Poly(N-isopropylacrylamide), or PNIPAm, is a synthetic polymer known for its temperature-responsive behavior—it exhibits a sharp change in water solubility around 32°C, transitioning from hydrophilic to hydrophobic as temperature rises. This thermosensitive property makes it valuable in biomedical and pharmaceutical applications where controlled release or reversible switching is needed, particularly in drug delivery systems, tissue engineering scaffolds, and smart hydrogels. Unlike conventional polymers, PNIPAm's unique responsiveness to physiological temperature changes has driven adoption in research and clinical development for applications requiring triggered response to body conditions, though it is less common in load-bearing structural applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 8.750 | MPa | — | ||
Elongation at Break(εf) | 1,212 | - | — | ||
Ultimate Tensile Strength(σUTS) | 307.8 | kPa | — | ||
Young's Modulus(E) | 248.3 | kPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 405.8 | K | — | ||
Maximum Service Temperature(Tmax) | 633.2 | K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.480 | - | — |