61 results about "Phenylphosphonic acid" patented technology

The invention belongs to the technical field of flame-retardant macromolecules, and particularly relates to intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out a reaction on diethanol amine and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; and (2) carrying out condensation polymerization on the intermediate A and phenylphosphonic acid to prepare the phosphate-terminated polyester flame retardant (PEF). And (3) carrying out epoxidation on 4, 4 '-biphenol to prepare the liquid crystal epoxy precursor LEP. And (4) mixing PEF, LEP and 3, 3 '-dithiodipropionic acid, and heating and curing to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardance and efficient recoverability, and is a high polymer material with great potential.

The invention relates to the technical field of electric power facilities, in particular to a high-strength flame-retardant fireproof cable and a preparation method thereof. The phosphonitrile flame retardant is prepared by adding phosphonitrilic chloride trimer, phenylphosphonic acid, triethylamine and melamine. Then, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, the modified carbon nanotubes and the flame-retardant modified halloysite nanotubes are used as main raw materials, and the flame-retardant filler is prepared. The preparation method comprises the following steps: mixing polyolefin, a phosphazene flame retardant, a flame-retardant filler, talcum powder, gum and stearic acid, fully stirring and melting to obtain a sizing material, and carrying out crosslinking, granulation and molding on the sizing material to obtain the cable protection sleeve. And wrapping the outermost layer of the cable with the cable protection sleeve to obtain a finished cable. The finished cable prepared by the invention has good flame retardance and mechanical strength, so that the cable has a wide application prospect in the technical field of electric power facilities.

The invention discloses a perovskite solar cell based on a cross-linked interface passivation layer, and relates to the technical field of photovoltaic cell materials. The perovskite solar cell sequentially comprises a transparent conductive substrate, an electron transport layer, a perovskite light absorption layer, a crosslinking interface passivation layer, a hole transport layer and a metal electrode from bottom to top, and the cross-linked interface passivation layer is made of a 4-[10-(4-{(1, 2, 2-trifluorovinyl) oxy} phenyl)-10H-phenoxazine-2-yl] phenylphosphonic acid material. The cross-linked interface passivation layer can significantly improve the photovoltaic performance and stability, the intrinsic stability of the device is greatly enhanced by the cross-linked network, and in a double-85 aging test of 85 DEG C / 85% RH, the time required for attenuating the efficiency of the device to 80% of an initial value can exceed 1000 hours.

The invention belongs to the technical field of inorganic chemical material preparation, and discloses a high-selectivity crystallization and impurity migration inhibition method of high-purity magnesium hydroxide. The method comprises the following steps: a phenylphosphonic acid surface modifier is introduced in the initial stage of crystallization, molecules of the phenylphosphonic acid surface modifier selectively occupy high-activity Mg < 2 + > sites of a magnesium hydroxide crystal face through bidentate coordination, and a molecular-level interface barrier with steric hindrance and electrostatic repulsion effects is formed, so that a Ca < 2 + > migration path is specifically blocked, and Mg < 2 + > crystallization is not influenced. The preparation method of the high-purity magnesium hydroxide is high in selectivity, high in efficiency, low in cost and environmentally friendly, the interface adsorption behavior of calcium ions is accurately intervened in the initial stage of crystallization through a molecular level surface engineering means, the technical bottleneck that impurity migration and lattice doping are difficult to control in a traditional process is fundamentally solved, and the preparation method is suitable for industrial production. And a brand new technical path is provided for green manufacturing of high-performance inorganic functional materials.

The invention relates to the technical field of solar cells, in particular to a perovskite solar cell and a preparation method thereof, and a photovoltaic module wherein the perovskite solar cell comprises a substrate structure, and a hole transport layer, a perovskite absorption layer and an electron transport layer which are sequentially stacked on one side of the substrate structure from near to far; the hole transport layer comprises a first material and a second material, and the first material is a phosphonic acid compound containing carbazolyl; and the second material comprises at least one of (4-(pyrene-1-yl) phenyl) phosphonic acid, (4-(6-fluoro-9H-thieno [2, 3,: 4, 5] thieno [3, 2-b] indole-9-yl) butyl) phosphonic acid, (4-(5H-benzo [4, 5] thieno [3, 2-c] indole-9-yl) butyl) phosphonic acid and ((9H-carbazole-3, 6-diyl) bis (4, 1-phenylene)) bisphosphonic acid. According to the technical scheme, the contact uniformity between the hole transport layer and the substrate structure and between the hole transport layer and the perovskite absorption layer in the perovskite solar cell is improved, and the overall electrochemical performance of the perovskite solar cell is effectively improved.

The application discloses ammonium hexamethylene diamine tetramethylene diphenyl phosphonate, a preparation method and application thereof, and relates to a new IFR, i.e., HDBG, which is synthesized by electrostatic self-assembly with HDTMPA and BG as raw materials, and then is applied in a high polymer material to prepare a high polymer composite material of ammonium hexamethylene diamine tetramethylene diphenyl phosphonate (HDBG) by melt blending. The HDBG has good compatibility with TPU, improves the flame-retardant property of TPU, and takes into account the mechanical property, which is beneficial to further expanding the application range of TPU.

The invention relates to the technical field of aluminum material processing oil, and particularly discloses an environment-friendly residue-free aluminum material processing oil composition and a preparation method thereof. The environment-friendly residue-free aluminum product processing oil composition is prepared from the following raw materials in parts by weight: 60 to 100 parts of polyglycol ether, 2 to 17 parts of synthetic ester, 0.5 to 2.5 parts of antioxidant, 0.1 to 0.5 part of metal corrosion inhibitor and 0.1 to 3 parts of tackifier. The synthetic ester comprises star-shaped complex ester, and the star-shaped complex ester comprises the following raw materials: pentaerythritol, oleic acid, phenylphosphonic acid and boric acid. The environment-friendly residue-free aluminum product processing oil composition disclosed by the invention can be used for forming and processing aluminum products, can effectively inhibit oxidation caused by factors such as high-temperature friction heat and metal catalysis in a cyclic heating process under heavy-load and high-temperature working conditions, can realize almost no residue after aluminum product post-treatment at 540 DEG C, ensures that the surfaces of the aluminum products are bright and free of discoloration, and has the advantages of simple process, low cost and the like. And the subsequent cleaning procedure is omitted.

The invention discloses a pomegranate-shaped core-shell structure tin pyrophosphate negative electrode material as well as a preparation method and application thereof, and belongs to the technical field of electrochemical energy storage materials. The preparation method comprises the following steps: mixing tetravalent tin salt and a phosphonic acid organic ligand, and carrying out hydrothermal reaction to obtain a tin-based metal organic framework precursor; the phosphonic acid organic ligand is selected from one or two of phenylphosphonic acid or (pyridine-2-yl methyl) phosphonic acid; and carrying out heat treatment on the tin-based metal organic framework precursor at 550-700 DEG C to obtain the pomegranate-shaped core-shell structure tin pyrophosphate negative electrode material. The tetravalent tin salt and the specific phosphonic acid ligand are used for constructing the precursor, and the Kirkendall effect in the pyrolysis process is utilized to form a unique core-shell structure, so that the negative electrode material shows excellent cycling stability under high current density when being used for the potassium ion battery or the sodium ion battery.

The invention provides a carbon-supported ruthenium-doped iron-based phosphide electrocatalyst as well as a preparation method and application thereof, and belongs to the field of electrocatalytic materials. The method comprises the following steps: mixing ruthenium trichloride, ferric trichloride and phenylphosphonic acid, and carrying out a coordination reaction to obtain an MOFs precursor; performing ultrasonic washing and purification on the obtained MOFs precursor to obtain a pure product; and placing the obtained pure product in a tubular furnace for calcination and carbonization to obtain the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst. The invention also provides the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst obtained by the preparation method. The carbon-supported ruthenium-doped iron-based phosphide provided by the invention has excellent electro-catalytic performance, and the overpotential for realizing electro-catalytic reduction hydrogen evolution is relatively low.

The application belongs to the technical field of flame-retardant polymers, and particularly relates to an intrinsic heat-conducting flame-retardant recycled epoxy resin and a preparation method thereof. The preparation method comprises the following steps: (1) diethanolamine is reacted with 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) to obtain an intermediate A; (2) the intermediate A is subjected to polycondensation reaction with phenylphosphonic acid to obtain a terminal phosphonic acid group polyester flame retardant (PEF); (3) 4,4'-diphenol is epoxidized to obtain a liquid crystal epoxy precursor LEP; and (4) the PEF, the LEP and 3,3'-dithiodipropionic acid are mixed and heated and cured to prepare the epoxy resin. The prepared epoxy resin has intrinsic heat conduction, flame retardation and high efficiency recycling, and is a highly potential polymer material.

This invention discloses a nitrogen-phosphorus flame retardant, a composition and composite material containing the flame retardant, its preparation method, and its application. The flame retardant has a structure as shown in formula (I), where n is an integer from 100 to 150. The preparation method of the flame retardant includes: synthesizing bis(4-formylphenyl) phenylphosphonate and bis(4-aminophenyl)phenylphosphonate, reacting the two to generate a Schiff base, and then reacting it with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to obtain the nitrogen-phosphorus flame retardant PCNPO. This flame retardant, when compounded with melamine cyanurate (MCA), can be used to prepare flame-retardant nylon 6 composite materials. This invention, through the synergistic effect of PCNPO and MCA, enables nylon 6 to achieve the UL94 V-0 flame retardant standard at a low addition level, while maintaining excellent mechanical properties and processing stability, and exhibiting strong charring ability, simple process, and environmental friendliness. (I)

The invention discloses a production method of a flame-retardant BOPET optical base film. The base film comprises an outer surface layer, a middle core layer and an inner surface layer, the outer surface layer is PET (Polyethylene Terephthalate); the middle core layer is composed of PET, GF, decabromodiphenyl ether, an antioxidant and phenylphosphonic acid cerium; and the inner surface layer is composed of PET, PEN and nano silicon dioxide. The PEN of the inner surface layer has more excellent mechanical and heat-resistant properties and can enhance PET, and the middle core layer uses decabromodiphenyl ether and cerium phenylphosphonate together for the PET / GF composite material, so that the flame retardant property of the composite material can be greatly improved.

The invention relates to the technical field of flame-retardant materials, in particular to flame-retardant polyurethane soft foam based on phenylphosphonic acid intercalated kaolin as well as a preparation method and application of the flame-retardant polyurethane soft foam. Preparing potassium acetate intercalated kaolin; preparing phenylphosphonic acid intercalated kaolin; the preparation method comprises the following steps: adding phenylphosphonic acid intercalated kaolin into a chitosan aqueous solution, immersing polyurethane foam, continuously and slowly stirring, taking out and drying after immersing, then immersing in a glutaraldehyde ethanol solution, stirring, taking out and drying to obtain the flame-retardant polyurethane soft foam. By adopting the steps, the prepared chitosan-coated phenylphosphonic acid intercalated kaolin coating has low heat release rate and smoke release rate, and also has excellent flame retardant property; the chitosan-coated phenylphosphonic acid intercalated kaolin coating and the flame-retardant polyurethane soft foam can significantly reduce the combustible gas release and smoke generation rate under a thermal exposure condition.

Organometallic precursor solutions containing one or more phosphonate, such as methylphosphonic acid, tert-butylphosphonic acid, diethoxyalyllphosphonate, benzylphosphonic acid, and phenylphosphonic acid, are described. Corresponding methods for forming radiation patternable coatings as well as methods for forming a pattern using a solventless developing process are also described. The incorporation of a phosphonate into an organometallic photoresist composition, such as an organotin photoresist composition, is described as a way to increase stability of organometallic precursor solutions, to improve the homogeneity of organometallic photoresist films, and / or to improve the patterning performance of organometallic photoresist coatings.

