Polymers
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New answer posted
8 months ago
Contributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
Melamine formaldehyde polymer is formed by the condensation polymerization of melamine and formaldehyde. This is resin intermediate.
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8 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
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 this type of polymerization and it results in the formation of high molecular mass polymers.
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8 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
Enzymes are biocatalysts that are present in the body. They are basically proteins, and they are also considered as polymers.
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8 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
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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8 months ago
Contributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
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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8 months ago
Contributor-Level 10
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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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8 months agoContributor-Level 10
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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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8 months agoContributor-Level 10
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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.
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8 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
Addition polymers formed by the polymerization of a single monomeric species are known as homopolymers. The above-given polymer is a homopolymer.
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8 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
While manufacturing tyre rubber, 5 % sulfur is used as a crosslinking agent. A natural linear polymer of 2-methyl-1, 3-butadiene becomes hard on treatment with sulfur and forms vulcanised rubber. The structure of the product formed is,
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