Question

Degree of polymerization

Polyolefin

Ziegler-Natta

Polymer stereochemistry

Isotactic

Syndiotactic

Atactic

I missed class and have trouble defining these terms. looking for a brief description o nthem would be awesome

Answer 1

1.Degree of polymerization (DP)is the number of monomer units present in a polymer. It is mathematically written as

DP =Mn/MO, Mn= number average molecular weight and Mo= molecular weight of monomer.

2. Polyolefin is a polymer produced from olefins of formula CnH2n. For example polyethylene is a polymer produced using monomer ethylene.

3. It is a catalyst used for manufacturing of polymers made from alpha-olefins.

4. It volves the study of the relative spatial arrangement of atoms that form the structure of molecules and their manipulation

5. A polymer having random orientation of groups is atactic.

6. A polymer having alternating stereochemical configurations of the groups on successive carbon atoms in the chain is called syndiotactic

7. A polymer with a random orientation of groups is said to be atactic.