62 results about "Cationic polymerization" patented technology

The invention discloses cationic polymerization modified pure monomer resin and a preparation method and application thereof.The preparation method of the cationic polymerization modified pure monomer resin adopts a micro-flow field technology and comprises the following steps that a mixed monomer phase and a catalytic solvent phase are prepared and then pumped into a reactor according to the proportion for a reaction; a material receiving container is connected in series behind the reactor and is used for centralized post-treatment of cached materials, and a high-performance modified pure monomer resin product is obtained through a series of post-treatment. The modified pure monomer resin is prepared by using a micro-flow field technology cationic polymerization method, so that the reaction safety is improved, the reaction time is greatly shortened, the production efficiency is improved, meanwhile, the molecular weight distribution of the resin can be reduced, the softening point range is accurately controlled, the product batch is stable, the occupied area of equipment is small, the construction cost is saved, and the workshop utilization rate is improved.

This invention provides a polymer solid electrolyte monomer and its preparation method, as well as a secondary battery. The polymer solid electrolyte monomer provided by this invention has the structure shown in Formulas 1-4. The secondary battery provided by this invention introduces the polymer solid electrolyte monomer and a certain functional material solution, both of which are used on the positive electrode side. Simultaneously, an acrylate monomer is introduced on the negative electrode side. After battery assembly, heat treatment is performed to initiate gradient in-situ polymerization of the precursors on both the positive and negative electrode sides. Specifically, cationic polymerization initiates mild polymerization on the positive electrode side, free radical polymerization initiates high polymerization on the negative electrode side, and the two monomers interpenetrate at the separator to complete cross-linking copolymerization, thereby forming a gradient polymerization system with increasing polymerization degree from the positive to the negative electrode. The in-situ solid battery prepared using this method has lower internal resistance and faster Li + This improves the electrochemical performance of the battery by creating a transmission channel.

The invention belongs to the field of initiators, and particularly relates to a single-component initiator as well as a preparation method and application thereof. The single-component initiator provided by the invention can be cracked to generate free radicals and protonic acid at the same time under 365 nm / 395 nm UV-LED illumination, acrylate free radical polymerization and epoxy resin cationic polymerization are initiated respectively, the problems of quenching effect and poor storage stability of a traditional compound system are avoided, and when the single-component initiator is applied to a solder resist dry film, the problem of poor storage stability is solved. Compared with a commercially available initiator, the initiator provided by the invention has the advantages that the ultrahigh resolution of 12 microns can be realized under the exposure energy which is 20-50% lower than that of the commercially available initiator, the gelation time is shortened to 3.2 seconds, the finger touch drying time is 12.5 seconds, the curing efficiency is improved by more than or equal to 40%, and the initiator is particularly suitable for manufacturing a high-density interconnected PCB (Printed Circuit Board).

The application provides a cationic photocuring composition for ink and application thereof. The composition comprises a cationic polymerizable compound, a cationic initiator and a pigment, the cationic polymerizable compound comprises compound A-1 and compound A-2; wherein the structural formula of compound A-1 is R1 represents methyl or ethyl; compound A-2 is a polymerizable monomer without vinyl, the molecular weight of which is less than 300, and the molecular weight of oxygen in the molecule accounts for 12-30% of the molecular weight of the compound; the sum of the content of compound A-1 and compound A-2 accounts for 40wt%-90wt% of the total content of the composition; and the weight ratio of compound A-1 and compound A-2 is 8:1-1:5. The above-mentioned composition as the main component of the ink can effectively improve the problem that the cationic polymerization type ink is easy to block the nozzle, especially for high-precision nozzles, the effect is particularly significant, the pattern formed after curing is clear and uniform, and the appearance performance is excellent.

The present disclosure relates to a composition comprising: (a) a cationic polymerization initiator; and (b) an indene based or cyclopentadiene based resin; wherein the cationic polymerization initiator is selected from the group consisting of (i) an aromatic sulfonium salt-based cationic polymerization initiator; (ii) a phosphonium salt-based cationic polymerization initiator; (iii) a quaternary ammonium salt-based cationic polymerization initiator; (iv) an aluminum complex-based cationic polymerization initiator; (v) an aromatic iodonium salt-based cationic polymerization initiator; (vi) an aromatic diazonium salt-based cationic polymerization initiator; (vii) a pyridinium-based cationic polymerization initiator and (viii) a mixture thereof. Also described are varnishes and coatings formed from said composition.

