From the below data the weight average molecular weight of the polymer is closes

Question

From the below data the weight average molecular weight of the polymer is closest to (g/mol): a) 22,000 b) 33,000 c) 36, 240 d) 66, 080 e) 72, 080 In polymer processing, the vulcanizing process is used to: a) Inhibit branching b) Create cross-links in elastomers c) Increase the crystallinity of thermoplastic polymers d) Reduce the crystallinity of thermosetting polymers e) Remove unwanted sulphur following the polymerization process. The schematic below shows a few chains of a thermoplastic polymer. Please answer the Question 20-22. The bonding between points A-B would be: a) Ionic b) Covalent c) Metallic d) Van der Waals e) Hydrogen

Explanation / Answer

Consider Carbon at A. It has one double bonds with another adjacent carbon atom and one bond with hydrogen atom. Thus, one valancy electron is free now.

Consider Carbon at B. It has two single bonds with hydrogens and one single bond with another carbon. Thus, it is having one valancy electron free.

Now in order to get stabilized, the carbons at A and B try to share the electrons instead of tranferring electrons. This is because, both the carbons have same electronegativity which does not allow them to transfer or loose one electron. Thus, the bond formed is COVALENT BOND.

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.