The invention provides a phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand which is prepared by the following steps: in an inert gas atmosphere, mixing a compound benzoxazole with anhydrous tetrahydrofuran, cooling to-95 to-65 DEG C, adding an n-butyllithium solution dissolved in an organic solvent, stirring at-95 to-65 DEG C for 0.5-4 hours, adding diphenylphosphoryl chloride, stirring at room temperature for 8-10 hours, filtering, washing, and drying to obtain the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand. Carrying out post-treatment on the obtained reaction liquid to obtain a phenyl phosphonic acid bis (o-isocyano phenol) ester ligand; compared with the most common organic dye photosensitizer, the copper-based photosensitizer prepared from the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand overcomes the defect that the catalytic activity of the organic dye photosensitizer is rapidly reduced under long-term illumination, and in addition, the organic dye photosensitizer is easy to generate an aggregation-induced quenching effect; the photosensitizer disclosed by the invention does not generate an aggregation-induced quenching effect; compared with an iridium complex photosensitizer which is commonly used at present, the cuprous photosensitizer provided by the invention is more environment-friendly.

This invention relates to a rare-earth Ce-O-P core-shell structure-coated TPU flame-retardant material and its preparation method, belonging to the field of polymer combustion-supporting materials technology. It aims to address the problems of poor water resistance, easy precipitation of flame retardants, and decreased flame retardant rating and mechanical properties after boiling in water in existing flame-retardant TPUs. The material of this invention is composed of TPU, a rare-earth CeOP core-shell structure halogen-free flame retardant, a compatibilizer and dispersant, mineral oil, and an antioxidant; wherein the halogen-free flame retardant includes a rare-earth cerium phenylphosphonate compound and a phosphorus-nitrogen flame retardant. This invention obtains the rare-earth CeOP core-shell structure flame retardant through stepwise synthesis, and then blends and granulates it with TPU and other materials. After boiling in water at 90-120℃ for 168 hours, the material shows no precipitation, maintains the UL94 V0 rating (0.8mm), retains a tensile strength of >90%, and a breakage elongation of >100%.

The invention provides a zinc phenylphosphonate complex, a resin composition, and a moisture-curable hot-melt urethane resin adhesive. The zinc phenylphosphonate complex can further shorten the curing time of a moisture-curable hot-melt urethane resin and can be suitably used as a crystal nucleating agent. The zinc phenylphosphonate complex is represented by formula (1), and the zinc phenylphosphonate complex has a specific surface area of 20.0 m2 / g or more as measured by a BET method based on nitrogen adsorption. [Chemical Formula 1]

The invention belongs to the field of polymer composite materials, and discloses a flame-retardant nylon composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 60 to 85 parts of modified polyamide resin, 12 to 20 parts of polysulfonyldiphenyl phenyl phosphonate, 25 to 45 parts of glass fiber, 0.3 to 1 part of gamma-aminopropyltriethoxysilane, 0.5 to 3 parts of hyperbranched polyesteramide, 0.5 to 1.5 parts of polytetrafluoroethylene coated anti-dripping agent and a specific antioxidant. The core innovation lies in that the molecular chain stability is improved through the p-xylylenediamine end group modified polyamide, and the UL94 V-0 level flame retardance of the ultrathin wall (0.8 mm), the cracking resistance at the temperature of-40 DEG C and the high retention rate after long-term thermal aging at the temperature of 120 DEG C are achieved in combination with the synergistic effect of interface bridging of the silane pretreated glass fiber and the hyperbranched polymer. The preparation process adopts a segmented temperature control extrusion and downstream injection anti-dripping agent technology, so that the dispersity of the components is guaranteed. The material is suitable for a new energy automobile battery pack upper cover plate and a photovoltaic inverter shell, and the industrial problems of light weight, high insulation, long-acting sealing and the like are solved.

The present invention relates to new mixtures of phenylphosphonic acid diaryl esters which exhibit good flame retardant properties and a high plasticizing effect in thermoplastic molding compositions.

The application discloses a perovskite solar cell based on a cross-linking interface passivation layer and relates to the technical field of photovoltaic cell materials. The perovskite solar cell comprises, from bottom to top, a transparent conductive substrate, an electron transport layer, a perovskite light absorption layer, a cross-linking interface passivation layer, a hole transport layer and a metal electrode. The cross-linking interface passivation layer is a 4-[10-(4-{1,2,2-trifluorovinyl)oxy}phenyl)-10H-phenoxazine-2-yl]phenylphosphonic acid material. The cross-linking interface passivation layer can significantly improve the photovoltaic performance and stability, and the cross-linking network greatly enhances the intrinsic stability of the device. In a double 85 aging test at 85 DEG C / 85%RH, the time required for the device efficiency to decay to 80% of the initial value can be more than 1000 hours.

