20. what do the following terms mean? a. monomer b. polymer 26. what is the effe

Question

20. what do the following terms mean? a. monomer b. polymer

26. what is the effect of vulcanization process?

28. by using polyethylene as an exampmle draw a portion of a. a linear polymer b. a branched polymer c. a cross-linked polymer

38. do you think that plastic production will increase in the future? what advantages if any do you see when plastics are us 14. a certain cream imparts a somewhat greasy feel to the skin after its application. What kind of emulsion do you suspect this cream to be based on? a. water in oil b. oil in watered in place of other materials

6. what is the effect of water on the natural protein bonding in hair?

Explanation / Answer

20.a)A molecule of low molecular weight capable of reacting with identical ordifferent molecules of low molecular weight to form a polymer.

20.b)A compound of high molecular weight derived either by the addition ofmany smaller molecules, as polyethylene, or by the condensation ofmany smaller molecules with the elimination of water, alcohol, or thelike, as nylon.

26.

Vulcanization has effect on many properties:

The trends already mentioned will continue. In future, plastic products will increasingly feature integrated functions and miniaturisation will continue: plastic parts are getting increasingly smaller, finer and

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