The table shows technical specifications for three different synthetic polymers, A, B, and C.
Tensile strength is the maximum stress a material can withstand before breaking under tension.
| Polymer | Melting point (∘C^{\circ}\text{C}∘C) | Softening temperature (∘C^{\circ}\text{C}∘C) | Stiffness (MPa\text{MPa}MPa) | Tensile strength (MPa\text{MPa}MPa) |
|---|---|---|---|---|
| A | 140 | 110 | 1200 | 28 |
| B | 265 | 155 | 3100 | 75 |
| C | 210 | 125 | 2100 | 45 |
A medical equipment manufacturer wants to design a surgical tray that can be safely sterilized in an autoclave using pressurized steam at 134∘C134^{\circ}\text{C}134∘C.
Suggest and explain which polymer, A, B, or C, the manufacturer should select.
Polymer: _________
Reason: _________
The repeating unit of polymer B is shown below:
[ClH∣∣−C−C−∣∣HH]n\left[ \begin{array}{cc} \text{Cl} & \text{H} \\ | & | \\ -\text{C} & \hspace{-0.5em}-\text{C}- \\ | & | \\ \text{H} & \text{H} \end{array} \right]_nCl∣−C∣HH∣−C−∣Hn
Draw the structural formula of the monomer from which polymer B is manufactured.
Naturally occurring biological molecules are often polymers. Match each of the following monomers with its corresponding naturally occurring polymer: