MULTI-LAYER POROUS BLOCK COPOLYMER FILMS
The present disclosure relates to methods of making multi-layered graded multiblock copolymer films; multi-layered graded multiblock copolymer films made by the disclosed methods; uses of the disclosed multi-layered graded multiblock copolymer films; and devices comprising the disclosed multi-layered graded multiblock copolymer films. An exemplary disclosed multi-layered graded multiblock copolymer film has at least three identifiable layers comprising a first porous “skin” layer formed on the surface of a substrate, a porous bulk layer formed on the first porous “skin” layer, and a second porous “skin” layer formed on the surface of the porous bulk layer. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
1 . A multi-layer block copolymer material, the multi-layer block copolymer material comprising a self-assembled block copolymer;
wherein the self-assembled block copolymer comprises:
a first skin layer;
a second skin layer; and
a bulk layer disposed between the first skin layer and the second skin layer; and
wherein each of the first skin layer, the second skin layer and the bulk layer comprise pores.
2 . The multi-layer block copolymer material of claim 1 , wherein the self-assembled block copolymer further comprises:
a first interfacial layer disposed between the first skin layer; and/or
a second interfacial layer disposed between the second skin layer and the bulk layer.
3 . The multi-layer block copolymer material of claim 1 , further comprising a substrate disposed on a side of the first skin layer opposite the bulk layer.
4 . The multi-layer block copolymer material of claim 3 , wherein the substrate has pores; and wherein the pores have an average pore diameter ranging from about 0.1 μm to about 10 μm.
5 . (canceled)
6 . (canceled)
7 . (canceled)
8 . (canceled)
9 . The multi-layer block copolymer material of claim 1 , wherein the bulk layer comprises macropores, super macropores, mesopores, or a combination thereof.
10 . (canceled)
11 . (canceled)
12 . The multi-layer block copolymer material of claim 1 , wherein the first skin layer comprises micropores, mesopores, or combination thereof.
13 . The multi-layer block copolymer material of claim 12 , wherein the first skin layer comprises pores having a pore diameter of from about 5 nm to about 100 nm.
14 . (canceled)
15 . (canceled)
16 . (canceled)
17 . (canceled)
18 . The multi-layer block copolymer material of claim 1 , wherein the first skin layer is isoporous.
19 . The multi-layer block copolymer material of claim 1 , wherein the second skin layer comprises micropores, mesopores, or combination thereof.
20 . The multi-layer block copolymer material of claim 19 , wherein the second skin layer comprises pores having a pore diameter of from about 5 nm to about 50 nm.
21 . (canceled)
22 . (canceled)
23 . (canceled)
24 . (canceled)
25 . (canceled)
26 . (canceled)
27 . (canceled)
28 . The multi-layer block copolymer material of claim 1 , wherein the second skin layer is isoporous.
29 . The multi-layer block copolymer material of claim 1 , wherein the second skin layer having average pore diameters less than an average pore diameter of the first skin layer.
30 . (canceled)
31 . (canceled)
32 . (canceled)
33 . (canceled)
34 . (canceled)
35 . (canceled)
36 . (canceled)
37 . (canceled)
38 . (canceled)
39 . The multi-layer block copolymer material of claim 1 , wherein the second skin layer having average pore diameters less than an average pore diameter of phase inverted pores of the bulk layer.
40 . (canceled)
41 . (canceled)
42 . (canceled)
43 . (canceled)
44 . (canceled)
45 . (canceled)
46 . (canceled)
47 . The multi-layer block copolymer material of claim 1 , further comprising nanoparticles disposed within the pores of the first skin layer, the second skin layer, or a combination thereof.
48 . (canceled)
49 . (canceled)
50 . (canceled)
51 . (canceled)
52 . (canceled)
53 . (canceled)
54 . A filtration device comprising a multi-layer block copolymer material according to claim 1 .
55 . (canceled)
56 . (canceled)
57 . (canceled)
58 . (canceled)
59 . (canceled)
60 . (canceled)
61 . A method of filtration, wherein the method comprises providing a sample to the filtration device of claim 54 via inlet to the filtration device; and collecting a filtrate material that has pass through the filtration device.
62 . (canceled)
63 . (canceled)
64 . (canceled)
65 . (canceled)
66 . (canceled)
67 . (canceled)
68 . (canceled)
69 . (canceled)
70 . The method of claim 61 , wherein the sample comprises a feedstream.
71 . The method of claim 70 , wherein the feedstream is a feedstream from a bioreactor.
72 . (canceled)
73 . A method to prepare the multi-layer block copolymer material gf claim 1 , the method comprising the steps of:
(a) providing a deposition solution comprising at least one multiblock copolymer and a solvent system;
(b) depositing the deposition solution on a substrate to form an initial film;
(c) removing a portion of a solvent of the solvent system from the initial film to form a partial solvent removed initial film; and
(d) contacting the partial solvent removed initial film with a phase separation solvent system, thereby forming the multi-layer block copolymer material;
wherein the substrate has pores; and wherein the pores have an average pore diameter ranging from about 0.1 μm to about 10 μm.
74 . (canceled)
75 . (canceled)
76 . (canceled)
77 . (canceled)
78 . (canceled)
79 . (canceled)
80 . (canceled)
81 . (canceled)
82 . (canceled)
83 . (canceled)
84 . (canceled)
85 . A multi-layer block copolymer material made by the method of claim 73 .