Polymers

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Cis-polyisoprene has a coiled structure which consists of various chains held together by weak Van there Waals force of attraction. It can be stretched like a spring and thus, has elastic properties.

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A vulcanisation process is used to improve the physical properties of natural rubber. This process consists of heating a mixture of raw rubber with sulphur and an appropriate additive at a temperature range between 373 K to 415 k. S

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Melamine formaldehyde polymer is formed by the condensation polymerization of melamine and formaldehyde.  This is resin intermediate.

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Yes, nucleic acids, proteins, and starch can be considered step growth polymers because this type of polymerization involves a condensation reaction between two monomers. Loss of simple molecules such as water, alcohol results in th

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Enzymes are biocatalysts that are present in the body. They are basically proteins, and they are also considered as polymers.

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Rubber is a natural polymer. It is also known as an elastomer due to its elastic properties. It is manufactured from rubber latex.

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The cis-polyisoprene molecule is made up of several chains that are held together by weak van there Waals interactions and has a coiled structure. Thus, it can be stretched like a spring and exhibits elastic properties.

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The polymer shown above is cross-linked or network polymer. They are formed from bi or tri-functional monomers that contain strong covalent bond between polymer chains.

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This is a type of chain-growth polymerization. The molecules of the same monomer or different monomer are added together to form this type of polymer.

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Addition polymers formed by the polymerization from two different monomers are co-polymers. The above-given polymer is a co-polymer. For example Buna-N, Buna-S.