What Is Styrene Monomer? 

Ekansh Agarwal

Updated on:

If you didn’t know about styrene monomer, it doesn’t matter. Just read this article, it will provide all possible information about styrene. While moving at styrene, is an organic compound with the chemical formula C6H5CH=CH2. The derivative of benzene is a colorless oily liquid, although aged samples can appear yellowish. Styrene compounds evaporate easily and have a sweet smell, however, high concentrations have a less pleasant smell. The conventional method to produce styrene includes the alkylation of benzene with ethylene to produce ethylbenzene, followed by dehydrogenation of ethylbenzene to styrene. Let us know about the Styrene monomer.  

What Is Styrene Monomer? 

Styrene monomer is the monomer of the plastic industry, it is one of the important basic building blocks produced by the chemical industry. It is produced in th industries because naturally, it occurs in a very little quantity in some plants and foods and is also found in coal tar. 

The styrene monomer production process involves the alkylation of benzene with ethylene to produce ethylbenzene, followed by dehydrogenation of ethylbenzene to styrene. 

Mostly, Styrene monomer MSDS is produced from ethylbenzene, and almost all ethylbenzene produced worldwide is intended for styrene production.  Ethylbenzene is produced by a Friedel-Crafts reaction between benzene and ethylene. Basically this used aluminum chloride as a catalyst, but in modern production, this has been replaced by zeolites. 

Besides, ethylbenzene there are also several methods to produce styrene including ethylbenzene hydroperoxide, dehydrogenation, propylene oxide styrene monomer process, pyrolysis gasoline extraction, from toluene and methanol, and from benzene and ethane. 

A pure styrene monomer SDS in the form of gas or liquid will polymerize spontaneously to polystyrene, without the need for external initiators. It is called auto polymerization. 

Also Read : What Is Protein Monomer? 

Properties Of Styrene Monomer 

The properties of styrene monomer are, 

  • It is an aromatic liquid hydrocarbon, yellow or colorless, that evaporates easily and has a sweet smell. 
  • Styrene is used as a raw material in the production of numerous types of homopolymers and copolymers with exceptional properties used in a variety of industries. 

Also Read : What Is Lipid Monomer? 

Structure And Function Of Styrene 

After knowing about the styrene monomer, let me tell you the structure and function of the styrene in detail. 

Click here – What Is Protein Monomer?

Styrene Monomer Structure 

Styrene monomer structure includes a long hydrocarbon chain, with a phenyl group attached to every other carbon atom. Pure styrene is a colorless, clear, flammable liquid that has a boiling point of 145 degrees celsius and a freezing point of -30 degree celsius. 

The chemical formula of styrene is C8H8, but its structural formula is C6H5CH=CH2, which reveals more clearly the sources of its commercially useful properties. 

More than 50% of the total styrene produced is made into polystyrene, a light, stiff plastic widely used in injection-molded or foamed articles. 

Styrene Monomer Function 

The main and basic function of styrene monomer is to produce plastics, paints, and synthetic rubber. Therefore, styrene monomers are used to make plastic by the plastic industries all over the world. Styrene has been isolated from the benzoin resin produced by Styrax species.    

Fact About Styrene 

Here are some facts about styrene monomer, 

  • Breathing with a high amount of styrene can irritate the eyes, nose, and lungs. Therefore, workers who are exposed to high amounts of styrene for a long time can have injuries to the nervous system. 
  • Most of the carpeting used in homes and commercial buildings relies on SB Latex, styrene-based products. 
  • Styrene is often confused with polystyrene foam, which is actually a trademarked name for foam insulation. 
  • Very low-level os styrene occurs naturally in cheese, wine, beverages, cinnamon, beef, coffee beans, nuts, and beer. 
  • Since 1987, it was founded, the Styrene Information and Research center has invested more than $25 million in new and often cutting-edge research as part of its commitment to product stewardship. 

Follow Monomerof to know more about various monomers.


What Is The Use Of Styrene Monomer?

Styrene monomer is an industrial chemical and important raw material for making a range of modern plastics and synthetic rubbers which are used in a host of everyday products.

What Is Monomer Styrene Made Of?

Industrially, Styrene Monomer is prepared by the dehydrogenation of ethyl benzene. It is also produced commercially through ethylbenzene hydroperoxide.

What Type Of Monomer Is Styrene?

Styrene is an organic compound with the chemical formula C8H8, which is industrially produced from the dehydrogenation of ethylbenzene and has a strong affinity for the polymerization process.

Is Styrene Monomer Toxic?

Acute Health Effects
The following acute (short-term) health effects may occur immediately or shortly after exposure to Styrene Monomer: ► Styrene Monomer can irritate the skin, causing a rash, dryness, redness and burning feeling on contact. ► Exposure can irritate the eyes, nose and throat.

What Is Styrene Monomer Made From?

Styrene monomer is a basic building block of the plastics industry. The conventional method of producing styrene involves the alkylation of benzene with ethylene to produce ethylbenzene, followed by dehydrogenation of ethylbenzene to styrene.

Click here – What Is Lipid Monomer?

Who Are The Manufacturers Of Styrene Monomer?

LyondellBasell Industries is one of the world’s largest polymers, petrochemicals and fuels companies. LyondellBasell Industries is supplier for Styrene, monomer.

What Type Of Monomer Is Styrene?

Styrene monomer is an industrial chemical derived from petroleum or natural gas by-products and which, under normal conditions, is a clear, colourless liquid.


While going through this article you come to know various things about styrene. Like, styrene is synthesized in the laboratory. It occurs naturally but in very low quantities. Styrene is mostly used to make plastic. Do you know? The Styrene monomer manufacturers in the world are including Chevron Phillips, Chemical Company LLC, Saudi Basic Industries Corporation, ENI S.P.A, INEOS Styrolution Holding Lit, and Total S.A. These are some popular manufacturers of styrene. Styrene may be toxic for human beings if you breathe it in more amounts. According to researchers, it can cause cancer. Now, you have understood the styrene monomer


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What is a substitute for styrene monomer

What is styrene monomer?