Provided are: a negative photosensitive composition which is capable of forming a pattern having a good shape and which is capable of improving adhesiveness to a side wall of a hollow structure; a photosensitive resist film which is provided with a photosensitive film that is formed using the negative photosensitive composition; a method for producing a hollow structure using the negative photosensitive composition; and a method for forming a pattern. The negative photosensitive composition contains a trifunctional or higher polyfunctional epoxy compound, a cationic polymerization initiator, and a bifunctional aromatic epoxy compound having a molecular weight of 800 or less. In the negative photosensitive composition, the ratio of the content of the difunctional aromatic epoxy compound to the total content (100% by mass) of the polyfunctional epoxy compound and the difunctional aromatic epoxy compound is 0.6-10% by mass.

The disclosure provides an active cationic polymerization initiator composition for synthesizing a ternary diblock copolymer, a diisopropenylbenzene copolymer and a terpene polymer. The disclosure further provides a flame-retardant resin composition, which includes: (a) a hydrocarbon resin; and (b) a reactive flame-retardant, and may optionally include a modified polyphenylene ether. A flame-retardant resin cured product formed from the flame-retardant resin composition may have high heat resistance, low dielectric constant, low dissipation factor, flame retardancy and / or film-forming properties, and is suitable for uses in fabrication of a semiconductor packaging material, a substrate and the like for the high-speed and high-frequency field.

The present invention addresses the problem of providing a photosensitive resin composition which has high micromachining properties and can yield a cured product having a low dielectric loss tangent. The main purpose of the present invention is to obtain a photosensitive resin composition which contains a polyimide resin, a cationic polymerizable compound and a cationic polymerization initiator and which is characterized in that the polyimide resin has a structure represented by formula (1) as a tetracarboxylic acid residue in all or some tetracarboxylic acid residues. (X moieties are each independently a single bond or a divalent linking group (in which the total number of carbon atoms is 10 or fewer). Y is a phenylene group, a naphthylene group, a group represented by formula (2) or a group represented by formula (4). ＊ denotes a bond to an amide group or a carbonyl group in an imide ring) (In formula (2) and formula (4), R1 and R2 each independently denote a monovalent hydrocarbon group having 1-10 carbon atoms, in which some hydrogen atoms may be substituted by halogen atoms, Z denotes a single bond or a divalent organic group having 1-20 carbon atoms, p and q each independently denote an integer between 0 and 4, and s denotes an integer that is 0 or 1. ＊ denotes a bond to X.)

Provided is a curable epoxy composition which can be cured in a short time in the presence of oxygen and which has excellent filling properties. A curable epoxy composition containing an epoxy compound having an epoxy group in the molecule and a photo-cationic polymerization initiator, the curable epoxy composition being used for use in a rotary electric machine and / or a semiconductor. It is preferable that the curable epoxy composition substantially does not contain a curing agent other than a photo-cationic polymerization initiator. The curable epoxy composition may also include a polyol.

Poly(oxazoline)- and poly(oxazine)-based lipids, process for the preparation thereof, and use thereofDisclosed are polymers of formulae (I) or (II)or polymers containing, based on all structural units, 10 to 95 mol % of structural units of the formula (III), 5 to 90 mol % of structural units of the formula (IV) and 0 to 20 mol % of structural units of the formula (V)or containing 10 to 95 mol % of structural units of the formula (VI), 5 to 90 mol % of structural units of the formula (VII) and 0 to 20 mol % of structural units of the formula (VIII)wherein at least one of the structural units of formula (III), (IV) or (V) or of formula (VI), (VII) or (VIII) with the grouping —CHR4—, —CHR5— or CHR7— or with the grouping —CHR5—, —CHR7— or —CHR10— is covalently bonded to a radical R2, whereinIni is a radical derived from an initiator of the cationic polymerization,R1 is selected from the group consisting of hydrogen or C1-C4 alkyl,R2 is selected from the group consisting of —OR11, —OCO—R11, —OCO—R14—CO—OR11, —OCO—R14—CO—NR12R13, —NR12—R14—CO—NR13R15, —O—R16—(O—OC—R18)m andR3, R4, R5, R6, R7, R8, R9 and R10 independentlky of one another are hydrogen, methyl, ethyl, propyl or butyl,R11 is C6-C20 alkyl,R12 and R15 independently of one another are hydrogen or alkyl,R13 is C6-C20 alkyl,R14 is alkylene, cycloalkylene, arylene or aralkylene,R16 is an m+1-valent aliphatic hydrocarbon radical,m is an integer from 1 to 5,R18 is C6-C20 alkyl, with the proviso, that several residues R18 of a residue R16 may be different within the scope of the given definitions,R17 is a trivalent bicyclic residue, andw is an integer in the range from 1 to 5000.These polymers are amphiphilic and can be used as a replacement for polyethylene glykols, for example in formulations comprising active ingredients.

