Intellectual Property Office
Non-Confidential Disclosures
“Functional Cyclic Phosphazenes with Photonic Applications”
PSU Invention Disclosure No. 2006-3275
Key Words:
Perfluorocyclobutane (PFCB) polymers, photonic applications, optical waveguides
Links:
http://research.chem.psu.edu/hragroup/
Inventors:
H.R. Allcock, S.Y. Cho
Background:
Polymeric optical waveguides have shown great promise for integrated optical circuits due to their ease of processibility and integration. However due to the various essential technological requirements that optical polymers must meet the technology is still underdeveloped. For polymers to be used as optical waveguides, mechanical and chemical properties such as optical loss, refractive index, birefringence and thermal stability must all be considered. Recently, fluorine-containing polymers have been of considerable interest for optical and electronic applications because of their low optical loss, ease of processibility, low dielectric constant refractive index and low moisture absorption. While fluorination solves some of the problems associated with developing optical polymers, they still require improvements in their thermal, chemical and environmental stability as well as higher precision refractive index control.
Invention description:
The disclosed invention provides for novel UV or thermal-curable perfluorinated multifunctional phosphazene monomers used in preparation of a low optical loss polymeric material. The invention improves the thermal, chemical and environmental stability, refractive-index control, as well as the ease of device fabrication. The advantageous embodiments of this invention include improved thermal stability, high chemical resistance, low optical loss and low birefringence.
Advantages:
- Used in optical polymer films or multilayered optical devices
- Incorporation of polyphosphazene rings into the polymer matrix
- Cyclophosphazene rings improve thermal, mechanical and chemical properties
- Polymer films with improved thermal stability and chemical resistance
- Low optical loss, low birefringence polymer films
- Covered broadly by US Provisional Patent Application
Contact:
Bradley A. Swope
Sr. Technology Licensing Officer
The Pennsylvania State University
113 Technology Center
University Park, PA 16802
Phone: (814) 863-5987
Fax: (814) 865-3591
E-mail: bradswope@psu.edu |
