Multiple choice Which of the following is an example of semi-crystalline thermoplastics? Polyetherimide Polyether ether ketone Thermocole Lexan PVC Reveal answer Fill a bubble to check yourself B Correct answer Explanation Polyether ether ketone (PEEK) is a semicrystalline thermoplastic polymer with excellent mechanical and chemical resistance properties that are retained till high temperatures. Thus, this option is correct.