Abstract: Fluorinated alkyltin compounds having formula (I) and formula (IV) are described, in which Rf is a fluorinated or partially fluorinated linear or branched alkyl group having about 1 to about 5 carbon atoms, X is a dialkylamino group having about 1 to about 4 carbon atoms, and n is 1 or 2, R? is a primary or secondary monofluoroalkyl group having about 2 to about 10 carbon atoms and R is a primary, secondary, or tertiary alkyl group having about 1 to about 4 carbon atoms. (RfCH2)nSnX(4-n)??(I) R?Sn(NR2)3??(IV) A method for forming a fluorinated oxostannate film from the fluorinated alkyl tin compounds is also provided.

Abstract: Novel N-alkyl substituted perhydridocyclic silazanes, oligomeric N-alkyl perhydridosilazane compounds, and N-alkylaminodihydridohalosilanes, and a method for their synthesis are provided. The novel compounds may be used to form high silicon nitride content films by thermal or plasma induced decomposition.

Abstract: Silacrown ethers having at least eleven ring atoms and containing at least one substituted or unsubstituted unsaturated hydrocarbon, peptide, or peptoid substituent on the ring and/or on the silicon atom are provided. Azasilacrown ethers having at least eleven ring atoms and containing at least one substituted or unsubstituted, saturated or unsaturated hydrocarbon, peptide, or peptoid substituent on the ring and/or on the silicon atom are also described.

Abstract: Novel N-alkyl substituted perhydridocyclic silazanes, oligomeric N-alkyl perhydridosilazane compounds, and N-alkylaminodihydridohalosilanes, and a method for their synthesis are provided. The novel compounds may be used to form high silicon nitride content films by thermal or plasma induced decomposition.

Abstract: Two classes of cyclic tin compounds, trioxa-aza-1-stannabicyclo-[3.3.3]-undecanes, also referred to as stannatranes, and tetraaza-1-stannabicyclo-[3.3.3] undecanes, also referred to as azastannatranes, are described, as are methods for their preparation. These cyclic tin compounds are resistant to rearrangement and the generation of dialkyltin impurities is not observed during the synthesis, purification or deposition of these compounds to form oxostannate films.

Abstract: A method of protecting hair from damage by applying a long-chain unhydrolyzed alkyltrialkoxysilane to hair shafts and then hydrolyzing and polymerizing the alkyltrialkoxysilane to form a non-penetrating outer layer on the hair shaft by utilizing pH adjusted water followed by the application of heat. Alternatively, the alkyltrialkoxysilane may be applied to the hair in combination with an alkyl or alkenyl succinic anhydride prior to the application of heat.

Abstract: A method of synthesizing a high purity acryloxyalkyldimethylchlorosilane involves (a) reacting an acrylate salt with a haloalkyldimethylalkoxysilane to form an acryloxy-substituted alkyldimethylalkoxysilane; and (b) displacing the alkoxy group in the acryloxy-substituted alkyldimethylalkoxysilane using a chloride-containing compound to form the acryloxyalkyldimethylchlorosilane. The acryloxyalkyldimethylchlorosilane, which may be used as an end-capper for AROP, has a purity of greater than about 99% and contains no detectable isomeric or hydrogenated impurities.

Abstract: Silicon-based tetrahydrocannabinol derivatives and methods for their synthesis are provided, in which the derivatives contain a tetrahydrocannabinol molecule and at least one silicon-based group containing Si—O—Si bonds. The derivatives are useful in topical and dermatological compositions, have potential beneficial topical properties, and enhance solubility and compatibility in topical and dermatological formulations containing the silicon-based materials.

Abstract: A method for producing a contact lens having a water contact angle below about 90° involves preparing a molding resin comprising a polyether modified polyolefin; forming the molding resin into a mold; preparing a contact lens composition; filling the contact lens composition into the mold; and polymerizing the contact lens composition to form a contact lens. A method of inducing water contact angle below 90° and improved surface wettability of a contact lens involves cast polymerizing a mixture of monomers in a mold formed from a molding resin containing a polyether modified polyolefin to form a contact lens having a water contact angle of less than about 90°. Single-use molds for contact lens manufacture are also provided.

Abstract: A method for deposition of a thin film onto a substrate is provided. The method includes providing a source precursor containing on or more of elements constituting the thin film, generating a transient species from the source precursor, and depositing a thin film onto the substrate from the transient species. The transient species being a reactive intermediate that has a limited lifetime in a condensed phase at or above room temperature.