The application discloses a UV and moisture dual-cured high-temperature-resistant hot-melt acrylate pressure-sensitive adhesive tape and a preparation process thereof, and belongs to the technical field of high polymer materials. The pressure-sensitive adhesive tape comprises a base material and an adhesive layer. Raw materials of the adhesive layer comprise acrylate prepolymer containing a side chain containing a vinyl ether group, modified terpene resin containing a phenolic hydroxyl group, alicyclic epoxy functional silane, a cationic photoinitiator and an antioxidant. By controlling the molar ratio of the phenolic hydroxyl group and the vinyl ether, the tackifying resin is chemically grafted into the polymer network by using the cationic chain transfer reaction, and the double mechanism of the light-induced cationic polymerization and the acid-catalyzed moisture curing is combined, so that the problems of poor temperature resistance and oxygen inhibition of the traditional hot-melt adhesive are solved. The tape has excellent high-temperature shear resistance, high initial adhesion and deep curing characteristics, and the preparation process has good hot-melt processing stability.

The hard coating composition includes a solvent and a hard coating solid matter. The hard coating solid substance comprises a silsesquioxane compound, a free radical polymerization initiator and a cationic polymerization initiator, the silsesquioxane compound comprises a free radical polymerizable functional group and a cationic polymerizable functional group, the free radical polymerizable functional group comprises a (meth) acrylate group, and the cationic polymerizable functional group comprises a (meth) acrylate group. The cationically polymerizable functional group includes an oxetane group. A method of manufacturing a window includes applying a hard coating composition on a base layer to form a preliminary hard coating; drying the preliminary hard coating to remove the solvent; and curing the dried preliminary hard coating layer to form the hard coating layer. The electronic device comprises a window manufactured by the method and a power module for supplying power.

The application discloses a kind of metallocene catalyst system, polyisobutylene and preparation method thereof.The metallocene catalyst system includes A, B, C, D four components;Component A is metallocene complex;Component B is borate;Component C is alkyl aluminum;Component D is selected from alkyl ether of carbon atom number 2~8.The metallocene catalyst system used in the application has high catalytic activity and raw materials are cheap and easy to obtain, which can greatly reduce production cost.Compared with BF3 catalyst system, the catalyst system provided by the application is non-toxic, harmless, non-polluting, non-corrosive, which can effectively solve the technical problems of toxic, harmful, corrosion and pollution existing in traditional technical route, thereby improving the operating environment, and ensuring personal health.The application can synthesize narrow distribution, medium molecular weight polyisobutylene under mild conditions of 0~80 DEG C, i.e., using conventional cooling water to remove heat, which solves the low temperature reaction problem existing in traditional cationic polymerization.

The present invention provides a hard coat layer-forming composition from which it is possible to form a hard coat layer that exhibits excellent adhesiveness. A hard coat layer-forming composition according to the present invention comprises: at least one selected from the group consisting of hydrolyzable silicon compounds, hydrolysates thereof, and hydrolysis condensates thereof; a silsesquioxane compound having an oxetanyl group; a cationic polymerization initiator; and two or more hydroxybenzophenone compounds having different numbers of hydroxy groups.

