Term: Fluoropolymer

Category: Polymers

Definition: Fluoropolymers contain at least one fluorine atom on every carbon atom, and that replace (totally or partially) any hydrogens that would normally be in the polymer backbone. Because of their superior property characteristics, they provide unmatched resistance to chemical attack (due to the strength of the carbon-fluorine bond), have excellent heat resistance, and have extremely low coefficients of friction (dry conditions). Some common types are polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), and polyvinylidene fluoride (PVDF). These types of polymers are well-suited for use in applications that require a high degree of durability and low reactivity.

Structure: Carbon-based polymer backbone with partial or complete fluorine substitution (e.g., –(CF₂–CF₂)ₙ– in PTFE)

Source: Synthetic polymer

Common Uses: 

• In biomedical applications, fluoropolymers are used in catheters, guidewires, vascular grafts, and implantable device components due to their low friction, chemical inertness, and hemocompatibility. 
• They are commonly applied as lubricious or protective coatings on blood-contacting medical devices to reduce friction, wear, and thrombogenic interactions.

Related Content and Resources: 

Intro to PTFE Coatings for Medical Devices and Alternatives

Hydrophilic vs. PTFE Coatings for Guidewires & Vascular Access Devices