摘要:
Hybrid water dispersions are disclosed which can be used in the formation of coating compositions having good blush resistance, abrasion resistance, blister resistance, hardness and scratch resistance, in some embodiments, the coating compositions are used to coat substrates such as cans and packaging materials for the storage of food and beverages. Hybrid water dispersion of the invention may be prepared by mixing a (poly) ethylene (meth) acrylic acid copolymer in water to form a mixture, and reacting the mixture with an organosilane compound.
摘要:
The present disclosure relates to solid-phase azide supports, methods for making solid-state azide supports, and methods for capturing alkynes using the same. The present disclosure also relates to kits for solid-phase azide supports.
摘要:
Polymer of formula (1) bearing an alkoxysilane end group: in which: is a double or single bond; each of R1, R2, R3, R4, R5 and R6 is H, a halo, an alkoxycarbonyl or an alkyl, m and p are each from 0 to 5, each of R and R′ is an alkyl, Z is an alkylene, optionally interrupted with COO, q is 0 or 1, r is 0, 1 or 2, and n is such that the number-average molar mass of the polymer (1) is from 400 to 50 000 g/mol, and the polydispersity index of the polymer (1) is from 1.0 to 2.0. Preparation by ring-opening metathesis polymerization.Use as an adhesion promoter or a reactive plasticizer.
摘要:
Provided are: a polymer-supported phosphane compound exhibiting excellent catalytic reaction activity; a complex including the compound and a transition metal; and a catalyst including the complex. This polymer compound includes: units of threefold styrene cross-linked phosphane; and styrene units having substituent groups (R) in position 4 (provided that R represents hydrogen, a C1-6 lower alkyl group, a C1-6 lower alkoxy group, or a polar functional group). In the formula in which the polymer compound includes structure (1), PS represents a polystyrene unit chain including the styrene units having the substituent groups (R). The complex includes the polymer and a transition metal. The catalyst for an organic compound coupling reaction includes the complex.
摘要:
Disclosed are a modified conjugated diene polymer and a method for preparing the same. Provided are advantageously a modified conjugated diene polymer and a method for preparing the same which provide superior compatibility with an inorganic filler, heat generation, tensile strength and abrasion resistance, low fuel consumption and excellent resistance on wet roads.
摘要:
A method for producing a modified conjugated diene-based polymer having a good balance between the hysteresis loss properties and the wet skid resistance, practically sufficient abrasion resistance and breaking strength, and high processability when formed into a vulcanized product is provided. A method for producing a modified conjugated diene-based polymer, comprising: a polymerization step of polymerizing a conjugated diene compound, copolymerizing conjugated diene compounds, or copolymerizing a conjugated diene compound with an aromatic vinyl compound using an alkali metal compound or an alkaline earth metal compound as a polymerization initiator to obtain a conjugated diene-based polymer having an active end, and a modifying step of reacting a compound represented by following formula (1) with the active end of the conjugated diene-based copolymer.
摘要:
The present invention provides a functional diene polymer, a preparation method thereof and a rubber composition comprising the functional diene polymer. The functional diene polymer comprises at least one type of conjugated diene structural units and silane coupler functional units represented by formula (I) in its molecular chain, and the number-average molecular weight of the functional diene polymer is 50,000˜1,000,000; R1-R4 are C1-C20 linear or branched alkyl or heteroatom-containing C1-C20 linear or branched alkyl, and the heteroatom is selected from one or more of halogen, oxygen, sulfur, silicon, and phosphorus. Not only the relationship between the wet slip resistance and the rolling resistance of the functional diene polymer is effectively improved, but also the offensive odor produced in the rubber mixing process owing to the addition of the silane coupler is reduced.
摘要:
Element tags based on novel metal-polymer conjugates are provided for elemental analysis of analytes, including ICP-MS. A polymer backbone is functionalized to irreversibly bind metals that are selected prior to use by the user. The polymer is further functionalized to attach a linker which allows for attachment to antibodies or other affinity reagents. The polymer format allows attachment of many copies of a given isotope, which linearly improves sensitivity. The metal-polymer conjugate tags enable multiplexed assay in two formats: bulk assay, where the average biomarker distribution in the sample is diagnostic, and single cell format to distinguish a rare (for example a diseased) cell in a complex sample (for example, blood).
摘要:
The invention concerns a compound formed by functionalised micro- or nanoparticles covalently associated with rheology-modifying polymers. The invention is characterised in that the functionalised micro- or nanoparticles are functionalised inorganic or metal oxide micro- or nanoparticles, in particular aluminium oxide (Al2O3), copper oxide (CuO), iron oxide (Fe3O4 or γ-Fe2O3), magnesium oxide (MgO), silica (SiO2), titanium dioxide (TiO2) or zinc oxide (ZnO), having a nominal diameter of between 1 and 1500 nm; and in that the rheology-modifying or -adapting polymers are chosen from non-associative polymers or associative polymers. The invention applies to protection or decontamination of the skin.
摘要翻译:本发明涉及由与流变改性聚合物共价结合的官能化微米或纳米颗粒形成的化合物。 本发明的特征在于官能化的微粒或纳米颗粒是官能化的无机或金属氧化物微纳米颗粒,特别是氧化铝(Al 2 O 3),氧化铜(CuO),氧化铁(Fe 3 O 4或γ-Fe 2 O 3),氧化镁 MgO),二氧化硅(SiO 2),二氧化钛(TiO 2)或氧化锌(ZnO),标称直径在1至1500nm之间; 并且所述流变改性或应用聚合物选自非缔合聚合物或缔合聚合物。 本发明适用于皮肤的保护或去污。
摘要:
A method of preparing a polymer, the method comprising: metalating an organophosphine compound in the substantial absence of monomer to form a metalated organophosphine; and introducing the metalated organophosphine to monomer including conjugated diene monomer to form a reactive polymer.