Polymers

Short Answer Type

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How does the presence of double bonds in rubber molecules influence their structure and reactivity?

From the structural point of view, the natural rubber is a linear cis-1, 4-polyisoprene. In this polymer the double bonds are located between C2 and C3 of isoprene units. This cis-configuration about double bonds do not allow the chains to come closer for effective attraction due to weak intermolecular attractions. Hence, the natural rubber has a coiled structure and shows elasticity.
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    What is the difference between polyacrylates and polyesters?

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    What do you mean by PDI? What does it tell us about a polymer?
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    How Dacron is obtained from ethylene glycol and tetrephthalic acid?

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    Identify the monomer in the following polymer structures:

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    What is biodegradable polymer and give an example of a biodegradable aliphatic polyester?

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    Identify the monomer in the following polymer structures:

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    Write the monomers used for getting the following polymers.
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    Give two differences between an addition polymer and a condensation polymer.

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    Write the names and structures of the monomers of the following polymers:
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