Which would be classified as a natural polymer?

Question

BlackTom AI · Accepted Answer

Question: Which would be classified as a natural polymer?

Option 1: Polystyrene. This is a synthetic polymer made from the monomer styrene, typically derived from petrochemicals. It is manufactured in industrial processes and is not found naturally in living organisms, so it does not meet the criteria for a natural polymer.

Option 2: Cellulose. Cellulose is a polysaccharide composed of long chains of glucose units linked by β(1→4) glycosidic bonds. It is a major structural component of plant cell walls and is produced biologically by plants, making it a classic example of a natural polymer.

Option 3: Polyester. Polyesters are synthetic polymers formed by polycondensation reactions between diols and dicarboxylic acids (or their derivatives). While they can be biocompatible, they are not naturally produced polymers in biological systems, classifying them as synthetic.

Option 4: Nylon. Nylon is a family of synthetic polymers created through polymerization (often condensation polymerization) of diamines and diacids. It is widely used in fibers and engineering plastics and is not a natural polymer.

In summary, among the options, only cellulose is a natural polymer produced by living organisms, while polystyrene, polyester, and nylon are synthetic polymers manufactured through chemical processes.

Which would be classified as a natural polymer?单项选择题

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