Chemistry NCERT Exemplar Solutions Class 12th Chapter Fifteen
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3 months agoContributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
In rubber, the polymer chain are held together by the weakest force of attraction. While, in plastic, the strong intermolecular force of attraction is present between elastomers and fibres.
In rubber, a few crosslinks are introduced between the chain, while plastics are linear or slightly branched molecules which gets soft on heating and hard on cooling.
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3 months agoNew question posted
3 months agoNew answer posted
3 months agoContributor-Level 10
This is a Long Answer Type Questions as classified in NCERT Exemplar
1.Poly-hydroxybutyrate-co-β-hydroxyvalerate (PHBV)
It's made by copolymerization 3-hydroxybutanoic acid and 3-hydroxypentanoic acid. PHBV is used in specialty packaging, orthopaedic devices, and controlled drug release. In the environment, PHBV is degraded by bacteria.
Nylon 2-Nylon 6: It is a biodegradable alternating polyamide copolymer of glycine and amino caproic acid.
Biopolymers are natural polymers found in plants and animals such as protein, fat, cellulose, and so on.
Biodegradable polymers are polymers that contain functional groups that are similar to those foun
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