Amphiphilic polysiloxane prepolymers and uses thereof

1. A partially ethylenically-functionalized polysiloxane, which is a mixture of reaction products obtained by reacting an ethylenically functionalizing vinylic monomer having a first reactive functional group with a linear functional polysiloxane compound having two terminal second reactive functional groups at a molar equivalent ratio, R Equivalent , of from about 40% to about 97%, wherein each first reactive functional group reacts with one second reactive functional group in the presence or absence of a coupling agent to form a covalent bond or linkage, wherein the mixture of reaction product comprises (R Equivalent ) 2 ×100% by mole of a linear polysiloxane crosslinkers having two terminal ethylenically-unsaturated groups, 2×R Equivalent ×(1−R Equivalent )×100% by mole of a polysiloxane vinylic monomer or macromer having one terminal second reactive functional group and one terminal ethylenically-unsaturated group, and (1−R Equivalent )×(1−R Equivalent )×100% by mole of unreacted linear polysiloxane compound with two terminal second reactive functional groups.

2. The partially ethylenically-functionalized polysiloxane of claim 1 , wherein R Equivalent is from about 50% to about 95%.

3. The partially ethylenically-functionalized polysiloxane of claim 1 , wherein R Equivalent is from about 60% to about 92%.

4. The partially ethylenically-functionalized polysiloxane of claim 1 , wherein R Equivalent is from about 70% to about 90%.

5. The partially ethylenically-functionalized polysiloxane of claim 1 , wherein the linear functional polysiloxane compound is defined by formula (1)

FG-G 1 -PDMS-G 2 -FG  (1)

CR(-G 1 -PDMS-G 2 -FG) a1   (2)

in which

G 1 and G 2 independent of each other are a linear or branched C 1 -C 10 alkylene divalent radical, a divalent radical of alk′-O q alk- in which q is an integer of from 1 to 5 and alk and alk′ independent of each other is a C 1 -C 6 alkylene divalent radical, or a divalent radical of -R′ 1 -X 1 -E-X 2 -R′ 2 -in which R′ 1 and R′ 2 independent of each other is a linear or branched C 1 -C 10 alkylene divalent radical or a divalent radical of alk′-O q alk- as defined above, X 1 and X 2 independent of each other are a linkage selected from the group consisting of

 in which R′ is H or C 1 -C 8 alkyl, E is an alkyl diradical, a cycloalkyl diradical, an alkylcycloalkyl diradical, an alkylaryl diradical, or an aryl diradical with up to 40 carbon atoms which may have ether, thio, or amine linkages in the main chain;

PDMS is a polysiloxane divalent radical of formula (3)

in which ν is 0 or 1, ω is an integer of from 0 to 5, U 1 and U 2 independent of each other represent a divalent radical of -R′ 1 -X 1 -E-X 2 -R′ 2 - as defined above or a divalent radical of alk′-O q alk- as defined above, D 1 , D 2 and D 3 independently of each other are a divalent radical selected from the group consisting of —(CH 2 CH 2 O) t —CH 2 CH 2 — in which t is an integer of 3 to 40, —CF 2 —(OCF 2 ) a —(OCF 2 CF 2 ) b —OCF 2 — in which a and b independent of each other is an integer of 0 to 10 provided that a+b is a number in the range of 10 to 30, and a divalent group of formula (4)

in which R 3 , R 4 , R 5 ′, R 6 , R 7 , R 8 , R 9 and R 10 , independently of one another, are C 1 -C 10 alkyl, C 1 -C 10 aminoalkyl, C 1 -C 10 hydroxyalkyl, C 1 -C 10 ether, C 1 -C 4 alkyl- or C 1 -C 4 -alkoxy-substituted phenyl, C 1 -C 10 fluoroalkyl, C 1 -C 10 fluoroether, C 6 -C 18 aryl radical, cyano(C 1 -C 12 -alkyl), -alk-(OCH 2 CH 2 ) n —OR 11 , in which alk is C 1 -C 6 alkylene divalent radical, R 11 is hydrogen or C 1 -C 6 alkyl, and n is an integer of from 1 to 10; m and p independently of each other are an integer of from 0 to 350 and (m+p) is from 1 to 700, provided that at least one of D 1 , D 2 and D 3 is represented by formula (4);

CR is a multivalent organic radical having a valence of a1;

a1 is an integer of 3, 4 or 5; and

FG is selected from the group consisting of amino group (—NHR′ as defined above), hydroxyl group, carboxylic acid group, acid halide groups (—COX, X═Cl, Br, or I), acid anhydrate group, aldehyde group, azlactone group, isocyanate group, epoxy group, aziridine group, thiol (—SH), and amide groups (—CONH 2 ).

6. The partially ethylenically-functionalized polysiloxane of claim 5 , wherein the ethylenically functionalizing vinylic monomer is selected from the group consisting of C 1 to C 6 hydroxylalkyl (meth)acrylate, C 1 to C 6 hydroxyalkyl (meth)acrylamide, C 1 to C 6 aminoalkyl (meth)acrylate, allylalcohol, allylamine, C 1 to C 6 aminoalkyl (meth)acrylamide, aziridinyl C 1 -C 12 alkyl (meth)acrylate (e.g., 2-(1-aziridinyl) ethyl (meth)acrylate, 3-(1-aziridinyl) propyl (meth)acrylate, 4-(1-aziridinyl) butyl (meth)acrylate, 6-(1-aziridinyl) hexyl (meth)acrylate, or 8-(1-axiridinyl) octyl (meth)acrylate), glycidyl (meth)acrylate, C 1 to C 6 alkyl (meth)acrylic acid, (meth)acrylic acid halide (—COX, X═Cl, Br, or I), C 1 to C 6 isocyanatoalkyl (meth)acrylate, 2-vinyl-4,4-dimethyl-1,3-oxazolin-5-one, 2-isopropenyl-4,4-dimethyl-1,3-oxazolin-5-one, 2-vinyl-4-methyl-4-ethyl-1,3-oxazolin-5-one, 2-isopropenyl-4-methyl-4-butyl-1,3-oxazolin-5-one, 2-vinyl-4,4-dibutyl-1,3-oxazolin-5-one, 2-isopropenyl-4-methyl-4-dodecyl-1,3-oxazolin-5-one, 2-isopropenyl-4,4-diphenyl-1,3-oxazolin-5-one, 2-isopropenyl-4,4-pentamethylene-1,3-oxazolin-5-one, 2-isopropenyl-4,4-tetramethylene-1,3-oxazolin-5-one, 2-vinyl-4,4-diethyl-1,3-oxazolin-5-one, 2-vinyl-4-methyl-4-nonyl-1,3-oxazolin-5-one, 2-isopropenyl-4-methyl-4-phenyl-1,3-oxazolin-5-one, 2-isopropenyl-4-methyl-4-benzyl-1,3-oxazolin-5-one, 2-vinyl-4,4-pentamethylene-1,3-oxazolin-5-one, and 2-vinyl-4,4-dimethyl-1,3-oxazolin-6-one, with 2-vinyl-4,4-dimethyl-1,3-oxazolin-5-one (VDMO), 2-isopropenyl-4,4-dimethyl-1,3-oxazolin-5-one (IPDMO), and combinations thereof.