| 主权项 |
1. A method of preparing a porous inorganic/organic homogenous copolymeric hybrid material, comprising two or more repeat units, wherein at least one repeat unit is an organosilane repeat unit D, and wherein the material has the formula
(A)w(B)x(C)y(D)z wherein the order of repeat units A, B, C, and D may be random, block, or a combination of random and block and wherein:
A is an organic repeat unit which is covalently bonded to one or more repeat units A, B, or D via an organic bond; B is an organosiloxane repeat unit which is bonded to: one or more repeat units A, B, or D via an organic bond; one or more repeat units B, C, or D via an inorganic bond; or one or more repeat units D via a carbon-heteroatom-silicon bond; C is an inorganic repeat unit which is bonded to: one or more repeat units B, C, or D via an inorganic bond; or one or more repeat units D via a carbon-heteroatom-silicon bond; D is an organosilane repeat unit and is bonded to: one or more repeat units A, B, or D via an organic bond; one or more repeat units B, C, or D via an inorganic bond; or one or more repeat units B, C, or D via a carbon-heteroatom-silicon bond;
w, x, and y are each independently positive numbers or zero, wherein w+x+y>0; andz is a positive number;wherein A is selected from the group consisting ofwherein
each R is independently H or a C1-C10 alkyl group; k is an integer from 3-6; m is an integer of from 1 to 20; n is an integer of from 0 to 10; and Q is hydrogen, N(C1-6alkyl)3, N(C1-6alkyl)2(C1-6alkylene-SO3), or C(C1-6hydroxy alkyl)3;wherein B is selected from the group consisting ofwherein C isandwherein repeat unit D is selected from the group consisting of wherein R2 and R4 are each independently C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, C3-C18 cycloalkyl, C3-C18 heterocycloalkyl, C5-C18 aryl, or C5-C18 heteroaryl; each R7 or R8 is independently C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkenylene, C2-C18 alkynyl, C3-C18 cycloalkyl, C3-C18 heterocycloalkyl, C5-C18 aryl, C5-C18 arylene, C5-C18 heteroaryl, or C5-C18 heteroarylene, wherein each of R7 and R8 may be optionally substituted; X is O, NRA, or S(O)q; RA is C1-C6 alkyl, C2-C18 alkenyl, C3-C18 cycloalkyl, C3-C18 heterocycloalkyl, C5-C18 aryl, or C5-C18 heteroaryl; and q is 0-2;comprising the steps of
(a) partially condensing an organic olefin, an alkenyl functionalized silane, an alkoxysilane, or a heterocyclic silane, or mixtures thereof, (b) adding a heterocyclic silane, and (c) further reacting the heterocyclic silane with the partially condensed polymer of step (a) to thereby prepare a porous inorganic/organic homogenous copolymeric hybrid material comprising a carbon-heteroatom-silicon functionality. |
