Description

Polymaleimide Sodium Mol. Wt.*5,000-10,000 is a water-soluble, synthetic polyelectrolyte derived from maleimide. This specific molecular weight grade offers a unique balance of viscosity modification, dispersing power, and ionic character, making it a versatile functional additive. It is particularly valuable in industries requiring high-performance water treatment, mineral processing, and advanced material synthesis. The compound is supplied as a hygroscopic solid and is identified by CAS No. 119039-87-1.

Application

• Water Treatment: Acts as a scale inhibitor and dispersant in cooling water and boiler feed systems.
• Mineral Processing: Used as a selective flocculant and dispersing agent in the beneficiation of ores like phosphate and potash.
• Paper Manufacturing: Functions as a retention aid and drainage promoter in papermaking processes.
• Enhanced Oil Recovery (EOR): Employed in polymer flooding to increase the viscosity of injection water for improved oil displacement.
• Textile & Dyeing: Serves as a leveling agent and anti-precipitant for dyes and pigments.
• Ceramics & Coatings: Acts as a binder and rheology modifier in ceramic slips and specialty coatings.
• Personal Care: Utilized as a film-forming agent and viscosity controller in hair and skin care formulations.
• Research & Development: Serves as a building block or cross-linking agent in the synthesis of advanced polymeric materials and hydrogels.

Basic Information

Product Name	Polymaleimide Sodium Mol. Wt.*5,000-10,000
CAS No.	119039-87-1
Molecular Formula	(C4H2NNaO2)n
Molecular Weight	5,000 - 10,000 g/mol (Average)
Synonyms	Sodium Polymaleimide; Poly(sodium maleimide); Maleimide, sodium salt, homopolymer; Poly(Na maleimide); PMI-Na; Sodium poly(maleimide); Poly(maleimide) sodium salt; Sodium maleimide polymer
EINECS	Contact for details

Quality Control

Our Polymaleimide Sodium is manufactured under a stringent quality management system. Each batch is tested to ensure consistent molecular weight distribution, purity, and performance characteristics. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing key parameters such as assay, residual moisture, and viscosity. We adhere to relevant industry standards and can support compliance documentation as required.

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 a dry environment to prevent caking and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as Sodium Polymaleimide)	≥ 95.0 %
Molecular Weight (Average)	5,000 - 10,000 Da
Moisture Content	≤ 5.0 %
pH (1% aqueous solution)	6.0 - 8.5
Viscosity (Brookfield, 25°C)	Contact for details
Residual Monomer	≤ 0.5 %

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