled Abdel-Hakim Aamer

Disclosed are membranes formed from self-assembling diblock copolymers of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing porous membranes. Embodiments of the membranes contain the diblock copolymer self-assembled into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spray coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.

Membrane comprising self-assembled block copolymer and process for producing the same by spray coating (Ic)

Disclosed are membranes formed from self-assembling block copolymers, for example, a diblock copolymer of the formula (I): wherein R&#x2014;R, n, and m are as described herein, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spray coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.

Membrane comprising self-assembled block copolymer and process for producing the same by spray coating (IIc)

Disclosed are self-assembled structures formed from self-assembling block copolymers, for example, a diblock copolymer of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing nanoporous membranes. In an embodiment, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures.

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (VIa)

Disclosed are membranes formed from self-assembling block copolymers, for example, diblock copolymers of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing nanoporous membranes. Embodiments of the membranes contain a block copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such membrane which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.

Membrane comprising self-assembled block copolymer and process for producing the same by spin coating (IIa)

Disclosed are self-assembled structures formed from self-assembling diblock copolymers of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing nanoporous membranes. In embodiments of the self-assembled structure, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such self-assembled structure which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures.

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IIIa)

Disclosed are self-assembled structures formed from a self-assembling diblock copolymer of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing porous membranes. In an embodiment, the diblock copolymer is present in the self-assembled structures in a cylindrical morphology. Also disclosed is a method of preparing a self-assembled structure, which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by solvent annealing of the film.

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (Va)

Disclosed are self-assembled structures prepared from block copolymers, for example, diblock copolymers of the formula (I): wherein R-R, n, and m are as described herein, which find use in preparing nanoporous membranes. In an embodiment, the block copolymer self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such self-assembled structures which involves spin coating a polymer solution containing the block copolymer to obtain a thin film, followed by solvent annealing of the film. Further disclosed is a method of preparing porous membranes from the self-assembled structures.

Self-assembled structure and membrane comprising block copolymer and process for producing the same by spin coating (IVa)

Disclosed are membranes formed from self-assembling diblock copolymers of the formula (I): wherein Ris C-Calkyl, Ris C-Caryl or heteroaryl, one of Rand Ris a C-Caryl and the other is C-Calkoxy, and n and m are independently about 10 to about 2000, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the diblock copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such a membrane which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.

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Levittown, NY, United States of America

Selina Shi