Basic of POLYMER SCIENCE

POLYMER SCIENCE 

1.    What are monomers and polymers?

2.    What is monomer residue?

3.    What is repeat unit of a polymer chain?

4.    What is the difference between homopolymer and co polymer?

5.    What is branched polymer?

6.    What is dendrimer?

7.    What is the difference between thermoplastic and thermosetting polymer?

8.    What are blocked polymers?

9.    What are graft polymers?

10.  Difference between isotactic, syndiotactic and atactic polymers?

11.  What is combed polymer?

12.  What are star polymers?

13.  What is polymerization and how it can be classified?

14.  What is chain polymerization?

15.  What are the steps of polymerization?

16.  What is free radical polymerization?

17.  What is the mechanism of free radical polymerization?

18.  Differentiate between anionic and cationic polymerization

19.  What are free radicals? How it can be produced?

20.  What is chain transfer reaction?

21.  What is CTA?

22.  What is copolymer?

23.  What is living polymer?

24.  What is step or condensation polymerization?

25.  What is self-condensation?

26.  What is AA-BB type polymerization?

27.  What are the conditions of step polymerization?

28.  What are the methods or techniques of polymerization?

29.  What is gas phase polymerization?

30.  What is liquid phase polymerization?

31.  What are the advantages and disadvantages of solution polymerization?

32.  What are the advantages of bulk polymerization?

33.  What are the ingredients used in an emulsion polymerization/

34.  What is interfacial poly condensation?

35.  What is the basic principle of interfacial poly condensation?

36.  What do you mean by monodisperse and poly disperse system?

37.  What is index of polydispersity?

38.  What is end group analysis?

39.  Why is osmometry?

40.  What is Z average molecular weight of polymer?

41.  What is molecular weight distribution curve?

42.  What are the methods used to calculate Mn and Mw?

43.  What do you mean by crystallinity and amorphousness in a polymer?

44.  What is Tg and Tm?

45.  What are the relations between Tg and Tm?

46.  What is Tf?

47.  What is Tg of rubber, nylon and polyester?

48.  What is crystallinity of polymer?

49.  What is amorphousness of polymer?

50.  What is index of crystallinity?

51.  What are the factors affects crystallinity in a polymer?

52.  What are the inter-molecular forces in a polymer?

53.  What is

a.H-bonding b. salt linkage c. ionic bond d. Van deer wale forces e. hydrophobic interaction f. NMR g. SEM  h. AFM  i. Polymer degradation

54.  How is polymer characterized?

55.  What are the types of polymer degradation?

56.  What is

a.         Chain end degradation

b.         Random degradation

c.          Thermal degradation

d.         Mechanical degradation

e.         Oxidative degradation

f.          Hydrolytic degradation

57.  What are anti oxidants?

58.  What are the factors required for a polymer to form a fiber?