PNIPAAm

polymer

PNIPAAm (poly(N-isopropylacrylamide)) is a synthetic polymer known for its sharp, reversible lower critical solution temperature (LCST) phase transition around 32°C, meaning it switches between hydrophilic and hydrophobic states in response to temperature changes. This thermoresponsive behavior makes it valuable in biomedical and pharmaceutical applications where controlled release, cell culture, or targeted delivery is needed; it is also investigated for smart coatings, separation systems, and biosensors. Unlike conventional polymers with fixed properties, PNIPAAm's stimuli-responsive nature allows engineers to design systems that actively respond to environmental conditions, though it remains primarily used in research and specialized biotech applications rather than high-volume industrial manufacturing.

smart drug delivery systemsthermoresponsive coatingscell culture substratesbiosensors and diagnosticsseparation membranesresearch and development

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Compressive Strength(σc)
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Pa——
Elongation at Break(εf)
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Ultimate Tensile Strength(σUTS)
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Pa——
Young's Modulus(E)
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Pa——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
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K——
Melting Point / Solidus(Tm)
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K——
Maximum Service Temperature(Tmax)
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K——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Refractive Index(n)
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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.