The present application belongs to the technical field of epoxy resin materials, and particularly relates to a P / N / S type flame retardant, a synthesis method and application thereof in epoxy resin. In the present application, 2-amino benzothiazole and phenyl phosphonic acid are reacted in an alcohol solvent system under heating conditions, and white crystals are separated out after cooling, thus synthesizing a novel flame retardant. In the chemical structural formula of the flame retardant, 2-amino benzothiazole and phenyl phosphonic acid are combined to form an ionic compound by electrostatic attraction. The flame retardant is directly mixed with bisphenol A diglycidyl ether monomer and used for preparing epoxy resin materials. The novel flame retardant synthesized in the present application has high flame retardant efficiency, when the addition amount is 5wt%, the oxygen index of the epoxy resin cured product can be increased to 36.4%, and the vertical burning passes UL-94 V-0 level. More importantly, the mechanical strength is increased by 1.7 times compared with pure EP.

The present invention discloses a preparation method of polylactic acid mixed with phenylphosphonate, and relates to the technical field of polylactic acid processing aids. Through S10, spraying phenylphosphonate slurry onto the surface of polylactic acid, setting the temperature to 70-90°C, stirring at low speed for 0.1-1h, and ending the spraying; S20, turning on high-speed stirring, setting the temperature to 100-120°C, mixing and drying for 15-90min; S30, obtaining polylactic acid mixed with phenylphosphonate; spraying the phenylphosphonate slurry onto the surface of polylactic acid by spraying through an atomizing nozzle. The phenylphosphonate nucleating agents involved in the present invention include calcium phenylphosphonate, magnesium phenylphosphonate, zinc phenylphosphonate, and sodium phenylphosphonate. The raw materials are widely available and are added to the matrix polylactic acid without affecting the heat resistance and degradation performance of the material, and the nucleating agent effect is significant. The hydrothermal method and the in-situ mixing method are used in combination. Compared with other hydrothermal methods for preparing polylactic acid nucleating agents, the synthesis time of the nucleating agent is greatly shortened, saving energy.

The present invention relates to new flame-retardant thermoplastic molding compositions containing specific phenylphosphonic acid diaryl esters which are characterized by good flame retardant properties and high plasticizing effect.

The invention belongs to the technical field of chemical analysis and detection, and particularly relates to a liquid phase detection method of phenylphosphonic acid derivative photoinitiators. Comprising the following steps: (1) preparing a raw material positioning solution, a raw material standard solution, a sample solution to be detected, a blank solution and a mobile phase of the phenylphosphonic acid derivative photoinitiator; (2) carrying out ultrasonic preparation on related samples and filtering for later use; and (3) detecting and analyzing the phenylphosphonic acid derivative photoinitiator related sample by using a high performance liquid chromatograph. The invention establishes a proper liquid phase method for detecting the phenylphosphonic acid derivative photoinitiator. The method is suitable for detection of various phenyl phosphoric acid derivative photoinitiators, and the method has good response to raw materials, intermediate states and products, and has an obvious separation effect. Compared with other detection methods, the liquid phase method is simple and rapid, and the corresponding detection cost is low.

This invention discloses a precursor and its preparation method, belonging to the field of lithium-ion battery cathode material technology; the molecular formula of the organic-inorganic hybrid manganese-iron precursor is Mn. x Fe y [C6H5PO3]·nH2O, where x+y=1, and 0.2≤x≤0.9, 0<n≤2. The organic-inorganic hybrid manganese-iron precursor prepared in this invention achieves a highly uniform atomic-level distribution of the two metal elements by uniformly complexing manganese and iron ions at the molecular level using phenylphosphonic acid ligands. This solves the phase separation and structural instability problems caused by elemental segregation in lithium manganese iron phosphate materials, thus laying a uniform and controllable compositional and structural foundation for the subsequent synthesis of high-performance cathode materials.

