Description

4-(Chloromethyl)Styrene Homopolymer is a functional polymer derived from the polymerization of 4-(chloromethyl)styrene, a monomer containing a reactive chloromethyl group. This material matters for its unique combination of polymer backbone stability and the versatile reactivity of the pendant chloromethyl functionality, which serves as a key site for further chemical modification. It is primarily needed by R&D chemists and process engineers in the specialty polymer, advanced materials, and pharmaceutical industries for creating tailored polymeric architectures, functional surfaces, and as a precursor for ion-exchange resins.

Application

• Precursor for Anion Exchange Resins: The chloromethyl groups are readily aminated to produce strong base anion exchange resins for water purification, catalysis, and chromatography.
• Polymer Modification & Functionalization: Serves as a reactive intermediate for grafting other functional groups (e.g., amines, thiols, carboxylates) onto the polymer chain to alter surface properties, adhesion, or biocompatibility.
• Crosslinking Agent: Used in the formulation of thermosetting polymers and coatings, where the chloromethyl group participates in crosslinking reactions to enhance mechanical strength and chemical resistance.
• Support for Solid-Phase Synthesis: Functionalized as a solid support for peptide, oligonucleotide, or small molecule synthesis in combinatorial chemistry and pharmaceutical research.
• Membrane Fabrication: Employed in the development of functional membranes for separation processes, fuel cells, or sensors after appropriate chemical modification.
• Adhesive and Composite Formulations: Enhances the performance of adhesives and polymer composites by providing reactive sites for improved interfacial bonding with fillers or substrates.

Basic Information

Product Name	4-(Chloromethyl)Styrene Homopolymer
CAS No.	29296-32-0
Molecular Formula	(C9H9Cl)n
Molecular Weight	Contact for details
Synonyms	Poly(4-(chloromethyl)styrene); Poly(4-vinylbenzyl chloride); Poly(p-vinylbenzyl chloride); PVCMS; P-VBC; 4-Vinylbenzyl chloride polymer; Chloromethylated polystyrene (CMS); Reactive polystyrene derivative
EINECS	Contact for details

Quality Control

Our 4-(Chloromethyl)Styrene Homopolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent properties such as molecular weight distribution, chlorine content, and residual monomer levels. Certificates of Analysis (COA) detailing purity and key specifications are available upon request to support your quality assurance protocols.

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 moisture-sensitive; keep the container tightly sealed to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or beads
Identification (IR)	Conforms to structure
Chlorine Content	Contact for details
Residual Monomer (HPLC)	< 0.5%
Molecular Weight (GPC)	Customizable (e.g., Mn 5,000 - 100,000)
Polydispersity Index (PDI)	Contact for details
Loss on Drying	< 1.0%

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