Chemistry Reference
In-Depth Information
4. Discuss chlorination of poly(vinyl chloride).
5. Discuss chlorination of poly(vinylidine chloride) and poly(vinyl fluoride).
6. Describe the reactions of sodium azide with poly(vinyl chloride) and the subsequent reactions of
the azide group. Use chemical equations.
7. Describe reactions of poly(vinyl chloride) with sulfur compounds.
8. What are the products of reactions of poly(vinyl chloride) with aniline? Show and explain.
9. Explain how carbanionic centers can be formed on the backbones of poly(vinyl chloride)
molecules. Show what subsequent reactions can take place.
10. What happens when poly(vinyl chloride) is treated with organolithium compounds. Explain with
the help of chemical equations.
11. Discuss photo chlorination of polystyrene.
12. Discuss chloromethylation reactions of polystyrene and its copolymers, showing all chemical
reactions.
13. Discuss various reactions of chloromethylated polystyrene with the help of chemical equations.
14. Show examples of the Friedel-Craft reactions of polystyrene and chloromethylated polystyrene.
15. Discuss sulfonation of polystyrene.
16. Discuss nitration of polystyrene, reduction of nitropolystyrene, and the subsequent diazotization
reaction.
17. Discuss matalation of polystyrene and subsequent reactions.
18. Discuss reduction reactions of the polymers of methacrylic and acrylic esters with metal
hydrides. What solvents give optimum conditions?
19. Discuss nucleophilic substitution reactions of poly(methyl methacrylate); the Arndt-Eister
reactions of poly(methacryloyl chloride) and the Curtius and Lossen rearrangements of poly
(acryloyl chloride)
20. Show a Diels-Alder reaction of poly(furfuryl methacrylate) with maleic anhydride.
21. What are the industrial processes for preparation of poly(vinyl butyral)? Describe the process,
showing all chemical reactions.
22. How can the Schotten-Baumann esterifications of poly(vinyl alcohol) are carried out? Explain.
Section 9.5
1. Discuss the vulcanization reactions of rubbers. Show all the chemical reactions.
2. Discuss ionizing radiation cross-linking of polymers.
3. Show the reaction of photocross-linking of poly(vinyl cinnamate) and explain the mechanism.
4. Show the reactions of photocross-linking of polymers bearing azide groups.
5. Draw examples of polymers with pendant benzoin and furoin groups.
6. Explain the mechanism of photocross-linking by 2
type dimerization. Give examples.
7. Discuss typical ultraviolet light-curable coating compositions by free radical and by cationic
mechanisms.
8. Why are photoinitiators preferred to photosensitizers in UV-curable materials?
9. Discuss with the help of chemical equations the mechanism of photoreduction of aromatic ketone
photoinitiators hydrogen donors and by electron donors.
10. Discuss photoinitiators for photocross-linking by cationic mechanisms, showing all reactions and
products.
11. Discuss cross-linking reactions by electron beams.
p
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