Abstract: A method for forming a fluorinated oxostannate film involves vaporizing a volatile fluorinated alkyltin compound having at least two hydrolytically sensitive functional groups or at least two reactive functional groups which are sensitive to oxidation at a temperature greater than 200° C.; providing a substrate; physisorbing or chemisorbing the fluorinated alkyltin compound onto the substrate; and exposing the physisorbed or chemisorbed fluorinated alkyltin compound to a sequence of hydrolysis, irradiation, and/or oxidation steps to form the fluorinated oxostannate thin film on the substrate.

Abstract: A new class of compounds known as chalcogenosilacyclopentanes is described. These compounds are five-membered ring structures containing a silicon-selenium or silicon-tellurium bond, as shown in Formulas (I) and (II). In these compounds, the substituents on the silicon and on the ring carbons may be hydrogen, alkyl, alkoxy, aromatic, or ether groups. The chalcogenosilacyclopentane compounds undergo ring-opening reactions with hydroxyl and other protic functionalities and may be used to prepare substrates that are amenable to thin film deposition techniques such as ALD and CVD.

Abstract: A new class of compounds known as chalcogenosilacyclopentanes is described. These compounds are five-membered ring structures containing a silicon-selenium or silicon-tellurium bond, as shown in Formulas (I) and (II). In these compounds, the substituents on the silicon and on the ring carbons may be hydrogen, alkyl, alkoxy, aromatic, or ether groups. The chalcogenosilacyclopentane compounds undergo ring-opening reactions with hydroxyl and other protic functionalities and may be used to prepare substrates that are amenable to thin film deposition techniques such as ALD and CVD.

Abstract: Large ring silacrown ethers having at least fourteen ring atoms with at least one lipophilic or hydrophobic substituent on the ring and/or on the silicon atom are provided. Pharmaceutical compositions containing these silacrown ethers and the use of these materials as therapeutic agents are also described.

Abstract: A method for forming a fluorinated oxostannate film involves vaporizing a volatile fluorinated alkyltin compound having at least two hydrolytically sensitive functional groups or at least two reactive functional groups which are sensitive to oxidation at a temperature greater than 200° C.; providing a substrate; physisorbing or chemisorbing the fluorinated alkyltin compound onto the substrate; and exposing the physisorbed or chemisorbed fluorinated alkyltin compound to a sequence of hydrolysis, irradiation, and/or oxidation steps to form the fluorinated oxostannate thin film on the substrate. Fluorinated alkyltin compounds having formula (I) are also described, in which Rf is a fluorinated or partially fluorinated linear or branched alkyl group having about 1 to about 5 carbon atoms, X is a dialkylamino group having about 1 to about 4 carbon atoms, and n is 1 or 2: (RfCH2)nSnX(4-n)??(I).

Abstract: Hydridosilapyrroles and hydridosilaazapyrrole are a new class of heterocyclic compounds having a silicon bound to carbon and nitrogen atoms within the ring system and one or two hydrogen atoms on the silicon atom. The compounds have formula (I): in which R is a substituted or unsubstituted organic group and R? is an alkyl group. These compounds react with a variety of organic and inorganic hydroxyl groups by a ring-opening reaction and may be used to produce silicon nitride or silicon carbonitride films.

Abstract: Silicon-based tetrahydrocannabinol derivatives and methods for their synthesis are provided, in which the derivatives contain a tetrahydrocannabinol molecule and at least one silicon-based group containing Si—O—Si bonds. The derivatives are useful in topical and dermatological compositions, have potential beneficial topical properties, and enhance solubility and compatibility in topical and dermatological formulations containing the silicon-based materials.

Abstract: Compositions and methods for reshaping keratin-rich substrates while forming adherent flexible films contain emulsified or soluble mixtures of silanols and hemiaminals or the reaction products of silanols and hemiaminals including silylated hemiaminals. A method for treating split-ends in hair is also described.

Abstract: Compositions and methods for reshaping keratin-rich substrates while forming adherent flexible films contain emulsified or soluble mixtures of silanols and hemiaminals or the reaction products of silanols and hemiaminals including silylated hemiaminals. A method for treating split-ends in hair is also described.

Abstract: A method for deposition of a thin film onto a substrate is provided. The method includes providing a source precursor containing on or more of elements constituting the thin film, generating a transient species from the source precursor, and depositing a thin film onto the substrate from the transient species. The transient species being a reactive intermediate that has a limited lifetime in a condensed phase at or above room temperature.