The invention discloses a UV-NIR double-trigger near-zero shrinkage adhesive based on spiro orthocarbonate molecular expansion compensation and a core-shell photothermal agent and a preparation method of the UV-NIR double-trigger near-zero shrinkage adhesive. Relates to the field of adhesives. The invention relates to a photo-thermal composite material, which is prepared from the following components in parts by mass: 20 to 45 parts of spiro orthocarbonate expansion monomers, 15 to 30 parts of cationic polymerization monomers, 10 to 25 parts of free radical polymerization monomers, 0.5 to 5 parts of CuS coated SiO2 core-shell photo-thermal conversion agents, 1 to 8 parts of photo-thermal double initiation systems and 0.1 to 2 parts of auxiliaries. Precise local heating of near-infrared laser is achieved through the core-shell structure photo-thermal agent, and the technical problems that in the prior art, polymerization shrinkage is large, single-mode curing is incomplete, and damp-heat stability is poor are solved in cooperation with the ring-opening expansion effect of the spiro monomer and a hybrid curing system. The obtained adhesive has ultra-low volume shrinkage, high bonding strength and excellent hygrothermal stability, and is especially suitable for the fields with strict requirements on dimensional stability, such as precision electronic packaging and optical device assembly.

This invention belongs to the field of photosensitive materials technology, specifically relating to a multi-curing photosensitive adhesive with strong weather resistance and its preparation method. This invention overcomes the limitations of traditional photosensitive adhesives in terms of curing depth and light source compatibility. The oil phase component introduces a fluorosilicone epoxy-polyurethane acrylate composite resin and a multifunctional diluent, integrating epoxy groups, acrylate groups, and siloxane groups on the same molecular chain. Combined with a full-band composite initiator, it achieves rapid response to 365nm UV, 405nm laser, and mercury lamps. Deep cross-linking is achieved through cationic polymerization and moisture condensation, significantly improving adhesion and solvent resistance. The aqueous component uses fluorosilicone-modified polyvinyl alcohol and aminofluorosilicone-modified polyvinyl acetate as amphiphilic emulsifying stabilizers, combined with a gradient emulsification process to form a stable oil-in-water emulsion. Combined with caprolactam-blocked latent curing agents, it achieves long-term storage at room temperature. After heating and unblocking, it cross-links with hydroxyl groups, improving film density and exhibiting ultra-high storage stability and long-lasting weather resistance.

The present invention addresses the problem of providing a composition having excellent adhesion to various plastic films and low viscosity. The present invention is a composition containing an alicyclic epoxy compound (A), a monofunctional epoxy compound (B), an oxetane compound (C), and a cationic polymerization initiator (D), the alicyclic epoxy compound (A) being contained in an amount of 50 parts by mass or more per 100 parts by mass of the total amount of the alicyclic epoxy compound (A), the monofunctional epoxy compound (B), and the oxetane compound (C). The alicyclic epoxy compound (A) is preferably a compound (A1) having two or more alicyclic epoxy groups.

The invention belongs to the technical field of petroleum resin preparation, and relates to a preparation method of hydrogenated petroleum resin based on D-A reaction toughening. Specifically, conjugated diene and a dienophile are subjected to a Diels-Alder reaction to generate a prepolymer monomer with a cyclohexene structure, cationic polymerization of the prepolymer is initiated under catalysis of a Lewis acid catalyst, a molecular chain is further increased, a D-A polymer with higher molecular weight and a specific branched structure is obtained, and deep hydrogenation is performed to obtain the high-molecular-weight and high-molecular-weight D-A polymer with a specific branched structure. The fully saturated hydrogenated petroleum resin with a rigid alicyclic structure and a flexible ester group side chain is obtained. The hydrogenated petroleum resin has good thermodynamic properties, mechanical properties and aging resistance which are synergistically optimized, meets the technical requirements of high polymer material additives, and has remarkable strategic development potential and market competitiveness in the field of refined, functionalized and green chemical materials.

The present invention relates to a cyclic oligomer, a method for producing same, a compounding material and a composite material which comprise same, and a medical product surface-modified or surface-treated therewith. The cyclic oligomer can be prepared through ring-expansion cationic polymerization using a cyclic hemiacetal ester-based initiator and a vinyl ether monomer, and has surface segregating properties.

