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Nylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical environments, and good stability under heat. Therefore, it is well suited to be used in 3D structural objects. A cylindrical nylon 6,6 pipe is made by injection molding. The pipe is 1 m long with an outer diameter of 8cm, and a thickness of 2mm. The crystallinity of the pipe is 25%. The density and associated percent crystallinity for two nylon 6,6 samples are measured as below:     ρ(g/cm3) crystallinity (%) 1.190 67 1.155 44   If the degree of polymerization is 500, calculate the number of chains in the pipe. (Assume the chains are equal in length).

Nylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical environments, and good stability under heat. Therefore, it is well suited to be used in 3D structural objects. A cylindrical nylon 6,6 pipe is made by injection molding. The pipe is 1 m long with an outer diameter of 8cm, and a thickness of 2mm. The crystallinity of the pipe is 25%. The density and associated percent crystallinity for two nylon 6,6 samples are measured as below:     ρ(g/cm3) crystallinity (%) 1.190 67 1.155 44   If the degree of polymerization is 500, calculate the number of chains in the pipe. (Assume the chains are equal in length).

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Nylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical environments, and good stability under heat. Therefore, it is well suited to be used in 3D structural objects. A cylindrical nylon 6,6 pipe is made by injection molding. The pipe is 1 m long with an outer diameter of 8cm, and a thickness of 2mm. The crystallinity of the pipe is 25%. The density and associated percent crystallinity for two nylon 6,6 samples are measured as below:
 
 
ρ(g/cm3) crystallinity (%)
1.190 67
1.155 44
 
If the degree of polymerization is 500, calculate the number of chains in the pipe. (Assume the chains are equal in length).
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