polyphosphazenes_3

polymer

Polyphosphazenes are a class of synthetic polymers with an inorganic backbone consisting of alternating phosphorus and nitrogen atoms, offering tunable properties through organic side-group substitution. They are used in advanced applications requiring thermal stability, flame resistance, and chemical inertness, with particular value in aerospace, medical devices, and specialty coatings where conventional organic polymers fall short. Their phosphorus-nitrogen backbone provides inherent fire-retardancy without halogenated additives, making them attractive for regulated industries seeking safer, more durable alternatives to traditional elastomers and plastics.

aerospace thermal protectionmedical implant coatingsflame-retardant seals and gasketshigh-temperature elastomerschemical-resistant membranesprotective fiber applications

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
K
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.