The application discloses a cationic graft copolymer flocculant for water-based waste drilling fluid and a preparation method thereof. The preparation method comprises the following steps: adding gamma-methacryloxypropyl trimethoxysilane into a mixed solution containing ethanol and water, then adding nanocellulose crystals, and placing the mixed solution in a water bath pot to react; and the obtained product is treated to obtain a nanocrossover agent. Deionized water and starch are heated and gelatinized, and then cooled to be used; N,N-diethyl acrylamide, the nanocrossover agent, a hydrophobic monomer, a cationic polymerization monomer, an emulsifier and an initiator are slowly added into the gelatinized starch respectively to react; and the obtained product is treated to obtain the required product. The cationic graft copolymer flocculant for water-based waste drilling fluid developed by the application can remove 90.9% of CODcr of waste drilling mud after treatment at a dosage of 0.2%, the residual turbidity is 15.3 NTU, and the suspended solids reach 94.3%.

The invention discloses a controllable polymerized gel electrolyte as well as a preparation method and application thereof. The controllable polymerization gel electrolyte is formed by in-situ polymerization of a controllable polymerization gel electrolyte precursor, and the controllable polymerization gel electrolyte precursor comprises the following components in parts by weight: 0.8-2.7 parts of a retarder, 5-27 parts of a cationic polymerization monomer, 15-35 parts of a lithium salt and 4-8 parts of a lithium salt additive; the retarder is a cyclic ether or cyclic siloxane compound with a substituent group containing fluorine atoms. By regulating and controlling the ratio of the retarder to the monomer, the gel process can be controlled, so that the electrolyte is kept in a liquid state at room temperature to be beneficial to storage and infiltration, and a gel structure is formed in situ at a high-temperature aging stage after the battery is assembled. The controllable polymerized gel electrolyte is suitable for a lithium ion battery, and the safety, the cycling stability and the interface compatibility of the battery can be remarkably improved.

The present invention relates to catalyst systems, methods and compositions, and more particularly, to catalyst systems, methods and compositions for the cationic polymerization of norbornene. A composition comprises the catalytic polymerization reaction product of: a 5-ethylidene-2-norbornene (ENB) monomer; a catalyst trimethylchlorosilane; a cocatalyst is a lithium tetrakis (pentafluorophenyl) borate diethyl ether compound; and optionally a polar solvent, thereby producing a 5-ethylidene-2-norbornene polymer (poly ENB).

The invention discloses a high-voltage tolerance type thermal response safe electrolyte, a preparation method and a lithium battery, and belongs to the technical field of lithium ion batteries, the electrolyte comprises a lithium salt, a non-aqueous organic solvent, a functional additive and a fluorine-containing polymeric monomer; wherein the fluorine-containing polymeric monomer introduces an alkylene spacer group between a vinyl ether group and an electron-withdrawing perfluoro group. The highest occupied molecular orbital energy level is reduced by utilizing the strong electron withdrawing effect of fluorine groups, and the antioxidant stability of the electrolyte under high voltage is remarkably improved; the spacer group is used for blocking the inhibition of the electron withdrawing effect on the double bond activity, and the ultrafast dynamic characteristic of cationic polymerization is retained. The electrolyte is stable in performance at the normal working temperature, can be cured in situ within 10 seconds under the thermal abuse condition of 130-150 DEG C, effectively blocks thermal runaway, and is particularly suitable for high-nickel ternary and lithium-rich manganese-based high-specific-energy lithium battery systems.

Processes of making copolymers of vinyl ether monomer and cyclic viny ether monomer are provided herein. The copolymers are produced by cationic polymerization with an initiator catalyst under ambient conditions. The vinyl ether dihydrofuran copolymers have a heat distortion temperature of at least 70° C. and a glass transition temperature of at least 65° C. providing excellent mechanical properties.

