The disclosure belongs to the technical field of material science, and particularly relates to a method for preparing a high sensitivity temperature sensitive reversible color-changing microcapsule. According to the method, a series of novel fluorane dyes are designed and synthesized, the color-changing performance can be achieved without a color developing agent, the fluorane dyes are compounded with a phase change material according to a certain proportion, a series of two-component reversible temperature sensitive color-changing dyes are prepared, and then a two-component reversible thermochromic microcapsule with good color performance and color-changing response performance is prepared by adopting a solvent evaporation method. The two-component reversible thermochromic microcapsule provided by the disclosure can effectively alleviate the color lag phenomenon of a traditional three-component thermochromic capsule.

The present invention provides polymersomes comprising amphiphilic block-copolymers and their use to quantify ammonia in samples (e.g., body fluid samples). More particularly, it provides a polymersome comprising (a) a membrane, which comprises a block copolymer of poly(styrene) (PS) and poly(ethylene oxide) (PEO), wherein the PS/PEO molecular weight ratio is higher than 1.0 and lower than 4.0; and (b) a core which encloses an acid and at least one pH-sensitive dye. Compositions, strips and kits comprising the polymersomes are also provided along with methods of quantifying ammonia in a sample using the polymersomes, compositions and kit.

Disclosed is a controllable method for preparing phospholipid micelles, including: S1, preparing small phospholipid vesicles; S2, preparing a graphene thin-layer electrode substrate, S3, incubating, and S4, electroforming phospholipid micelles. According to the present application, lamellar graphene is used as the electrode substrate according to the present application, where a phospholipid bilayer film is firstly spread on the surface of the substrate, and phospholipid micelles are controlled in terms of formation as well as formation state by a certain alternating current electric field on the surface of graphene; the developed method of the present application is unique in design, simple in operation, and has the advantages of fast formation, short preparation cycle and good controllability.

The disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a blowing agent-containing hollow core, the polymer shell comprising a carboxylate-functionalised cellulose having a glass transition temperature (Tg) of at least about 125° C. The disclosure also relates to a method for preparing such thermally expandable microspheres, comprising mixing an aqueous phase that optionally comprises an emulsifier with an organic phase that comprises an organic solvent, a blowing agent and a carboxylate-functionalised cellulose having a Tg of at about least 125° C., to form a microsphere dispersion.

Disclosed are a method for manufacturing a microcapsule including a fragrance oil, and a microcapsule containing a fragrance oil. In the method for manufacturing a microcapsule including the fragrance oil, there is provided a fragrance oil-containing microcapsule which has an increased distribution of individual primary particles because the aggregation of the primary particles is suppressed even when the microcapsule is manufactured in a large quantity, has a uniform particle shape and excellent surface characteristics, shows an excellent strain recovery capability with respect to external pressure due to the high yield stress, and enables a stable support of the fragrance oil because the collapse of the microcapsule is suppressed. Also, there are provided a fragrance oil-containing microcapsule and a dispersion including the same, wherein the fragrance oil-containing microcapsule shows an excellent long-term fragrance diffusion-lasting property of the fragrance oil and has controlled release characteristics with respect to the fragrance oil.

The present invention relates to a method of forming a composite particle, a composite particle precursor formulation, a composite particle, and a composite material comprising a plurality of composite particles. The method of forming a composite particle may include the step of: contacting an active material particle, a modified oligomeric metal coordination complex, and at least one polymer, to thereby form a composite particle.

A method of preparing a fire extinguishing core-shell microcapsule by a one-pot oil-in-oil/ water emulsion technique. The method includes dissolving a fluid fluoroketone or hydrofluorocarbon fire extinguishing core material and a polymer shell material into a volatile solvent to form a composite mixture. The composite solution is emulsified into a polar phase and a non-polar phase by adjusting a concentration of a surfactant or via mechanical agitation to provide interfacial tension tuning. The volatile solvent is evaporated to precipitate a microcapsule having a fire extinguishing material core and a polymer shell. In a further aspect, the method includes incorporating the core-shell microcapsules in a polymer matrix.

A composition comprising an emulsion comprising a plurality of particles is provided. An article comprising a substrate, and a plurality of particles comprising a core and a shell, wherein the plurality of particles are in the form of a coating layer on the substrate is provided. Further, a method for coating a substrate, and a method for preparing the composition are provided.

The invention relates to a method of making hybrid organic-inorganic core-shell nano-particles, comprising the steps of a) providing colloidal organic particles comprising a synthetic polyampholyte as a template; b) adding at least one inorganic oxide precursor; and c) forming a shell layer from the precursor on the template to result in core-shell nano-particles. With this method it is possible to make colloidal organic template particles having an average particle size in the range of 10 to 300 nm; which size can be controlled by the comonomer composition of the polyampholyte, and/or by selecting dispersion conditions.

The invention also relates to organic-inorganic or hollow-inorganic core-shell nano-particles obtained with this method, to compositions comprising such nano-particles, to different uses of said nano-particles and compositions, and to products comprising or made from said nano-particles and compositions, including anti-reflective coatings and composite materials.

Disclosed is a controllable method for preparing phospholipid micelles, including: S1, preparing small phospholipid vesicles; S2, preparing a graphene thin-layer electrode substrate, S3, incubating, and S4, electroforming phospholipid micelles. According to the present application, lamellar graphene is used as the electrode substrate according to the present application, where a phospholipid bilayer film is firstly spread on the surface of the substrate, and phospholipid micelles are controlled in terms of formation as well as formation state by a certain alternating current electric field on the surface of graphene; the developed method of the present application is unique in design, simple in operation, and has the advantages of fast formation, short preparation cycle and good controllability.