Description

Poly(4-Vinyl-1-Methylpyridinium Bromide) is a cationic polyelectrolyte derived from the quaternization of poly(4-vinylpyridine). This polymer is valued for its strong positive charge and water-soluble properties, making it a versatile material for applications requiring surface modification, charge neutralization, or antimicrobial activity. It is particularly relevant for researchers and manufacturers in the water treatment, biomedical, and specialty chemical sectors seeking advanced functional polymers.

Application

• Flocculant and Coagulant Aid: Used in water and wastewater treatment processes to neutralize negatively charged colloidal particles, promoting aggregation and settling.
• Antimicrobial Coatings: Incorporated into surface coatings and materials (e.g., textiles, medical devices) to impart biocidal properties due to its quaternary ammonium groups.
• Gene Delivery and Drug Carrier: Investigated in biomedical research as a cationic vector for complexing with nucleic acids (DNA, RNA) in non-viral gene therapy and controlled drug release systems.
• Paper and Pulp Industry: Acts as a retention aid and drainage promoter in papermaking by interacting with cellulose fibers and fillers.
• Enhanced Oil Recovery (EOR): Studied for use in chemical flooding to modify the rheology of injection water and improve oil displacement in reservoirs.
• Conductive Polymer Composites: Serves as a dopant or component in the development of electrically conductive polymer blends and composites.

Basic Information

Product Name	Poly(4-Vinyl-1-Methylpyridinium Bromide)
CAS No.	62962-69-0
Molecular Formula	(C8H10N•Br)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(N-Methyl-4-vinylpyridinium Bromide); P4VMPBr; Poly(4-Vinyl-N-methylpyridinium Bromide); Poly(1-Methyl-4-vinylpyridinium Bromide); Poly(Methyl-4-vinylpyridinium Bromide); Poly(4-Vinylpyridinium Methyl Bromide); Quaternary Ammonium Polymer; Cationic Poly(4-vinylpyridine) Salt
EINECS	Contact for details

Quality Control

Our production of Poly(4-Vinyl-1-Methylpyridinium Bromide) adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including molecular weight distribution, degree of quaternization, and ionic content. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and physical properties is provided with every shipment 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 room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Minimize exposure to air and humidity during handling to prevent caking or degradation of properties.

Specification

Item	Specification
Appearance	White to pale yellow powder or solid
Identification (IR)	Conforms to structure
Assay (Polymer Content)	≥ 95.0 %
Degree of Quaternization	≥ 90 %
Moisture Content (KF)	≤ 5.0 %
Bromide Counter-ion Content	Conforms to theoretical
Solubility (in Water)	Clear, colorless to faint yellow solution

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