Question

The polymer formed by the condensation of hexamethylenediamine and adipic acid is-
A. Teflon
B. Bakelite
C. Dacron
D. Nylon-6,6

Answer 1

Hint- A polymer is a substance or material made up of huge molecules or macromolecules consisting of a large number of repeated subunits. All synthetic and natural polymers play an important and all-round function in daily life owing to their wide spectrum of properties.

Complete step-by-step answer:
Polymers vary from common synthetic plastics, like polystyrene, to natural biopolymers, like DNA, and proteins important to biology. The polymerization of certain small molecules, classified as monomers, occurs in natural and synthetic polymers. As a consequence, their broad molecular mass, as opposed to small molecule composites, has individuality, strong elasticity, viscoelasticity and a propensity to shape amorphous and semi crystalline structures rather than crystals.
Two forms of polymers exist: natural and man-made or synthetic.
Traditional synthetic fabrics have been used for decades such as cotton, shellac, resin, linen, silk and natural rubber. These are a variety of other natural polymers including cellulose, the key ingredient of wood and paper.
The polymer formed by the condensation of hexamethylenediamine $\left( {{H_2}N - {{\left( {C{H_2}} \right)}_6} - N{H_2}} \right)$ and adipic acid $\left( {HOOC - {{\left( {C{H_2}} \right)}_4} - COOH} \right)$ is always Nylon-6,6. To ensure this answer, we will look at the reaction below-
$
   \Rightarrow {H_2}N - {\left( {C{H_2}} \right)_6} - N{H_2} + HOOC - {\left( {C{H_2}} \right)_4} - COOH\xrightarrow{\Delta }{H_3}{N^ + } - {\left( {C{H_2}} \right)_6} - NH_3^ + {O^ - }OC - {\left( {C{H_2}} \right)_4} - CO{O^ - } \\
    \\
   \Rightarrow n{H_3}{N^ + } - {\left( {C{H_2}} \right)_6} - NH_3^ + {O^ - }OC - {\left( {C{H_2}} \right)_4} - CO{O^ - }\xrightarrow[{ - {H_2}O}]{\Delta }{\left[ {HN - {{\left( {C{H_2}} \right)}_6} - NHCOO - {{\left( {C{H_2}} \right)}_4} - COO} \right]_n} \\
$
Hence, option D is the correct option.

Note: Condensation is the change from gas to liquid process of the actual state of the material which is the opposite of vaporization. The term applies mainly to the flow of cooling. The alteration in the condition of the water vapor in atmospheric water is often definable while in touch with the atmosphere's atmospheric or firm surface or cloud condensation nuclei. When the transition occurs directly from the gaseous stage to the solid stage, the change is called deposition.