Waveguide compositions and waveguides formed therefrom
View Patent ↗Provided are compositions which include a polymer, having units of the formula (RSiO 1.5 ), wherein R is a substituted or unsubstituted organic group, and a plurality of functional end groups. A first component is provided for altering the solubility of the composition in a dried state upon activation. A second component contains a plurality of functional groups chosen from epoxides, oxetanes, vinyl ethers and combinations thereof. The second component is present in an effective amount to improve flexibility of the composition in a dried state before and after activation. Also provided are flexible optical waveguides, methods of forming flexible optical waveguides and electronic devices that include a flexible optical waveguide.
1. A composition comprising:
a polymer, comprising units of the formula (RSiO 1.5 ), wherein R is a substituted or unsubstituted organic group, and a plurality of functional end groups;
a first component for altering the solubility of the composition in a dried state upon activation; and
a second component containing a plurality of functional groups chosen from epoxides, oxetanes, vinyl ethers and combinations thereof, wherein the second component is present in an effective amount to improve flexibility of the composition in a dried state before and after activation.
2. The composition according to claim 1 , wherein the second component comprises a material chosen from substituted and unsubstituted alkyl and aryl hydrocarbons, ethers, acrylates, novolacs, nanoparticles, polyimides, polyurethanes, polyesters, polysulfones, polyketones, fullerenes, POSS silicons, and combinations thereof.
3. The composition according to claim 1 , wherein the second component is a polyepoxide.
4. The composition according to claim 1 , wherein the polymer further comprises units of the formula (R 1 SiO 1.5 ), wherein R 1 is a substituted or unsubstituted alkyl group and R is a substituted or unsubstituted aryl group.
5. The composition according to claim 1 , wherein the composition in the dried state is aqueous developable.
6. A flexible optical waveguide, comprising a core and a clad, wherein the core and/or the clad are formed from a composition comprising:
a polymer, comprising units of the formula (RSiO 1.5 ) wherein R is a substituted or unsubstituted organic group, and a plurality of functional end groups;
a first component for altering the solubility of the composition in a dried state upon activation; and
a second component containing a plurality of functional groups chosen from epoxides, oxetanes, vinyl ethers and combinations thereof, wherein the second component is present in an effective amount to improve flexibility of the composition in a dried state before and after activation.
7. The flexible optical waveguide according to claim 6 , wherein the second component comprises a material chosen from substituted and unsubstituted alkyl and aryl hydrocarbons, ethers, acrylates, novolacs, nanoparticles, polyimides, polyurethanes, polyesters, polysulfones, polyketones, fullerenes, POSS silicons, and combinations thereof.
8. The flexible optical waveguide according to claim 6 , wherein the second component is a polyepoxide.
9. The flexible optical waveguide according to claim 6 , wherein the polymer further comprises units of the formula (R 1 SiO 1.5 ), wherein R 1 is a substituted or unsubstituted alkyl group and R is a substituted or unsubstituted aryl group.
10. A method of forming a flexible optical waveguide comprising a core and a clad, the method comprising:
(a) forming a layer over a substrate from a composition comprising a polymer, comprising units of the formula (RSiO 1.5 ), wherein R is a substituted or unsubstituted organic group, and a plurality of functional end groups; a first component for altering the solubility of the composition in a dried state upon activation; and a second component containing a plurality of functional groups chosen from epoxides, oxetanes, vinyl ethers and combinations thereof, wherein the second component is present in an effective amount to improve flexibility of the composition in a dried state before and after activation; and
(b) activating at least a portion of the layer, wherein the layer is a core or a clad layer.
11. The method according to claim 10 , wherein the second component comprises a material chosen from substituted and unsubstituted alkyl and aryl hydrocarbons, ethers, acrylates, novolacs, nanoparticles, polyimides, polyurethanes, polyesters, polysulfones, polyketones, fullerenes, POSS silicons, and combinations thereof.
12. The method according to claim 10 , wherein the second component is a polyepoxide.
13. The method according to claim 10 , wherein the polymer further comprises units of the formula (R 1 SiO 1.5 ), wherein R 1 is a substituted or unsubstituted alkyl group and R is a substituted or unsubstituted aryl group.
14. The method according to claim 10 , wherein the composition in the dried state is aqueous developable.