专利号:WO-2023152730-A1 优先权日:2022-02-14 标题 :Amine-borane adducts in the synthesis of polyester and its copolymers using cyclic esters and compositions thereof 发明人:FENG XIAOSHUANG; LIU JINGJING; GNANOU YVES 权利人:UNIV KING ABDULLAH SCI & TECH 摘要:Embodiments of the present disclosure provide for the process of synthesis of polyester and its copolymers through (co)polymerization of cyclic esters and with other oxygenated monomers using amine-borane adduct. Embodiments of the present disclosure further describe the controlled anionic ring-opening polymerization of the cyclic compounds. Embodiments of the present disclosure also describe the polymerization of cyclic compounds using the synergistic effect of amines and thioureas. Embodiments of the present disclosure also describe compositions of polymers formed by the said process.
专利号:US-5073643-A 优先权日:1990-08-30 标 题 :High yield synthesis of hydroxyl-containing cationic photoinitiators 发明人:CRIVELLO JAMES V 权利人:POLYSET CORP 摘要:Synthesis use of a new class of diaryliodonium salt photo and thermal polymerization initiators in which the aryl groups are substituted with alkoxy group bearing hydroxy groups. Good to excellent yields are obtained of diaryliodonium salts in which the aryl groups are substituted with long chain alkoxy groups, which alkoxy groups also possess at least one hydroxyl moiety attached at the 2-position of an alkoxy group. The resultant salts have enhanced solubility when compared with their lower molecular weight counterparts. The hydroxyl groups serve as chain transfer agents; and, in cross linking UV-induced cationic polymerizations, the hydroxyl groups effect marked accelertion on polymerization rates. The salts also have excellent compatability with nonpolar monomers such as epoxidized oil and poly(1,2-butadience oxide) and provide further benefits when they are used along with copper cocatalysts in thermally curable polymer systems. In the latter form of cases, the secondary hydroxyl group serves as a reducing agent for the copper (II) complex.
专利号:US-2010280189-A1 优先权日:2005-11-30 标 题 :Synthesis of cycloaliphatic substituted silane monomers and polysiloxanes for photo-curing 发明人:DWORAK DAVID P; SOUCEK MARK D 权利人:UNIV AKRON 摘要:The present invention generally relates to compositions including linear cycloaliphatic siloxane polymers, and the cyclic cycloaliphatic siloxane oligomers from which they are made. The present invention also generally relates to methods for making cycloaliphatic siloxane polymers, and the cyclic cycloaliphatic siloxane oligomers from which they are made. Some embodiments relate to cationic polymerization of methyl, cyclopentyl, and/or cyclohexyl substituted polysiloxanes. In some embodiments the cationic polymerization is a cationic ring-opening polymerization.
专利号:US-3979460-A 优先权日:1974-07-01 标 题 :Process for the preparation of an organomercaptophenol from sulfur, a 2,6-disubstituted phenol, and an activated olefin or an epoxy compound 发明人:HAY ALLAN S 权利人:GEN ELECTRIC 摘要:A process for the preparation of an organomercaptophenol is described which comprises the reaction of sulfur with a 2,6-disubstituted phenol carried out in the presence of (1) a base, (2) an activated olefin or an epoxy compound, (3) and a solvent with a high dielectric constant. The organomercaptophenols produced by this process are useful as monomers in the synthesis of esters, carbonates, ethers, epoxy compounds, among many other chemicals synthesized from monohydric phenols. In addition, the oganomercaptophenols are also useful as antioxidants.
专利号:US-4064158-A 优先权日:1974-07-01 标题:Process for the preparation of an organomercaptophenol from sulfur, a 2,6-disubstituted phenol, and an activated olefin or an epoxy compound 发明人:HAY ALLAN S 权利人:GEN ELECTRIC 摘要:A process for the preparation of an organomercaptophenol is described which comprises the reaction of sulfur with a 2,6-disubstituted phenol carried out in the presence of (1) a base, (2) an activated olefin or an epoxy compound, (3) and a solvent with a high dielectric constant. The organomercaptophenols produced by this process are useful as monomers in the synthesis of esters, carbonates, ethers, epoxy compounds, among many other chemicals synthesized from monohydric phenols. In addition, the organomercaptophenols are also useful as antioxidants.
专利号:US-6124418-A 优先权日:1992-06-11 标题 :Selective catalysts for the synthesis of epoxysilicone monomers and polymers 发明人:CRIVELLO JAMES VINCENT; FAN MINGXIN 权利人:GEN ELECTRIC 摘要:The invention provides a method for making a curable epoxysilicone composition through the hydrosilation reaction between an ethylenically unsaturated epoxide and an SiH-containing silicone to produce an epoxysilicone product, and catalyzed by a quaternary ammonium, phosphonium or arsonium hexahaloplatinate which does not promote the oxirane ring-opening reaction of either the ethylenically unsaturated epoxide starting material or the epoxysilicone product. The invention also provides for a curable epoxysilicone composition made by the above method.
参考标题:Designing The Synthesis Of Catalytically Active Ti-β By Using Various New Templates In The Presence Of Fluoride Anion 作者:Manickam Sasidharan,Asim Bhaumik 摘要:Crystallization Of Large-Pore Ti-î² By Using A Variety Of Diquaternary Ammonium Derivatives Of Dibromoalkane And Amines Such As Triethylamine, 1,4-Diazabicyclo[2,2,2]Octane (Dabco), And Quinuclidine As Structure-Directing Agents (Sda) Is Described. The Size Of Hydrophobic Bridging Alkyl-Chain Length Of The Template [r3N+â(Ch2)Xân+r3](Ohâ)2 Directs The Final Crystalline Product: Ti-î², Ti-Zsm-12, Ti-Nonasil Or Ti-Zsm-5, As X Gradually Changes From 6 To 1, In The Fluoride Medium Under Hydrothermal Conditions. A Dense Phase Such As Ti-Nonasil (Clathrasil Type) Is Crystallized As The Size Of Hydrophobic Bridging Alkyl-Chain Length Decreases. The Use Of Fâ Anions As A Mineralizer And Ti4+ As A Heteroatom In The Synthesis Gel Also Influences The Selectivity Of Final Crystalline Product. The Phase Purity And Incorporation Of Ti4+ Into The Lattice Of î² (Bea) And Zsm-12 Frameworks Are Confirmed Using Xrd, Uv-Visible, Ft-Ir, 29Si Nmr Spectroscopes, Elemental Analysis (Icp), Surface Area Measurements And Catalytic Test Reactions. The Morphology Of Ti-î² Samples Is Dependent On The Nature Of The Structure-Directing Agent As Revealed By The Scanning Electron Microscopic (Sem) Observations. The Catalytic Activity In The Epoxidation Of 4-Vinyl-1-Cyclohexene Is Increased With The Amount Of Tetrahedral Ti4+ Atoms In The Framework. The New Templates Can Be Effectively Used For Preparation Of Catalytically Active Ti-î² With The Minimum Number Of Framework Defect Sites.
合成参考文献
摘要:Baudrenghien, L.; Markó, I. E., Science of Synthesis: N-Heterocyclic Carbenes in Catalytic Organic Synthesis, (2016) 1, 309.