The invention discloses a copper-based catalyst and a preparation method and application thereof.The preparation method comprises the steps that coprecipitation treatment is conducted on metal ions in a solution containing copper and zinc through a precipitator, the pH value is controlled to be 6-7 in the whole process, and aging is conducted after coprecipitation treatment is completed; after aging is finished, continuously adding a solution containing a phenylphosphonic acid analogue; and after separating, washing and drying, roasting to obtain the copper-based catalyst. The preparation method of the copper-based catalyst provided by the invention is simple in preparation process, good in repeatability and easy for large-scale production.

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) modified material and a preparation method of the flame-retardant ABS modified material, and belongs to the technical field of high polymer materials. The invention discloses a flame-retardant ABS (acrylonitrile-butadiene-styrene) composite material, which comprises, by weight, 65-75 parts of ABS resin, 10-15 parts of a high-molecular-weight phosphorus flame retardant, 6-12 parts of a bamboo fiber graphene microsphere aid, 7-15 parts of modified lignin-silicon dioxide powder, 3-8 parts of a compatibilizer, 0.3-0.8 part of an antioxidant and 1.0-2.0 parts of a lubricant, the high-molecular-weight phosphorus flame retardant adopts polysulfonyldiphenylphenyl phosphonate, the compatibilizer adopts a maleic anhydride grafted compatibilizer, and the flame retardant adopts a modified lignin-silicon dioxide powder. The antioxidant is composed of an antioxidant 1076 and an antioxidant 168, the ratio of the antioxidant 1076 to the antioxidant 168 is 1: 1-1: 2, and the lubricant adopts calcium stearate. Through the mode, the bamboo fiber graphene microsphere auxiliary agent and the modified lignin-silicon dioxide powder are compounded, a synergistic gain effect is achieved on the thermal deformation temperature and the tensile strength of the prepared flame-retardant ABS modified material, and the thermal stability and the mechanical property of the flame-retardant ABS modified material are effectively improved.

The invention discloses a plant-based antibacterial and deodorant fiber and a preparation method thereof, and relates to the field of fibers. When the plant-based antibacterial and deodorant fiber is prepared, titanium dioxide is pre-modified by using gamma-glycidyl ether oxypropyl trimethoxy silane, and then is grafted with 3-amino-5-methyl-4H-1, 2, 4 triazole, so that modified nano titanium dioxide is prepared; the preparation method comprises the following steps: sulfonating nano-cellulose, and reacting with hexadecyl trimethyl ammonium bromide to prepare modified nano-cellulose; carrying out melt spinning on the modified nano titanium dioxide, the modified nano cellulose and polylactic acid to prepare polylactic acid fibers; carrying out low-temperature plasma treatment on the polylactic acid fibers to prepare ammoniated fibers; and immersing the ammoniated fiber in a post-treatment solution prepared from phenylphosphonic acid, ethanol and deionized water to prepare the plant-based antibacterial and deodorant fiber.

The invention discloses a composite filler and application thereof in preparation of a polylactic acid composite material, and belongs to the field of polylactic acid composite materials. The composite filler comprises silane modified inorganic filler particles and phenylphosphonic acid zinc particles, and the inorganic filler is talcum powder or silicon dioxide; the mass ratio of the zinc phenylphosphonate to the inorganic filler is (1-5): 1. When the composite filler is used as a nucleating agent for preparing the polylactic acid composite material, the crystallization property of polylactic acid can be effectively regulated and controlled, good balance of toughness and heat resistance of the polylactic acid composite material is realized, and the polylactic acid composite material has excellent toughness and heat resistance.

Disclosed herein are polymers that can be incorporated into pigment dispersions and inkjet ink compositions comprising a first monomer selected from the group consisting of ethylenically unsaturated hydrophobic monomers, and a second monomer selected from the group consisting of maleic anhydrides, maleic acids, and salts, esters, imides, and amides thereof. The polymer may have a portion of a second monomer functionalized with at least one organic group having a calcium index value greater than or equal to the calcium index value of the phenylphosphonic acid. Additionally and / or alternatively, the at least one polymer may be cross-linked by a second monomer. Dispersions and inkjet ink compositions comprising such polymers may further comprise at least one pigment and a liquid carrier. Methods of making such polymers are also disclosed.