Self-assembling polymers—IV
AssigneePall Corporation
InventorKhaled Abdel-Hakim Helmy Aamer
Life of this patent
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Abstract
Disclosed are self-assembling block copolymers including diblock copolymers of the formula (I): wherein R1 is —(CHR—CH2—O)p—R′, p=2-6, R is H or methyl, and R′ is H, a C1-C6 alkyl or C3-C11 cycloalkyl, R2 is C6-C20 aryl or heteroaryl, one of R3 and R4 is C6-C14 aryl and the other is C1-C22 alkoxy, and n and m are independently 2 to about 2000, which find use in preparing self-assembled structures and porous membranes. Embodiments of the self-assembled structures contain the block copolymer in a cylindrical morphology. Also disclosed is a method of preparing such copolymers.
Claims18
A block copolymer of the formula (I) or (II):
- wherein:
- R1 is a poly(alkyleneoxide) group of the formula, —(CHR—CH2—O)p—R′, wherein p=2-6, R is H or methyl, and R′ is H, a C1-C6 alkyl group, or a C3-C11 cycloalkyl group;
- R2 is a C6-C20 aryl group or a heteroaryl group, optionally substituted with a substituent selected from hydroxy, nitro, amino, halo, alkoxy, alkylcarbonyl, alkoxycarbonyl, amido, and nitro;
- one of R3 and R4 is a C6-C14 aryl group, optionally substituted with a substituent selected from hydroxy, halo, amino, and nitro, and the other of R3 and R4 is a C1-C22 alkoxy group, optionally substituted with a substituent selected from carboxy, amino, mercapto, alkynyl, alkenyl, halo, azido, and heterocyclyl;
- and
- n and m are independently 2 to about 2000;
- 0<x≦n and 0<y≦m.
Dependencies are inferred from the claim text.