poly(acrylic acid)
polymerPoly(acrylic acid) is a water-soluble synthetic polymer characterized by carboxylic acid functional groups along its backbone, making it highly responsive to pH changes and capable of forming ionic interactions. It is widely used in superabsorbent materials, adhesives, coatings, and pharmaceutical formulations, where its ability to absorb and retain liquids and its biocompatibility are valuable. Engineers select this polymer for applications requiring hydrogel properties, controlled drug delivery, or reversible cross-linking, though its performance is heavily dependent on degree of hydration and pH environment.
superabsorbent polymers (diapers, hygiene products)biomedical hydrogelspharmaceutical excipients and drug deliverywater treatment and thickening agentsadhesive formulationscoating and sealing compounds
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | — | Pa | — | — | |
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — | |
Melting Point / Solidus(Tm) | — | K | — | — | |
Maximum Service Temperature(Tmax) | — | K | — | — | |
Thermal Conductivity(k) | — | W/(m·K) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | — | - | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.