Crystallization is favored in polymer melts when the chain entanglement is ............. and only polymers with ............. molecular arrangement can crystallize.
Show Hint
- maximum, ordered
- minimum, random
- maximum, random
- minimum, ordered
The Correct Option is D
Solution and Explanation
- Chain entanglement refers to the interlocking or intertwining of polymer chains. When entanglements are minimum, the polymer chains can move more freely and align themselves in an ordered manner, which is conducive to crystallization.
- Molecular arrangement refers to the regularity and symmetry of the polymer chains. Only polymers with an ordered molecular arrangement can crystallize because an organized structure is required for the chains to form a crystalline lattice.
Thus, crystallization is favored when the chain entanglement is minimum and the molecular arrangement is ordered, making the correct answer (D) minimum, ordered.
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