The purpose of the present invention is to provide: a cationic polymerization initiator which has thermal latency and is capable of controlling the initiation of polymerization of a compound having a cationically curable functional group by adjusting the temperature; a curable resin composition containing the cationic polymerization initiator; a bonded body of a cured product and a metal in which discoloration of the cured product and the metal under humid and hot conditions is suppressed; a use of a composition containing the cationic polymerization initiator and an amine compound as a thermally latent cationic polymerization initiator; a method for curing a curable resin composition containing the cationic polymerization initiator and a compound having a cationically curable functional group; a method for producing a cured product using the cationic polymerization initiator; and a cured product produced by the production method. The thermally latent cationic polymerization initiator according to the present invention is characterized by containing a specific Lewis acid-type cationic polymerization initiator and an amine compound, the Lewis acid-type cationic polymerization initiator forming a complex with a part of the amine compound, the remainder of the amine compound is free from the Lewis acid-type cationic polymerization initiator, and the molar ratio of amino groups contained in the free amine compound to 1 mole of boron atoms contained in the Lewis acid-type cationic polymerization initiator is 0.15-1.70.

Disclosed is a compound having a chemical structure (Xf− is a counter anion selected from the group consisting of Cl−, NO3−, Br−, I−, CH3SO3− and OH−) of the following general formula (I). By using this compound as a polymerization initiator, the amount of the aggregation formed in emulsion polymerization can be reduced.

The invention provides a bis-carbazolyl sulfonium salt-containing compound as well as a preparation method and application thereof, and belongs to the technical field of photochemistry. The bis-carbazolyl sulfonium salt-containing compound provided by the invention has a structure as shown in a formula (I). According to the invention, the molecular volume is increased by introducing the dicarbazole group, and meanwhile, the compound has very excellent solubility and photosensitive activity, and can be used as a high-quality substitute of a resist acid generator and a photoinitiator for cationic polymerization.

To provide a ternary diblock copolymer which has characteristics such as high heat resistance, a low relative dielectric constant, a low dielectric loss tangent, flame retardancy and / or film formability and can be applied to uses such as the production of a semiconductor package material in a high-speed and high-frequency field and a high-speed and high-frequency substrate, and to provide a flame-retardant resin composition thereof.SOLUTION: The ternary diblock copolymer is obtained by copolymerizing monomers of (a) diisopropenylbenzene, (b) terpene derived from biomass, and (c) 1, 1-dihydrocarbylalkene, and the chemical structure of the ternary diblock copolymer is poly (diisopropenylbenzene 1, 1-dihydrocarbylalkene) - polyterpene-poly (diisopropenylbenzene 1, 1-dihydrocarbylalkene).SELECTED DRAWING: None

The invention belongs to the technical field of photocuring materials, and particularly relates to a photoinitiator composition taking an osmium metal complex as an electron transfer photosensitizer and application of the photoinitiator composition to induction of free radical, cation and hybrid polymerization in a full wave band. The invention provides a full-wave band response type photoinitiator based on osmium metal complexes (such as Os-diphen and Os-phen). The full-wave band response type photoinitiator is composed of an osmium complex photosensitizer and iodonium salt (or iodonium salt + N-vinyl carbazole). And full-wave band light response from ultraviolet to near infrared (365-690 nm) is realized. An efficient photo-induced electron transfer (PET) mechanism is established, and free radical and cation polymerization can be initiated at the same time. Under the irradiation of 690 nm red light, the double bond conversion rate of the system to an acrylate monomer can reach 51%, and deep curing of 23 cm is realized; the sunlight-driven polymerization reaction is successfully realized, and the application potential in the fields of deep curing, 3D printing, solar photopolymerization and the like is shown.

The invention provides a selective swelling opening method of a crystalline block copolymer, which comprises the following steps: carrying out random copolymerization on a crystalline polymer and a random copolymerization unit through polycondensation, free radical polymerization, anionic polymerization or cationic polymerization to obtain a random copolymer with the crystallinity of 5-50%, preparing a segmented copolymer with the crystallinity of 5-50% from the random copolymer and other polymers with different properties; or melting the crystalline block copolymer and then quenching, so that the crystallinity of the crystalline block copolymer is reduced to 5-50%; preparing a compact material by taking the obtained crystalline block copolymer as a raw material; the obtained compact material is perforated through selective swelling under the action of a selective solvent. The method is simple and convenient, easy to operate and low in cost, the performance of the porous membrane is very convenient to regulate and control, the surface of the membrane has corresponding characteristics under the condition that a complex membrane surface modification process is not involved, and the method has good amplified preparation and practical application prospects.