What Are Acrylic Polymers
The properties, forms and uses of acrylic acid and its ester polymers vary by monomer and polymerization method. Currently, acrylic polymers are widely used in daily chemicals, textiles, coatings, food, construction, adhesives, medical treatment, water treatment and electronics and other fields. With the continuous deepening of industrial manufacturing and production research and development, the demand for acrylic acid varieties in various industries has also increased rapidly. Among the various applications of acrylic, acrylate emulsions and solution polymers are the most widely used. Acrylate emulsion polymers are widely used in various coating formulations, chemical fiber filling, non-woven fabrics, fabric bonding or lamination, cashmere, back coating and printing pigment base materials due to their excellent transparency, hardness, color durability, UV stability and chemical inertness. In addition, acrylate emulsions can also be used as processing agents for polyvinyl chloride (PVC) materials to improve toughness, impact resistance, etc.
Generally, acrylic polymers can be divided into acrylate & methacrylate polymers and acrylic acid polymers. Among them, acrylate copolymer (AP) is a general term for polymers obtained by copolymerization of acrylate, including methyl acrylate, ethyl ester, butyl ester and methyl methacrylate. Acrylate monomers can be additional acrylic compounds or other unsaturated compounds with double bonds, because the monomers have living double bonds and are prone to self-polymerization as well as copolymerization.
Direct esterification of alcohols and acrylic acid is the only important way to produce acrylates. Macromonomers can produce 40 or 50 different products, mainly including methyl acrylate (MA), ethyl acrylate (EA), butyl acrylate (n-BA), acrylic acid-2-7, ester and acrylic acid, among others. The yield accounts for more than 95% of the yield of acrylic monomer series. Since Joseph Redenbach first discovered the oxidation of acrolein to acrylic acid in 1843, its production methods have successively experienced fluoroethanol method, oxo synthesis method, ketene method, acrylonitrile hydrolysis method and propylene oxidation method. But due to technical and economic reasons, these four processes have been basically eliminated. Presently, almost all acrylic acids and esters in industrial production use propylene two-step oxidation technology.
Resource from https://polymer.bocsci.com/pro....ducts/acrylic-polyme

Applications of Furans
Introduction
Furans (also known as oxole) constitute a valuable type of heterocyclic compound with a five-membered structure, which is a conjugated oxygen-containing ring consisting four carbon atoms and one oxygen atom. They are widely abundant in natural substances especially in the pine tar, numerous biologically active compounds have been demonstrated that the furan moiety is the major structural framework.
Unmodified furans are slightly water-soluble, because the polar five-membered rings bring stable conjugated structure and limit the dissolution, but the oxygen atom can form hydrogen bond with water molecule which slightly promote the solubility. It is noteworthy that tetrahydrofuran is totally water-soluble owing to the absence of the conjugated structure. Furans possess relative low boiling point and melting point thus they are commonly presented as colorless liquid. We should notice that furans are flammable and slightly toxic, thus every care should be taken during storage and use. It is well known that furan has been utilized in organic solvents, chemical and biologic research, synthetic raw material and pharmacological studies.
Applications
Organic Synthesis:
Owing to the polar property of oxygen atom, all the furan rings possess the property of aromatic ring, which can participate in halogenation, nitration, sulfonation and other electrophilic substitution reactions. It is easy to open the furan ring to form polymer with strong acid, so it is necessary to utilize special reagent for nitrate or sulfonate reaction. Besides, furan can also take part in the catalytic hydrogenation to produce tetrahydrofuran, which is an important common polar solvent.
Material Chemistry:
Owing to the oxidizability of the oxygen-containing conjugated ring, furan compounds can be used to transport positive charges by a radical cation species, endowing the role as semiconductors. A series of furan rings are reported to be linked and constitute coplanar organic semiconductors.
Pharmaceutical Chemistry:
Furan compounds are widespread in natural drug molecules. Their derivatives are usually used to prepare medicinal precursors, which possess remarkable pharmacological and physiological activities, such as antibacterial, anticonvulsant, anti-tumor and anti-inflammatory behavior, etc. For example, furan can cause cytosine DNA hypermethylation of tumor, promote modification of histone and decreased expression of oncogenes.
Resource from https://buildingblock.bocsci.c....om/products/furans-3

An Introduction of Alcian Blue Stain Dyes
Alcian Blue is any member of the family of multivalent basic dyes, of which Alcian Blue 8G has historically been the most common and reliable member. It is used to stain acidic polysaccharides, such as glycosaminoglycans in cartilage and other body structures, certain types of mucopolysaccharides, sialylated glycans of cells, and the like. For many of these targets, it is one of the most widely used cationic dyes for optical and electron microscopy. Historically, Arsin Blue has been a popular staining method in histology, especially in light microscopes with paraffin-embedded sections and semi-thin resin sections. The portion of tissue specifically stained by this dye turns blue to blue-green after staining and is referred to as "basophilic" (compared to "eosinophilic" or "Sudanophilic". Alsin blue staining can be used in combination with H & E staining, PAS staining and van Gieson staining methods. Alsin blue can be used for quantification of acid glycans in differential spectrophotometric quantification in solution, and for staining glycoproteins in polyacrylamide gels or Western blots. Since the 1960s, biochemists have been using it to analyze acidic polysaccharides in urine to diagnose diseases such as mucopolysaccharidosis, but from the 1970s, partly because of the lack of Alcian use and partly because The length and tediousness of the process necessitates the development of alternative methods such as dimethylmethylene blue (DMB or DMM methods.
Colour
Solid arsine blue is a greenish black (sometimes dark blue purple) crystal with metallic luster. The aqueous solution was bright green blue. Although the compound arsine blue itself is unstable (see Stability below), the resulting stain is stable and lightfast.
Maximum absorption is affected by aggregation
In the aqueous solution, a large number of Arsin blue molecules accumulate into very large micelles that are too large to even be dialyzed. Therefore, it has a maximum absorption at ~ 600–615 nm, even at a fairly high dilution, which is actually not the maximum absorption of the dye monomer, but the maximum absorption of the polymer. Since the absorbed light has an orange-yellow spectrum, transmitted / reflected light is perceived by our eyes as a slightly greenish blue or cyan complementary color. In the aqueous solution, Alcan blue is discolored even when the molar concentration is one hundred percent of the molar concentration of toluidine blue, which is the primary color. There are only small steps in the absorption curve of monomer dyes at 670–680 nm representing monomer dyes, which are usually a few dyes and become less in the presence of salts 108M). However, when the solvent is DMSO (aprotic solvents with a moderate dielectric constant), Alsin blue does not aggregate and a large monomer absorption peak can be seen well. When using a solvent (such as ethanol) (or a mixture of ethanol and water) as a vehicle or a nonionic detergent (such as Triton X-10 to make exogenous micelles, a similar spectral shift similar to longer monomer peaks is also observed shift.
Resource from https://probes.bocsci.com/reso....urces/dyes-applicati