Patent
Method for polymerizing monomer units and/or oligomer units by means of infrared light pulses
| العنوان: | Method for polymerizing monomer units and/or oligomer units by means of infrared light pulses |
|---|---|
| Patent Number: | 9,617,368 |
| تاريخ النشر: | April 11, 2017 |
| Appl. No: | 14/124480 |
| Application Filed: | June 06, 2012 |
| مستخلص: | A method for polymerizing monomer units and/or oligomer units is disclosed. Said method is characterized in that the energy required for polymerization is introduced into the monomer units and/or oligomer units to be polymerized by means of infrared light pulses, wherein the infrared light pulses have a wavelength of 2500 to 20000 nm, an intensity of more than 1014 W/m2, a duration of more than 8 fs and less than 3 ps and a substantially linear polarization. |
| Inventors: | Heyne, Karsten (Groβbeeren, DE); Heyne, Anja (Groβbeeren, DE) |
| Assignees: | FREIE UNIVERSITÄT BERLIN (Berlin, DE) |
| Claim: | 1. A method for polymerizing at least one of monomer units and oligomer units, wherein energy required for polymerization is introduced into at least one of the monomer units and the oligomer units to be polymerized by means of infrared light pulses, wherein the infrared light pulses have a wavelength of 2500 to 20000 nm, an intensity of more than 10 14 W/m 2 , a duration of more than 8 fs and less than 3 ps and a substantially linear polarization. |
| Claim: | 2. The method according to claim 1 , wherein the infrared light pulses additionally have a negative chirp. |
| Claim: | 3. The method according to claim 1 , wherein each infrared light pulse sweeps over a spectral range of 2 to 1000 cm −1 . |
| Claim: | 4. The method according to claim 1 , wherein the repetition rate of the infrared light pulses lies between 0.5 kHz and 200 MHz. |
| Claim: | 5. The method according to claim 1 , wherein multiple superposed infrared light pulses are being used, which differ from each other in each case in at least one parameter. |
| Claim: | 6. The method according to claim 1 , wherein the superposition of the infrared light pulses takes place by means of at least one optical parametric amplifier. |
| Claim: | 7. The method according to claim 1 , wherein the polymerization takes place in a localized space which—referring to the propagation direction of the infrared light pulses—is transversely smaller than 10 μm and longitudinally smaller than 20 μm. |
| Claim: | 8. The method according to claim 1 , wherein the polymerization takes place in a solvent. |
| Claim: | 9. The method according to claim 1 , wherein a polymerization reaction, taking place spontaneously, with respect to energy, after the required activation energy is provided, is influenced by application of a solvent at a ratio of 1:1 (v/m) to 10:1 (v/m) to at least one of the monomer units and the oligomer units to be polymerized in such a way that the polymerization reaction is at the least slowed down. |
| Claim: | 10. The method according to claim 1 , wherein at least one of the monomer units and the oligomer units to be polymerized are basic units of a plastic material. |
| Claim: | 11. The method according to claim 1 , wherein the method is executed in such a way that specific areas of a produced polymer have a higher degree of polymerization than other areas of the polymer. |
| Claim: | 12. The method according to claim 10 , wherein the method is executed in such a way that a plastic material is produced which has at least an elastic area and at least a plastic area. |
| Claim: | 13. The method according to claim 1 , wherein a produced polymer has anisotropic properties which in a first direction of the polymer are 50% higher or lower than the properties in a second direction. |
| Claim: | 14. The method according to claim 1 , wherein a micro-structured polymer is produced. |
| Claim: | 15. The method according to claim 5 , wherein the superposed infrared light pulses differ from each other regarding at least one of their spectral ranges and their polarization. |
| Patent References Cited: | 6855478 February 2005 DeVoe et al. 8017925 September 2011 Kress 8481232 July 2013 Watanabe et al. 2003/0099264 May 2003 Dantus 2008/0021126 January 2008 Dietliker et al. 2008/0255003 October 2008 Piletsky 2010/0173100 July 2010 Weiss 1944 002 March 1970 101 36 683 February 2003 10 2005 055 123 May 2006 601 14 820 September 2006 10 2008 055 719 May 2010 2 000 200 December 2008 2006/069448 July 2006 2007/082861 July 2007 2009/076267 June 2009 2009/135870 November 2009 |
| Other References: | Germany Office Action dated Jan. 24, 2012 in application No. 10 2011 050 894.5. cited by applicant Knoner et al., “Two-photon polymerization process for optically driven micromachines” International Society for Optical Engineering. Photonics: Design, Technology, and Packaging II, Brisbane, Australia, (603810-1-603810-9). Dec. 12, 2005. cited by applicant |
| Primary Examiner: | Heincer, Liam J |
| Attorney, Agent or Firm: | Maschoff Brennan |
| رقم الانضمام: | edspgr.09617368 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |