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Polyacrylic acid is a weak anionic polyelectrolyte, whose degree of ionisation is dependent on solution pH. In its non-ionised form at low pHs, PAA may associate with various non-ionic polymers (such as polyethylene oxide, poly-N-vinyl pyrrolidone, polyacrylamide, and some cellulose ethers) and form hydrogen-bonded interpolymer complexes. [17]
Sodium polyacrylate (ACR, ASAP, or PAAS), [1]: 233 also known as waterlock, is a sodium salt of polyacrylic acid with the chemical formula [−CH 2 −CH(CO 2 Na)−] n and has broad applications in consumer products.
In polymer terminology, a polyacid is a polyelectrolyte composed of macromolecules containing acid groups on a substantial fraction of the constitutional units. Most commonly, the acid groups are –COOH, –SO 3 H, or –PO 3 H 2. [11]
It is used primarily for producing oil seals and packaging related to automobiles. Acrylic elastomer can generally be characterized as one of two types. "Old" types include ACM (copolymer of acrylic acid ester and 2-chloroethyl vinyl ether) containing chlorine and ANM (copolymer of acrylic acid ester and acrylonitrile) without chloride. "New ...
Poly(methacrylic acid) Poly(methyl acrylate) Poly(methyl methacrylate) Poly(N-isopropylacrylamide) Poly(pentafluorophenyl acrylate) Polyacrylamide; Polyacrylic acid; Polyacrylonitrile; PolyAMPS; PolyAPTAC; Polycarbophil calcium; Polyhydroxyethylmethacrylate; Potassium polyacrylate
PAGE was first used in a laboratory setting in the early 1950s. In 1959, the groups of Davis and Ornstein [4] and of Raymond and Weintraub [5] independently published on the use of polyacrylamide gel electrophoresis to separate charged molecules. [5] The technique is widely accepted today, and remains a common protocol in molecular biology labs.
Respiratory virus season is officially here in the U.S., making it a prime time to catch a cold. And because the average adult gets two or three colds a year, you could be dealing with an ...
Potassium polyacrylate is a potassium salt of polyacrylic acid with the chemical formula [−CH 2 −CH(CO 2 K)−] n. As a type of superabsorbent polymer, it can absorb hundreds of times its original weight in purified water.