Chloro Methyl Styrene
Reactive styrene monomer for functional polymers and crosslinked systems.
Chloromethyl Styrene enables tailored polymer architectures through grafting, modification, and copolymerization in demanding formulations.
Structure, Functionality, and Applications of Chloro Methyl Styrene
CAS No. 1592-20-7 & 30030-25-2
Chloromethyl Styrene (CMS) is a difunctional monomer featuring both a polymerizable double bond and a reactive chloromethyl group. This unique combination enables the synthesis of functional polymers with tailor-made properties.
As industries increasingly require polymers with advanced features, CMS has gained attention as a key reactive monomer for use in various high-performance materials and modification systems.
NAGASE supplies high-quality Chloro Methyl Styrene (CMS) for use in advanced materials, electronics, and specialty chemical formulations worldwide.
Applications
CMS is used as a functional monomer across advanced materials and electronic applications requiring precise chemical properties.
- Ion-exchange membranes and functional films – key material for selective permeability and separation processes
- Silane coupling systems – enhances adhesion and compatibility in composite formulations
- Rubber and fiber processing – modifies properties of elastomers and synthetic fibers
- Photographic and photosensitive materials – enables precision light-reactive behavior in imaging and coating technologies
- Electronic resist materials – used in microfabrication processes including semiconductor patterning
Features
CMS offers excellent reactivity and integration in advanced polymer systems and electronic formulations.
- High purity and consistent performance – essential for precision applications
- Reactive chloromethyl group – allows easy functionalization and copolymerization
- Good compatibility – suitable for use with a wide range of resins and additives
- Thermal and UV stability – maintains integrity during processing and end-use
Additional Information
Product Specification
| CMS-Para | CMS-Mixture | ||
| Purity | CMS | ≥95% | ≥95% |
| α-chloromethyl styrene | ≤2% | ≤2% | |
| Dichloro-form | ≤2% | ≤2% | |
| Isomers Ratio | Meta | 5% | 45-55% |
| Para | 95% | 45-55% |
| Appearance: | Slighty yellow transparent liquid (coloring with a polymerization inhibitor) | ||
| Molecular Weight: | 152,62 | ||
| Boiling Point: | 229-240°C | ||
| Freezing Point: | -15.5°C | ||
| Specific Gravity (25°C): | 1.09-1.10 | ||
| Viscosity cps (25°C): | 1.8-1.9cps | ||
| Refraction Index nD25: | 1,57 | ||
| Surface Tension | 38m N/m | ||
| Solubility | H2O in CMS | 0.07g/l | |
| CMS in H2O | 0.6g/l | ||
| Flash Point (CMS-Para): | 107°C (108°C) | ||
Product Varieties
Chloromethylstyrene (CMS), also called Vinylbenzyl chloride, is mixture of meta and para isomers. Two grades of CMS are available (1) CMS-Para (para-isomers only), (2) CMS-Mixture (a mixture of meta and para isomers).
