GB1045111A - A new process for making siloxane polymers from silanes - Google Patents
A new process for making siloxane polymers from silanesInfo
- Publication number
- GB1045111A GB1045111A GB1923/65A GB192365A GB1045111A GB 1045111 A GB1045111 A GB 1045111A GB 1923/65 A GB1923/65 A GB 1923/65A GB 192365 A GB192365 A GB 192365A GB 1045111 A GB1045111 A GB 1045111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- siloxane
- radical
- product
- avge
- aqueous solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 title abstract 4
- 229920000642 polymer Polymers 0.000 title 1
- 150000004756 silanes Chemical class 0.000 title 1
- -1 cyclic siloxane Chemical class 0.000 abstract 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
- C07F7/0872—Preparation and treatment thereof
- C07F7/0874—Reactions involving a bond of the Si-O-Si linkage
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
- C08G77/50—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Silicon Polymers (AREA)
Abstract
Compounds of general formula RnSiX4- n and/or <FORM:1045111/C3/1> where R is a monovalent hydrocarbon or halohydrocarbon radical, R1 is a divalent hydrocarbon radical, X = F, Cl or Br, m = 0, 1, 2 or 3 (avge. value 1 to 2.5), n = 0, 1, 2, 3 (avge. value 1.25 to 2.5), are hydrolysed by vigorously agitating the compound(s) with an aqueous solution at pH 7 to 11 before, during and after hydrolysis, in the absence of solvents for the siloxane products present. The product contains 90% of non-cyclic siloxane and the majority of molecules present have <6 Si atoms. The product may be aged (optionally with heating) in contact with an aqueous solution at a pH >7 to obtain a hydroxylated siloxane containing <30% total cyclic siloxanes and linear siloxanes containing <7 Si atoms per molecule. This aged product may be further condensed to a high polymeric siloxane. Examples of R are methyl, R1CH2CH2- or R21CHCH2- where R1 is a perfluoralkyl radical (especially 3,3,3-trifluoropropyl).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34109564A | 1964-01-29 | 1964-01-29 | |
| FR997268A FR1427050A (en) | 1964-01-29 | 1964-12-03 | Process for preparing siloxane polymers from silanes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1045111A true GB1045111A (en) | 1966-10-05 |
Family
ID=26211513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1923/65A Expired GB1045111A (en) | 1964-01-29 | 1965-01-15 | A new process for making siloxane polymers from silanes |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1427050A (en) |
| GB (1) | GB1045111A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1787319A1 (en) * | 2004-08-31 | 2007-05-23 | Silecs OY | Novel polyorganosiloxane dielectric materials |
| US20110046319A1 (en) * | 2009-08-21 | 2011-02-24 | Shin-Etsu Chemical Co., Ltd. | Organopolysilmethylene and a cured product thereof |
-
1964
- 1964-12-03 FR FR997268A patent/FR1427050A/en not_active Expired
-
1965
- 1965-01-15 GB GB1923/65A patent/GB1045111A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1787319A1 (en) * | 2004-08-31 | 2007-05-23 | Silecs OY | Novel polyorganosiloxane dielectric materials |
| EP1787319A4 (en) * | 2004-08-31 | 2011-06-29 | Silecs Oy | Novel polyorganosiloxane dielectric materials |
| US20110046319A1 (en) * | 2009-08-21 | 2011-02-24 | Shin-Etsu Chemical Co., Ltd. | Organopolysilmethylene and a cured product thereof |
| JP2011042749A (en) * | 2009-08-21 | 2011-03-03 | Shin-Etsu Chemical Co Ltd | Organopolysilmethylene composition and cured product thereof |
| US8497024B2 (en) * | 2009-08-21 | 2013-07-30 | Shin-Etsu Chemical Co., Ltd. | Organopolysilmethylene-siloxane and a cured product thereof |
| TWI457373B (en) * | 2009-08-21 | 2014-10-21 | Shinetsu Chemical Co | Organopolysilmethylenesiloxane and a cured product thereof |
| KR101811449B1 (en) * | 2009-08-21 | 2017-12-21 | 신에쓰 가가꾸 고교 가부시끼가이샤 | Organopolysilmethylene siloxane and a cured product thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1427050A (en) | 1966-02-04 |
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