Photochemical crosslinkers for polymer coatings and substrate tie-layer
AssigneeInnovative Surface Technologies, Inc.
InventorsPatrick Guire, Kristin Taton, Jie Wen
Life of this patent
Estimating the term…
Abstract
The invention describes novel crosslinking compounds that include photoactivatable moieties. Several families of compounds are disclosed that can include one or more hydrophilic moieties that help to solubilize the compounds in aqueous environments.
Claims23
A compound of formula:
- L-(D-T-C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond with T;
- D is CR6R7;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2)s, (—CH2—)rNR(—CH2—)s;
- R10 is a hydrogen atom or an alkyl, aryl or arylalkyl group;
- R6 and R7 are each independently a hydrogen atom, an alkyl, aryl, arylalkyl, heteroaryl or heteroarylalkyl group;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500.
A compound of formula:
- L-(T-C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond with T;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is, —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R1° is a hydrogen atom or an alkyl, aryl or arylalkyl group;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R is a hydrogen atom, an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500.
A compound of formula:
- L-(GTZR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- G is —C(═O) O—, —NHC(═O) O—, —NHC(═O)S—, —CONH—, —NHCONH—, —NHC(═S)NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- Z is C═O, COO, or CONH when T is (—CH2—)x;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R is a hydrogen atom or an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500.
A compound of formula:
- L-(TGQR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond with T;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- G is —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- Q is (—CH2—)p, (—CH2CH2—O—)p, (—CH2CH2CH2—O—)p or (—CH2CH2CH2CH2—O—)p;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- R is a hydrogen atom or an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- p is an integer from 1 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500.
A compound of formula:
- L-(—CH2—)xxC(R1)(GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl , or aryloxyaryl group;
- each G is —C(═O) O—, —O—, —NHC(═O )O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- each R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- each R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- each R is a hydrogen atom or an alkyl or aryl group;
- each q is an integer from 1 to about 7;
- each r is an integer from 0 to about 3;
- each s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- each t is an integer from 1 to about 10;
- and
- xx is an integer from 1 to about 10.
A compound of formula:
- L-(—C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- and
- t is an integer from 1 to about 10.
A compound of formula:
- L-(GR3C(═O)R4)m;
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- G is —C(═O) O—, —NHC(═O)O—, —NHC(═O)S—, —CONH—, —NHCONH—, —NHC(═S)NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- and
- t is an integer from 1 to about 10.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(D-T-C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- D is CR6R7;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is —C(═O)O—, —O—, —NHC(═O) O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—C-H2—)s;
- R10 is a hydrogen atom or an alkyl, aryl or arylalkyl group;
- R6 and R7 are each independently a hydrogen atom, an alkyl, aryl, arylalkyl, heteroaryl or heteroarylalkyl group;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(T-C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond with T;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR 10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R10 is a hydrogen atom or an alkyl, aryl or arylalkyl group;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R is a hydrogen atom, an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(GTZR3C(═O)R4)m wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- G is —C(═O) O—, —NHC(═O) O—, —NHC(═O)S—, —CONH—, —NHCONH—, —NHC(═S)NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- Z is C═O, COO, or CONH when T is (—CH2—)x;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R is a hydrogen atom or an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(TGQR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond with T;
- T is (—CH2—)x, (—CH2CH2—O—)x, (—CH2CH2CH2—O—)x, (—CH2CH2CH2CH2—O—)x or forms a bond;
- G is, —C(═O) O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- Q is (—CH2—)p, (—CH2CH2—O—)p, (—CH2CH2CH2—O—)p or (—CH2CH2CH2CH2—O—)p;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH213 )rNR(—CH2—)s;
- R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- R is a hydrogen atom or an alkyl or aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- p is an integer from 1 to about 10;
- t is an integer from 1 to about 10;
- and
- x is an integer from 1 to about 500 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(—CH2—)xxC(R1)(GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl, or aryloxyaryl group;
- each G is —C(═O) O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10—, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- each R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- each R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- each R is a hydrogen atom or an alkyl or aryl group;
- each q is an integer from 1 to about 7;
- each r is an integer from 0 to about 3;
- each s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- each t is an integer from 1 to about 10;
- and
- xx is an integer from 1 to about 10 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(—C(R1)(XP)CHR2GR3C(═O)R4)m
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- R1 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- X is O, S, or NR8R9;
- P is a hydrogen atom or a protecting group, with the proviso that P is absent when X is NR8R9;
- R2 is a hydrogen atom, an alkyl, alkyloxyalkyl, aryl, aryloxyalkyl or aryloxyaryl group;
- G is —C(═O)O—, —O—, —NHC(═O)O—, —NHC(═O)S—, —SO2—, —CONH—, —NHCONH—, —NHC(═S)NH—, —NR10 —, —SO2NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R8 and R9 are each independently a hydrogen atom, an alkyl, aryl, or arylalkyl group;
- R10 is a hydrogen atom or an alkyl, aryl, or an arylalkyl group;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- and
- t is an integer from 1 to about 10 to the surface of the substrate, such that the substrate surface is modified.
A method to modify a substrate comprising the step of applying a compound of formula:
- L-(GR3C(═O)R4)m;
- wherein
- L is a linking group comprising
- a formula according to structure (I):
- A, B and J form a ring, wherein A and J are C═O;
- B is NR11;
- R11 is a hydrogen atom, an alkyl group, an aryl group or denotes a bond;
- G is —C(═O) O—, —NHC(═O)O—, —NHC(═O)S—, —CONH—, —NHCONH—, —NHC(═S)NH—, —C(═N)—, —C(═O)— or —(CH2)t—O—;
- R3 and R4 are each independently an alkyl, aryl, arylalkyl, heteroaryl, or an heteroarylalkyl group, or optionally, R3 and R4 can be tethered together via (—CH2—)q, (—CH2—)rC═O(—CH2—)s, (—CH2—)rS(—CH2—)s, (—CH2—)rS═O(—CH2—)s or (—CH2—)rS(O)2(—CH2—)s, (—CH2—)rNR(—CH2—)s;
- R is a hydrogen atom, an alkyl or an aryl group;
- q is an integer from 1 to about 7;
- r is an integer from 0 to about 3;
- s is an integer from 0 to about 3;
- m is an integer from 2 to about 10;
- and
- t is an integer from 1 to about 10 to the surface of the substrate, such that the substrate surface is modified.
Dependencies are inferred from the claim text.