Product Introduction
Chemical name: Poly[4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene]
CAS No.: 37626-13-4
Cat. No.: 932915
Purity: 99%
Intrinsic viscosity: 100±5 mL/g
Glass transition temperature, Tg: 240±2°C
Optical transparency: ≥95%
Storage: Room temperature
Specifications Download
Package Size: 5g, 25g, bulk
PF235 is a transparent amorphous perfluorinated copolymer based on 4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole and tetrafluoroethylene.
Compared with lower-Tg grades such as PF160, PF235 is designed for applications where higher thermal resistance is required. With a glass transition temperature of approximately 240°C, PF235 combines high optical transparency, low refractive index, low dielectric properties, hydrophobicity and high-temperature dimensional stability.
J&K Scientific supplies PF235 for advanced optical, electronic, membrane and surface-engineering research, with support for laboratory evaluation, scale-up and customized intrinsic viscosity requirements.
Key Properties of PF235
High Glass Transition Temperature
PF235 has a specified glass transition temperature of 240±2°C, making it suitable for applications that require greater thermal stability than lower-Tg amorphous fluoropolymer grades.
High Optical Transparency
PF235 offers high optical transparency, supporting use in transparent coatings, optical layers and photonic-material research.
Low Refractive Index
The amorphous fluoropolymer structure provides a low refractive index, making PF235 useful in optical systems where refractive-index contrast or reflection control is important.
Low Dielectric Properties
PF235 can be evaluated for low-k dielectric and insulating applications in advanced electronics and high-frequency systems.
Hydrophobic and Low-Surface-Energy Properties
The highly fluorinated polymer surface provides strong hydrophobicity and low surface energy, supporting anti-fouling, release and protective-coating research.
Amorphous Structure
Unlike semi-crystalline fluoropolymers, PF235 remains amorphous, helping reduce optical scattering and anisotropic behavior.
Applications
High-Temperature Optical Coatings
PF235 is well suited for research involving transparent fluoropolymer coatings where optical clarity and elevated-temperature stability are both required.
Photonics and Waveguide Cladding
Its low refractive index and high thermal stability make PF235 a candidate material for optical waveguide cladding and photonic-layer research.
High-Frequency Electronics
PF235 can be evaluated as a low-k insulating material in high-frequency electronic and communication applications.
Microfluidics and Surface Engineering
Its hydrophobic, low-surface-energy surface supports research involving anti-fouling, release and chemically resistant coatings.
Gas-Separation Membranes
The amorphous polymer structure and free-volume characteristics make PF235 relevant to gas-transport and separation-membrane research.
High-Temperature Specialty Coatings
PF235 may be evaluated where transparent fluoropolymer films must retain performance under elevated thermal conditions.
PF160 vs PF235: Which Grade Should You Choose?
| Property |
PF160 |
PF235 |
| CAS |
37626-13-4 |
37626-13-4 |
| Intrinsic viscosity |
95±5 mL/g |
100±5 mL/g |
| Tg |
163±2°C |
240±2°C |
| Transparency |
≥95% |
≥95% |
| Primary selection factor |
Lower Tg / processability |
Higher thermal resistance |
Related Article：
PF160/PF235: Domestic Amorphous Fluoropolymers – Direct Replacement for Teflon™ AF with Reliable Supply, Independent of EU Restrictions - J&K Scientific LLC
Frequently Asked Questions
What is PF235?
PF235 is a high-Tg amorphous perfluorinated copolymer based on cyclic dioxole and tetrafluoroethylene units.
What is the glass transition temperature of PF235?
J&K Scientific PF235 has a specified Tg of 240±2°C.
What is PF235 used for?
PF235 can be evaluated for optical coatings, photonic devices, low-k dielectric layers, waveguide cladding, microfluidic coatings, gas-separation membranes and other high-temperature fluoropolymer applications.
What is the difference between PF235 and PF160?
The main difference is glass transition temperature. PF235 has a Tg of approximately 240°C, while PF160 has a Tg of approximately 163°C. PF235 is therefore more suitable where higher thermal resistance is required.
Is PF235 an alternative to Teflon™ AF 2400?
PF235 can be evaluated as a high-Tg amorphous fluoropolymer alternative for R&D applications where materials such as Teflon™ AF 2400 have traditionally been considered. Application-specific validation is recommended.
Can PF235 be supplied in bulk?
J&K Scientific supports research evaluation and larger-volume requirements. Customers can contact J&K for bulk supply, customized specifications and quotation.
Can intrinsic viscosity be customized?
The current J&K product page lists PF235 with intrinsic viscosity of 100±5 mL/g and indicates that high intrinsic viscosity can be customized.
Can PF235 be supplied as a customized solution?
Yes. In addition to polymer resin, J&K Scientific can provide customized PF235 solutions based on customer requirements, including target concentration, solvent system and required volume. Customers can Contact Our Technical Team to discuss application-specific solution requirements.
