At NINGBO INNO PHARMCHEM CO.,LTD., we believe in demystifying the science behind the chemicals we supply. Poly(Acrylic Acid) (CAS 9007-20-9), widely known by its trade name Carbomer, is a fascinating synthetic polymer with a unique structure and a wide array of applications. Understanding its science is key to appreciating its role in everyday products, from cosmetics to pharmaceuticals.

Poly(Acrylic Acid) is a polymer characterized by repeating acrylic acid monomer units. Its chemical formula, (CH2-CHCO2H)n, highlights the presence of carboxylic acid groups along the polymer chain. These groups are responsible for PAA's ability to interact with water and form gels. In a neutral or alkaline environment, these carboxylic groups deprotonate, becoming negatively charged and attracting water molecules. This is the basis of its thickening and gelling properties, making it an excellent poly(acrylic acid) thickener agent.

The synthesis of Carbomers typically involves free radical polymerization, often with cross-linking agents like allyl ethers. This cross-linking creates a three-dimensional polymer network that enables the material to swell significantly when hydrated, trapping water and increasing viscosity. This property is fundamental to its use in achieving desired textures in products, as seen in carbomer cosmetic uses.

The molecule's structure contributes to its versatility as a poly(acrylic acid) suspending agent and emulsifier. It can effectively disperse insoluble particles in liquids and stabilize oil-in-water emulsions, preventing separation and ensuring product homogeneity. This makes it invaluable for formulating lotions, creams, and pharmaceutical suspensions.

Carbomers are often classified by numbers, such as Carbomer 940 or Carbomer 980, indicating variations in their cross-linking and molecular weight, which influence their thickening efficiency and texture. When you buy poly(acrylic acid) online, understanding these nuances helps in selecting the right grade for your specific application. NINGBO INNO PHARMCHEM CO.,LTD. offers a range of PAA products to meet diverse formulation needs.

The poly(acrylic acid) chemical properties, including its pH sensitivity and interaction with electrolytes, are important considerations for formulators. It typically requires neutralization with a base (like triethanolamine or sodium hydroxide) to achieve optimal thickening and clarity. This scientific understanding allows for the successful integration of PAA into a vast array of products.

NINGBO INNO PHARMCHEM CO.,LTD. is proud to supply high-quality Poly(Acrylic Acid), backed by comprehensive technical data and support. We enable our clients to harness the science of this remarkable polymer to create innovative and effective products.