Description

Poly(Vinylalcohol-Co-Vinyl Acetate-Co-Itaconic Acid) is a specialized, water-soluble copolymer engineered for enhanced performance in demanding formulations. This terpolymer combines the film-forming strength of polyvinyl alcohol with the flexibility of vinyl acetate and the reactive functionality of itaconic acid, offering superior adhesion, binding, and cross-linking capabilities. It is a critical raw material for industries requiring advanced polymeric additives, particularly in sectors like pharmaceuticals, specialty adhesives, and high-performance coatings where precise chemical functionality is paramount.

Application

• Pharmaceutical Film Coating & Binding: Used as a film-forming agent and binder in tablet coatings, providing a robust, soluble barrier with excellent adhesion properties.
• Specialty Adhesives & Sealants: Serves as a key component in water-based adhesive formulations, enhancing tack, flexibility, and bond strength on various substrates.
• Paper Sizing & Coating: Improves surface strength, printability, and oil/grease resistance in paper and paperboard applications.
• Textile Sizing & Finishing: Acts as a warp size for yarns and a finishing agent to impart stiffness, handle, and durability to fabrics.
• High-Performance Paints & Coatings: Functions as a thickener, stabilizer, and adhesion promoter in aqueous coating systems.
• Ceramic & Fiberglass Binder: Provides green strength and shape retention as a temporary organic binder in ceramic and fiberglass production.
• Photographic & Imaging Films: Utilized in the production of photosensitive layers and specialty films due to its excellent film-forming characteristics.
• Controlled-Release Matrices: Employed in agricultural and pharmaceutical sectors to create matrices for the sustained release of active ingredients.

Basic Information

Product Name	Poly(Vinylalcohol-Co-Vinyl Acetate-Co-Itaconic Acid)
CAS No.	94479-84-2
Molecular Formula	(C₂H₄O)ₓ·(C₄H₆O₂)ᵧ·(C₅H₆O₄)z
Molecular Weight	Varies by grade (typically 30,000 - 200,000 g/mol)
Synonyms	PVA-VAc-IA Terpolymer; Vinyl Alcohol/Vinyl Acetate/Itaconic Acid Copolymer; Poly(vinyl alcohol-co-vinyl acetate-co-itaconic acid); Itaconic Acid-Modified Polyvinyl Acetate; PVOH-VAc-IA; Water-Soluble PVA Copolymer; Acetic Acid Ethenyl Ester, Polymer with Ethenol and 1-Propene-1,2,3-tricarboxylic Acid
EINECS	Contact for details

Quality Control

Our Poly(Vinylalcohol-Co-Vinyl Acetate-Co-Itaconic Acid) is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent purity, viscosity, degree of hydrolysis, and residual monomer content. Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in its original, moisture-proof packaging to prevent caking and degradation. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as copolymer)	≥ 95.0%
Degree of Hydrolysis	86.0 - 90.0 %
Viscosity (4% aq. sol., 20°C)	10 - 60 mPa·s
Volatile Matter	≤ 5.0 %
pH (4% aq. solution)	4.0 - 6.0
Residual Vinyl Acetate	≤ 0.5 %

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