What is the percentage of crystallinity of the given polymer based on the provided density information?
The percentage of crystallinity for the given polymer is 100%. This indicates that the entire polymer is in a crystalline state, with a highly ordered structure. Crystallinity is a measure of the degree of ordering or arrangement of polymer chains in a solid state, where the amorphous regions lack long-range order.
Calculation of Percentage of Crystallinity
- Description of Crystallinity:
Crystallinity is a fundamental property of polymers that determines the degree of organization in the polymer structure. A polymer can exist in a crystalline state, where the polymer chains are arranged in an ordered manner, or in an amorphous state, where the polymer chains are disordered.
- Formula for Calculating Percentage of Crystallinity:
The formula to calculate the percentage of crystallinity is:
Percentage of crystallinity = [(Density crystallinity - Density amorphous) / (Density crystallinity - Density amorphous)] × 100
- Density Information Provided:
Density crystallinity = 0.998 g/cm^3
Density amorphous = 0.870 g/cm^3
Density polymer = 0.925 g/cm^3
- Calculation:
Plugging the given densities into the formula, we get:
Percentage of crystallinity = [(0.998 - 0.870) / (0.998 - 0.870)] × 100
Percentage of crystallinity = [0.128 / 0.128] × 100
Percentage of crystallinity = 100%
Therefore, the percentage of crystallinity of the given polymer based on the provided density information is 100%. This signifies that the polymer is entirely in a crystalline state.