Final Answer:
The water absorption at 50% relative humidity of poly(N-vinyl-2-pyrrolidone) at 25 °C is 0.5%.
Explanation:
The water absorption of a polymer is the capacity of a polymer to absorb moisture from its environment. The water absorption value of a polymer is expressed as an increase in weight percent or % weight gain of a plastic specimen. The water absorption at 50% relative humidity of poly(N-vinyl-2-pyrrolidone) at 25 °C is 0.5%. The K-value of poly(N-vinyl-2-pyrrolidone) is 10.5, which is equivalent to a molecular weight of approximately 100,000 g/mol 2.
Therefore, it is concluded that the relative humidity of poly(N-vinyl-2-pyrrolidone) at 25 °C is 0.5%.
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Complete Question
Using the Polymers Database, what is the water absorption at 50% relative humidity of poly(vinyl pyrrolidone) (use Poly(N-vinyl-2-pyrrolidone) at 25 °C?
The K- value (molecular weight) of poly(N-vinyl-2-pyrrolidone) is 10.5.
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