What is the classification of the following polymer? A) polyester B) polyamide C

Question

What is the classification of the following polymer? A) polyester B) polyamide C) polyurethane D) polycarbonate E) none of these Which of the following best describes the polymer shown below? A) Atactic B) isotactic C) syndiotactic D) antidiotactic E) none of these The compound shown below is used to initiate what type of polymerization? A) Anionic B) cationic C) radical D) condensation Which of the following could serve as a good initiator for isobutylene of the polymerization in cationic mechanism? (A) H^+, (B) BF_3 - H_2O (C) butyllithium, A & B (E) B & C. Which of the following could serve as a good initiator for acrylonitrile polymerization in anionic mechanism? (A) H^+, (B) BF_3-H_2O, (C) butyllithium, (D) A&B; (E) B & C Classify the following monomers in increasing reactivity towards anionic polymerization (least reactive to most reactive). (A) I

Explanation / Answer

15. Pollyester.

16. Isotactic polymer.

17.Radical polymerization.

18. BF3.H2O

19. H+

20. B

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