Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

A modified polysiloxane has formula (I)

##STR00001##

In formula (I) m is an integer between 0 and 10000; n is an integer between 0 and 10000; m and n cannot be equal to 0 simultaneously; R.sub.1-R.sub.7 are the same or different; and at least one of R.sub.1-R.sub.7 includes a group having a reversible chemical bond system based on a hydrogen bond, a coordinate bond, or a covalent bond. The polysioxane is used as a main chain to introduce a reversible chemical bond having temperature sensitivity by using a chemical method, so as to obtain a polymer material which is highly sensitive to temperature. The temperature-sensitive properties of materials provide functional materials for specific applications, such as medical external fixation materials, orthopedic materials, and packaging materials, can be obtained by using particular processing and preparation methods.

A modified polysiloxane has formula (I)

##STR00001##

In formula (I) m is an integer between 0 and 10000; n is an integer between 0 and 10000; m and n cannot be equal to 0 simultaneously; R.sub.1-R.sub.7 are the same or different; and at least one of R.sub.1-R.sub.7 includes a group having a reversible chemical bond system based on a hydrogen bond, a coordinate bond, or a covalent bond. The polysioxane is used as a main chain to introduce a reversible chemical bond having temperature sensitivity by using a chemical method, so as to obtain a polymer material which is highly sensitive to temperature. The temperature-sensitive properties of materials provide functional materials for specific applications, such as medical external fixation materials, orthopedic materials, and packaging materials, can be obtained by using particular processing and preparation methods.

Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

Provided is a monomer suitable for application to an ophthalmic device, the monomer showing high surface hydrophilicity, a high oxygen transmissibility, and appropriate mechanical strength when copolymerized with a polymerizable monomer, such as a hydrophilic monomer. It has been recognized that a phosphorylcholine group-containing polysiloxane monomer can solve the problems.

A film forming formulation is provided that includes reaction products of phosphoric acid with a strained ring alkoxy silane. The phosphoric acid and the strained ring alkoxy silane are present in a molecular ratio of from 0.9-3.3:1. The film formulation also includes an aqueous solvent. A mold release coating composition is also provided that includes the film forming formulation, a reactive release agent, a base, and an aqueous solvent.

A process for the selective removal of a component from a liquid phase and subsequently returning the component to a liquid phase is disclosed. A novel compound of formula I [SUP]-[[L]-[G]].sub.a (I) in which L is a linking group, G is an aryl group having a leaving group LG selected from Cl, Br, I, sulfonate such as triflate, a diazo group, a nitrile, an ester and an alkoxy group and substituent Q is selected from H, NR.sub.2, OR, CO.sub.2R, F, Cl, NO.sub.2 CN and SUP is a support having a plurality of groups -[L]-[G] bound to the support is contacted with the liquid phase to bind the component to the compound I thereby forming a captured component which is separated from and may be returned to the liquid phase. The compound I is especially useful in binding homogeneous catalysts to remove it from a reaction medium and selectively returning the catalyst to the reaction medium at a later stage. The compound is particularly useful for cross-coupling reactions, for example in Suzuki reactions.

A process for the selective removal of a component from a liquid phase and subsequently returning the component to a liquid phase is disclosed. A novel compound of formula I [SUP]-[[L]-[G]].sub.a (I) in which L is a linking group, G is an aryl group having a leaving group LG selected from Cl, Br, I, sulfonate such as triflate, a diazo group, a nitrile, an ester and an alkoxy group and substituent Q is selected from H, NR.sub.2, OR, CO.sub.2R, F, Cl, NO.sub.2 CN and SUP is a support having a plurality of groups -[L]-[G] bound to the support is contacted with the liquid phase to bind the component to the compound I thereby forming a captured component which is separated from and may be returned to the liquid phase. The compound I is especially useful in binding homogeneous catalysts to remove it from a reaction medium and selectively returning the catalyst to the reaction medium at a later stage. The compound is particularly useful for cross-coupling reactions, for example in Suzuki reactions.

Synthesis of organyloxyfunctional organosilicon compounds is facilitated by a two-step process using a basic lithium, guanidine or amidine catalyst in the first step, and a phosphorus compound having a PO linkage in a second step.

Methods and formulations for modified silicone resins of Formula (I) are presented: ##STR00001##
The R.sup.1, R.sup.2, and R.sup.3 are each independently selected from a group consisting of H, alkyl, alkenyl, alkynyl, and aryl; n ranges from 1 to 10; m ranges from 1 to 200; and p ranges from 2 to 1,000. The elastomeric materials prepared from modified silicone resins display robust mechanical properties following prolonged exposure to high temperatures (e.g., 316 C. or higher).