Natural rubber, coming from latex of Hevea brasiliensis, is mainly poly-cis-isoprene. Synthetic rubber, like other polymers, is made from various petroleum-based monomers. The most prevalent synthetic rubber is styrene-butadiene rubbers (SBR) derived from the copolymerization of styrene and 1,3-butadiene.

This latex rubber is mainly found in countries like Brazil, India, Indonesia, Malaysia, and Sri Lanka. It is made by the polymerization of isoprene (2 methyl-1, 3-butadiene) which has a chemical formula (C5H8) n and it is known as cis- 1, 4- polyisoprene.

Natural rubber has all cis-configuration. It is a linear polymer of cis-isoprene or cis-2-methyl-1,3-butadiene which is the chemical formula of rubber.

The secret to the success of synthetic rubber is in the structure of its chain of molecules: two hard ends on the outside (Styrene), a flexible, softer, rubbery middle part (Butadiene). So the structure is: Styrene – Butadiene – Styrene = SBS. That looks a little bit like a skipping rope with extra long handles.

Natural rubber is a polymer, a long, chain like molecule that contains repeating subunits. The term polymer comes from the Greek “poly” meaning many and “mer” meaning parts. The chemical name for natural rubber is polyisoprene. The monomer (meaning “one-part”) from which it is built is isoprene.

Vulcanized rubber is a synthetic (man-made) polymer, while pectin is an example of a natural polymer. Rubber can be found in nature and harvested as a latex (milky liquid) from several types of trees.

There are two general types of rubber: Natural rubber is produced from latex – milky emulsion drawn from the rubber tree (Hevea brasiliensis) or some other plants. When coagulated latex transforms into soft, plastic and sticky substance (crude rubber), which is then vulcanized (cured).

isoprene
The monomer (“one-part”) of natural rubber is isoprene. The chemical name for natural rubber is polyisoprene. Its IUPAC name of isoprene is 2-methyl but-1,3-diene.

-As we know that natural rubber is a polymer because it is by the polymerisation reaction of the monomer isoprene or 2-methyl – 1,3 butadiene. -When this natural rubber undergoes complete hydrogenation reaction, the double bond break and it yields copolymer of ethylene and propylene i.e.

Natural rubber is a homopolymer. Homopolymer are the polymers whose repeating structural units are derived from only one type of monomer unit. Copolymer are the polymers whose repeating units are derived from two or more type of monomers. Since, natural rubber is made of isoprene only, therefore it is a homopolymer.

The Manufacturing Process of Rubber Background of Natural Rubber. Natural rubber begins as latex. Natural Rubber Manufacturing Process. The natural rubber manufacturing process begins with harvesting latex from rubber trees. Creating Synthetic Rubber. Several different types of synthetic rubber have been developed over the years. Processing Rubber.

Rubber is a material which can stretch and shrink. It is a polymer. It can be produced from natural sources (e.g. natural rubber) or can be synthesised on an industrial scale. Many things are made from rubber, like gloves, tires, plugs, and masks. A few things can be made only from rubber.

Natural rubber, as its name indicates, is made from a natural product. It’s a plant based material that comes from a tree. Similar to tapping trees to collect maple, workers tap trees to collect latex.

Natural rubber or India rubber is a polymer of isoprene, an organic compound. Minor impurities of other organic compounds are also found. A number of nations in Southeast Asia and India are the top producers of natural rubber in the world.