Description

Chitosan-Poly(Acrylic Acid) CAS NO 114539-82-1 is a synthetic polyelectrolyte complex formed by the interaction of chitosan, a natural biopolymer, with poly(acrylic acid). This material is engineered to combine the biocompatibility and biodegradability of chitosan with the high water-absorbency and gel-forming properties of poly(acrylic acid). It is primarily sought after by industries requiring advanced, stimuli-responsive materials for controlled release and absorption applications. Its unique properties make it a critical component in the development of next-generation biomedical and environmental technologies.

Application

• Drug Delivery Systems: As a pH-sensitive carrier for the controlled and targeted release of pharmaceutical actives.
• Wound Care & Hemostatic Agents: In advanced wound dressings and hemostatic sponges that promote clotting and healing.
• Superabsorbent Polymers (SAPs): For use in hygiene products, agriculture (water retention), and industrial spill control.
• Water Treatment: As a flocculant or adsorbent for the removal of heavy metals and dyes from wastewater.
• Tissue Engineering Scaffolds: Providing a biodegradable and biocompatible matrix for cell growth and tissue regeneration.
• Cosmetic & Personal Care: In formulations for moisturizing creams, gels, and hair care products as a film-forming and conditioning agent.
• Bioadhesives: For medical applications requiring strong, biocompatible adhesion to wet tissues.
• Sensor Technology: As a component in biosensors and chemical sensors due to its responsive swelling behavior.

Basic Information

Product Name	Chitosan-Poly(Acrylic Acid)
CAS No.	114539-82-1
Molecular Formula	(C6H11NO4)n-(C3H4O2)m
Molecular Weight	Variable (Polymer)
Synonyms	Chitosan-PAA Complex; Chitosan-Polyacrylic Acid Complex; Chitosan-Polyacrylate; Chitosan-Acrylic Acid Polymer; Poly(acrylic acid)-chitosan; CS-PAA; Chitosan grafted poly(acrylic acid); Biopolymer-polyelectrolyte complex
EINECS	Contact for details

Quality Control

Our Chitosan-Poly(Acrylic Acid) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in composition, molecular weight distribution, and functional performance. While specific grades can be tailored, our standard quality commitment includes verification of key parameters such as degree of deacetylation of the chitosan component, acrylic acid content, and swelling ratio. Certificates of Analysis (COA) documenting these and other critical specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation of its functional properties. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
pH (1% solution/dispersion)	4.0 - 6.5
Moisture Content	≤ 10.0 %
Ash Content	≤ 2.0 %
Swelling Ratio (in water)	Contact for details
Viscosity (1% solution)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines
Microbial Limits	Meets USP <61> / Ph. Eur. 2.6.12

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.