ORGANO-MODIFIED SILICONE POLYMERS

摘要

A linear silicone polymer suitable for use in producing homopolymers, copolymers, polymerized emulsions, latex compositions, and hydrogel polymer films. In one aspect, a hydrophilic silicone monomer is of the Formula 1:;WAmBnW  (1);Where, A is a divalent block comprising a silicone-containing pendant group. In one embodiment, the silicone-containing pendant group comprises polyalkylene oxide groups. The structure of the polymer can be controlled and tuned to provide a material with excellent wettability and oxygen permeability. The polymers are suitable for use in a variety of applications including in providing a film for forming contact lenses.

主权项

1. A linear siloxane polymer of the formula:
WAmBnWwhere m is a positive integer from 2-100, and n is a positive integer from 0-100; A is a divalent block having a general formula:where, R1, R2, and R3 are independently selected from hydrogen and a monovalent radical with 1 to 50 carbon atoms optionally containing one or more heteroatoms; E is a mono-valent group having a general structure of F-L-G, where F is a divalent linkage selected from an alkyl, an ester, an ether, an amine, an amide, a carbonate, and a carbamate; L is a divalent moiety chosen from a substituted, unsubstituted, linear, branched, cyclic aliphatic hydrocarbon or an aromatic hydrocarbon of 1-100 carbon atom optionally containing one or more heteroatoms; and G is a siloxane unit having the general structure M1aM2bD1cD2dT1eT2fQg where M1=R5R6R7SiZ1/2, M2=R8R9R10SiZ1/2, D1=R11R12SiZ2/2, D2=R13R14SiZ2/2, T1=R15SiZ3/2, T2=R16SiZ3/2, Q=SiZ4/2; R5, R6, R7, R9, R10, R11, R12, R14 and R15 are independently chosen from a monovalent hydrocarbon radical having 1 to about 50 carbon atoms optionally containing one or more heteroatoms; R8, R13, and R16 are independently selected from a divalent residue of a non-isomerizable hydrosilylation effective terminal olefin with the general structure:where R18, R19, and R20 are independently selected from hydrogen and a hydrocarbon radical with 1 to 10 carbon atoms optionally containing one or more heteroatoms, the integer q is 0 to 10 and R17 is a hydrocarbon radical with 1 to 5 carbon atoms or a hydrogen atom such that R17 is hydrogen when q=0 and L is a cyclic residue; a, c, e, and g are zero or a positive integer such that 0 B is a divalent radical having general formula:where R25, R26, R27, and R28 are independently selected from hydrogen, a halogen, hydroxyl, a hydrocarbon radical comprising aromatic, aliphatic, and/or aralkyl moieties optionally having one or more heteroatoms; W can be selected from X or Y where X stands for reactive group and Y stands for chain stopper group, wherein:
X is a free radical polymerizable group having the general formula:where R21, R22, and R23 can be selected from hydrogen or a monovalent hydrocarbon radical with 1 to 5 carbon atoms, which may optionally contain one or more heteroatoms; H can be O or NR24, where R24 can be hydrogen or a monovalent hydrocarbon radical with 1-5 carbons; J is a divalent moiety chosen from a substituted or unsubstituted aliphatic or aromatic hydrocarbon having of 1-10 carbon atoms and may optionally contain a heteroatom; and
Y can be independently selected from hydrogen, hydroxyl, thiol, amine, or a monovalent hydrocarbon radical having 1 to 10 carbon atoms, which may optionally contain one or more heteroatoms.