Final answer:
The main polymer used to make car tires is polybutadiene, with about 70% of its production dedicated to this use. Styrene-butadiene rubber (SBR) is also commonly used, making up about 50% of car tire production. Neither of these polymers is listed in the multiple-choice options provided.
Step-by-step explanation:
Car tires are made from synthetic rubber, and the main type of synthetic rubber used is polybutadiene. This polymer is formed from the polymerization of the monomer 1,3-butadiene. Polybutadiene rubber has a high resistance to wear and about 70% of its production is used in the manufacturing of car tires due to its durability and performance in this application. It is also noted that about 25% of polybutadiene is utilized as an additive to enhance the toughness and impact resistance of plastics like polystyrene and acrylonitrile butadiene styrene (ABS).
Another synthetic rubber commonly used in tire production is styrene-butadiene rubber (SBR). SBR is derived from styrene and butadiene and accounts for about 50% of car tire production. It provides good abrasion resistance and aging stability, especially when additives for protection are included.
In summary, while there are several synthetic rubbers and plastics mentioned in the reference materials, including polypropylene and tetrafluoroethylene, the correct answer for the material predominantly used in making car tires is not provided in options A, B, or C. Instead, it is a polymer not listed in the multiple-choice options, which means the student might be looking for polybutadiene or styrene-butadiene rubber (SBR), both of which are extensively used in tire manufacturing.