SYNTHESIS OF FLUOROSILICONES AND THEIR DERIVATIVES

• US 20120157703A1
• Filed: 08/16/2010
• Published: 06/21/2012
• Est. Priority Date: 09/01/2009
• Status: Active Grant

• Current Assignee: Adam Mickiewicz University
• Original Assignee: Adam Mickiewicz University
• Inventors: Marciniec, Bogdan, Maciejewski, Hieronim, Dabek, Izabela, Karasiewicz, Joanna
• Granted Patent: US 8,841,473 B2
• Time in Patent Office: Days
• US Class Current: 556/454
• CPC Class Codes: C07F 7/0879 Hydrosilylation reactions
• CPC Class Codes: C08G 77/045 containing less than 25 silicon atoms
• CPC Class Codes: C08G 77/12 containing silicon bound to hydrogen C08G77/045 takes precedence
• CPC Class Codes: C08G 77/14 containing silicon bound to oxygen-containing groups C08G77/045 takes precedence
• CPC Class Codes: C08G 77/385 containing halogens
• CPC Class Codes: Y02P 20/582 Recycling of unreacted starting or intermediate materials

Abstract

The subject of invention is the method of synthesis of fluorosilicone co-polymers of arbitrary topology and general formula 1 in which among others if A stands for CH—O(CH₂)_m(CF₂)_nCF₂H group, then the method is based on hydrosilylation reaction of appropriate fluoroalkyl-allyl ether with polyhydrosiloxanes containing at least one Si—H group, catalyzed by siloxide rhodium complex. If A stands for in which Z stands for divalent group either then the method is based on the reaction of nucleophilic opening of oxirane ring in appropriate epoxyfunctional co-polysiloxanes, in acidic environment.

Claims

1. The subject of invention is the method of synthesis of fluorosiloxanes of an arbitrary topology and general formula 1

2. Method of synthesis as in claim 1 wherein the catalyst is used in the amount ranging from 10⁻

4 to 10<sup>−

6</sup> mol Rh per 1 mol silane.

3. Method of synthesis as in claim 2 wherein the catalyst is used in the amount of 5×

10<sup>−

5</sup> mol Rh per 1 mol silane.

4. Method of synthesis of fluorosilicone copolymers of an arbitrary topology and general formula 1

5. Method of synthesis as in claim 4 wherein the reaction is performed at pH from 2 to 4.

6. Method of synthesis as in claim 4 wherein inorganic or organic acids are used for acidification.

7. Method of synthesis as in claim 6 wherein orthophosphoric acid is used for acidification.

8. Method of synthesis as in claim 4 wherein the reaction is performed at a temperature from the range 80-130°

C.

9. Method of synthesis as in claim 5 wherein inorganic or organic acids are used for acidification.

10. Method of synthesis as in claim 5 wherein the reaction is performed at a temperature from the range 80-130°

C.

11. Method of synthesis as in claim 6 wherein the reaction is performed at a temperature from the range 80-130°

C.

12. Method of synthesis as in claim 9 wherein the reaction is performed at a temperature from the range 80-130°

C.

13. Method of synthesis as in claim 7 wherein the reaction is performed at a temperature from the range 80-130°

C.