Swelling Capacity
Term: Swelling Capacity
Category: Functional Properties
Definition:
The ability of hydrophilic and hydrophobic polymeric materials to swell upon contact with water is significant because of their composition, molecular-level structure, and water-loving capabilities. When hydrophilic or hydrophobic polymeric materials come into contact with water, the affinity of specific functional groups such as –OH, –COOH, and –NH₂ causes bonding with water and an increase in volume due to the swelling phenomenon. Because of the relationship between swelling capacity and the reduction of friction on devices such as catheters and stents, the swelling capacity is very important when developing the coatings used on these devices.
Related Content and Resources:
Hydrophilic Coatings for Medical Devices: Intro, Benefits & Uses
